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new 500" stroker motor wont spin clear around?
Posted By: dirt
new 500" stroker motor wont spin clear around? - 01/28/09 12:50 AM
We just pulled the stroker motor off the engine stand to put in the car and i thought we should check the bellhousing to see if it was lined up correct and the crank will not spin 360 degrees around. it hits the same spot either way you spin it. it probably spins about 345 degrees from shere it stops around the other way until it hits.
i didnt build the motor a local race engine builder built it but i cant imagine this is normal? almost seems like one of the rod bolts or crank is hitting. its a 440 block stroked to 500"
any ideas?
Posted By: 1_WILD_RT
Re: new 500" stroker motor wont spin clear around? - 01/28/09 12:54 AM
Take it back....Wonder what else he missed...
Posted By: 65 Hemi
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:07 AM
Make sure the flex plate bolts are all the way in the convertor and the convertor is all the way on the input shaft.
Posted By: Pat7272
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:22 AM
would it turn over on the stand before y'all put it in the car?
Posted By: kjh440
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:26 AM
Clearance to starter?
Posted By: sixpackgut
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:26 AM
Posted By: Chuck@Best_Machine
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:30 AM
The rods are hitting the oil pick up tube
Posted By: torkrules
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:32 AM
Quote:
We just pulled the stroker motor off the engine stand to put in the car and i thought we should check the bellhousing to see if it was lined up correct and the crank will not spin 360 degrees around. it hits the same spot either way you spin it. it probably spins about 345 degrees from shere it stops around the other way until it hits.
i didnt build the motor a local race engine builder built it but i cant imagine this is normal? almost seems like one of the rod bolts or crank is hitting. its a 440 block stroked to 500"
any ideas?
I had the same problem with mine. In my case the crank counter weight was hitting a spot on the block. I had to grind the block to make clearance. I found it once I put the crank in. I guess the questions other have asked is valid. Did it turn before you put it in?
Posted By: rowin4
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:43 AM
I would think it was external, maybe a bolt in he flex plate to long, also harmonic balancer pulley bolt might be hitting. Unless you installed some internal parts after you got it from the engine builder. Did you install the heads? If so maybe the engine builder put a piston/ rod or both in backwards and a valve is hitting.
Posted By: TERRYTCKL
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:50 AM
Agree with rods hitting the oil pickup. The last thing that was probably done after assembly was putting in the pickup and then the pan. Bet they didn't spin the crank after that.
Posted By: Hot 340
Re: new 500" stroker motor wont spin clear around? - 01/28/09 01:53 AM
Dont worry about it. Just bolt it down and burn rubber. A little clunking around never hurt nuthin.
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:11 AM
its on the floor now. no starter or transmission yet or anything else bolted on outside.
Posted By: Quicktree
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:18 AM
put it back on the stand and pull the pan or take it back.
Posted By: MR_P_BODY
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:30 AM
Since a local builder did the job, load it back up
and take it back to him without opening it up... let
him take care of it
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:39 AM
yes i guess we are taking it back tomorrow. i unbolted everything on the outside and it still does it. that sucks my friend that owns it spent a fortune on it. its a blower motor.
Posted By: go green
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:55 AM
Sure hope no one dropped a nut down the intake
Posted By: Dodgem
Re: new 500" stroker motor wont spin clear around? - 01/28/09 03:16 AM
I three the oil pick up I have not done that yet but lots have with the strokers. Last thing you put on is the oil pan and pick up.
We are assuming you used an internal pickup!
Posted By: Diablo
Re: new 500" stroker motor wont spin clear around? - 01/28/09 04:28 AM
Hard to believe the engine builders wern;t turning the engine over all the time checking deck heights vavle to piston clearence, ect. i would think a 500ci blower engine would have atleast a single external pick up. I would have the whole engine looked over before giving anyone any $$$
Posted By: rowin4
Re: new 500" stroker motor wont spin clear around? - 01/28/09 06:31 AM
A lot of good guesses, let us know what you find out.
Posted By: 70Cuda383
Re: new 500" stroker motor wont spin clear around? - 01/28/09 11:45 AM
If it was me, I would have just lost confidence in the engine builder, and I would let him know that. I'd call him and tell him that it won't turn over all the way, maybe take it and show him, and then tell him that you now have reason to doubt the quality of his work, and will be taking it somewhere else for a full inspection. you will deduct any cost from what you owe him. if you already paid him, then you could try to invoice him for it, or cancel the credit card payment in full, and work it out afterwards.
unless you are familiar with the builder, have done work with him before, or know his work from other buddy's or friends of yours. if it was my first time there, and I had no history with them, I'd be extremly suspect of the rest of their work.
but, then again, I had a machine shop hose me on SEVERAL items that I discovered during my build up.
For example:
A) I spec'd the pistons to be .005 in the hole. calculated it out, knowing the deck height, rod, stroke, compression height, etc. it should have been .005 in the hole. on mock up, they called me and said "it all spins pretty good, everything checks out great. by the way, this thing is zero deck" when iwas putting it together myself, I measured them, and they were not zero deck, they were where they should have been, .005 in the hole!
B) I asked them to mock it up for me and check piston to valve clearance, and tell me what length pushrods I needed. I ordered the size they told me I needed, and they were .500" too long! the valves wouldn't even close! (apparently they forgot to switch out the solid lifter they used during mock up, to a hydraulic lifter for checing pushrod length)
C) they said they put it all together and it spun around great. when I put it together, the crank wouldn't even move because the main bearings needed to be shaved to work with my crank
D) After lots of mis-communication, confusion, and lack of understanding on how I wanted it balanced, I fired them and picked up all my stuff. they quipped at me "by the way, that cam is no good. it won't make enough vacuum to shift your transmission" I reminded them that the flywheels are for manualtransmissions, flex plates are for automatics, and it's a mopar, there is no vacuum signal needed for the automatic transmission!
--there's more that I could go into, but, you get the idea
so, if they missed that one tiny thing (oil pick up--if that's what it is) ask yourself...what else did they miss?
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 11:59 AM
it is an external pickup.
i was trying to think of anything we could have done to it but it has only sat on the engine stand. we wrapped up the carbs so nothing would fall in.
we even took off the blower before we turned it over, it wouldnt fit into the car with the blower on .so we have to set it in then put the blower back on. i would have thought if we did drop anything into the carb the blower would have caught it and it would not have made it into the motor.
i cant see how anything got into it here. we taped all the holes shut and they still are.
when we dropped it off the shop was full of blower motors,so it looked like he was used to it. they were all chevy motors with a couple fords though.
i will let you all know how it turns out.its going back today .
Posted By: Quicktree
Re: new 500" stroker motor wont spin clear around? - 01/28/09 02:47 PM
I sure would want to be there and find out really what the deal is. might make you think before starting it up.
Posted By: turbobitt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 03:15 PM
Quote:
Hard to believe the engine builders wern;t turning the engine over all the time checking deck heights vavle to piston clearence, ect. i would think a 500ci blower engine would have atleast a single external pick up. I would have the whole engine looked over before giving anyone any $$$
I can't believe that they wouldn't degree the cam in a 500" build. That would garantee rotation of the engine.
Posted By: WILD BILL
Re: new 500" stroker motor wont spin clear around? - 01/28/09 03:44 PM
Did you check and make sure they took the piston stop out if they did degree the cam 
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 05:35 PM
we were just looking into the spark plug hole with a light shining in through the valve when it opens i can see half the piston and there was nothing i could see. i thought something may have fell into the exhaust valve and onto the piston. we even turned the motor on its side so if there was anything there on it it should slide over to the side i could see.
the guy that built it says it spun when it left so if he takes it apart and there was nothing he did we would have to pay him. i dont blame him for that but if it was something we dropped in and he pulled the heads to get it the gaskets are $130 for the heads plus labor so i just wanted to be sure there wasnt something dropped in it.
Posted By: JohnRR
Re: new 500" stroker motor wont spin clear around? - 01/28/09 06:14 PM
Quote:
we were just looking into the spark plug hole with a light shining in through the valve when it opens i can see half the piston and there was nothing i could see. i thought something may have fell into the exhaust valve and onto the piston. we even turned the motor on its side so if there was anything there on it it should slide over to the side i could see.
the guy that built it says it spun when it left so if he takes it apart and there was nothing he did we would have to pay him. i dont blame him for that but if it was something we dropped in and he pulled the heads to get it the gaskets are $130 for the heads plus labor so i just wanted to be sure there wasnt something dropped in it.
If you have him do it be there when he disassembles it because if you aren't the next phone call will be looking for money because it wasn't his fault . 
Posted By: 1_WILD_RT
Re: new 500" stroker motor wont spin clear around? - 01/28/09 06:52 PM
Quote:
Quote:
we were just looking into the spark plug hole with a light shining in through the valve when it opens i can see half the piston and there was nothing i could see. i thought something may have fell into the exhaust valve and onto the piston. we even turned the motor on its side so if there was anything there on it it should slide over to the side i could see.
the guy that built it says it spun when it left so if he takes it apart and there was nothing he did we would have to pay him. i dont blame him for that but if it was something we dropped in and he pulled the heads to get it the gaskets are $130 for the heads plus labor so i just wanted to be sure there wasnt something dropped in it.
If you have him do it be there when he disassembles it because if you aren't the next phone call will be looking for money because it wasn't his fault .
There's a reason I put my own stuff together...After some of the stuff I've seen I wish I could do all the machine work but thats just not realistic...
Posted By: Troy
Re: new 500" stroker motor wont spin clear around? - 01/28/09 06:59 PM
Make sure the flex plate bolts to crank are not to long.
Don't ask me how I know....
Posted By: kingdust
Re: new 500" stroker motor wont spin clear around? - 01/28/09 08:32 PM
Ihave to assume you didn't turn the motor over on the stand,and I can't believe the guy who builds race engines would give you the motor that way! You mentioned bellhousing,if you put the flywheel on maybe the bolts are hitting the block, if not I would pull the pan down and see what's going on!
Posted By: kingdust
Re: new 500" stroker motor wont spin clear around? - 01/28/09 09:14 PM
In my last post I said I can't believe an engine builder would give you the motor that wouldn't turn over. Their are engine builders who rip people off and I know few on long island who since moved out of state because nobody would deal with them anymore. That's why I said take the pan down and see for yourself and then take it back so he can't BS you! Good luck.
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/28/09 09:26 PM
there are no flywheel bolts in it yet , that was my first thought too but its not bolted on yet.
we called and he said bring it over tomorrow morning and he will pull it apart while we are there.
i didnt want to take anything off myself because he may say we messed with it.
Posted By: blownzoom440
Re: new 500" stroker motor wont spin clear around? - 01/28/09 09:39 PM
there should be a screan under the carbs!
Posted By: 73cudaproject
Re: new 500" stroker motor wont spin clear around? - 01/28/09 09:44 PM
A few weeks ago my son completed his stroker motor which while building he routinely turned a complete 360. Everything was fine until he tested the oil pressure using a drill. Something was not quite right with the oil pressure but even more disturbing was afterwards the motor would lock up at about 180 degrees each way. Turns out an oil galley plug blew out and fell on the crank timing sprocket. The plug would lock on the timing chain on each side. Next time he is going to tap the holes and use threaded plugs. Since he was worried about valve interference he was relieved to discover the plug caused his problem. Good Luck!
Posted By: moparniac
Re: new 500" stroker motor wont spin clear around? - 01/28/09 10:42 PM
sounds real shady to me .....
Posted By: polyspheric
Re: new 500" stroker motor wont spin clear around? - 01/28/09 10:58 PM
Call him up, tell him what happened.
When he's done "explaining", tell him he has 24 hours to come over and pick it up, take it back to his shop, R&R it with new oil, gaskets, etc. and deliver it back again.
Unless, of course he wants to pay you $75. an hour to do his work for him?
If he refuses I'd like to know about it.
Wayyy too many "famous name shops" have screwed up like this (including for magazine projects) and they were very careful not to let it get out.
I shoot my own dog.
Posted By: B G Racing
Re: new 500" stroker motor wont spin clear around? - 01/28/09 11:10 PM
I'd reserve all judgement until the problem is found.Like what has been said,be there as it is being dis-assembled.Don't be surprised if some thing is found on top of a piston.Do you have or have access to a borescope?Do you know which cylinder is near the top of it's stroke when it locks?You can determine this by turning the engine until it stops,back it up and
put your finger over the plug hole to feel pressure.
Also if it's a blower motor,check your pully bolts on the front of the crank and make sure one is not interfearing on the timing cover.Check the same on the blower.
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/29/09 12:44 AM
the builder said he has something he can look into it with. i am not going to badmouth anyone yet. there could still be something dropped in on the piston.
anyway everyone screws up once in a while.i will see how it goes tomorrow morning. i will be really suprised if there is a nut or washer that fell inside it from me, i was really careful and i cant see anything on the piston. we even used a small magnet to try to find something.
Posted By: Streetwize
Re: new 500" stroker motor wont spin clear around? - 01/29/09 12:47 AM
It may have been fitted with either a non stroker or insufficiently cleareanced windage tray and it may only touch/scrape on one pair of rods....I'm sure he would have spun it around before putting the pan on it. Just tightening the oil pan bolts can be enough to make contact by compressing the gaskets.
Posted By: Runner
Re: new 500" stroker motor wont spin clear around? - 01/29/09 01:00 AM
Quote:
I'd reserve all judgement until the problem is found.Like what has been said,be there as it is being dis-assembled.Don't be surprised if some thing is found on top of a piston.Do you have or have access to a borescope?Do you know which cylinder is near the top of it's stroke when it locks?You can determine this by turning the engine until it stops,back it up and
put your finger over the plug hole to feel pressure. Also if it's a blower motor,check your pully bolts on the front of the crank and make sure one is not interfearing on the timing cover.Check the same on the blower.
everyones always so quick to pass judgement.
Posted By: Glen440
Re: new 500" stroker motor wont spin clear around? - 01/29/09 01:08 AM
Its how they handle the problem that will tell alot about them. It could be a number of minor things.
Posted By: 70Cuda383
Re: new 500" stroker motor wont spin clear around? - 01/29/09 05:46 AM
Quote:
Quote:
I'd reserve all judgement until the problem is found.Like what has been said,be there as it is being dis-assembled.Don't be surprised if some thing is found on top of a piston.Do you have or have access to a borescope?Do you know which cylinder is near the top of it's stroke when it locks?You can determine this by turning the engine until it stops,back it up and
put your finger over the plug hole to feel pressure. Also if it's a blower motor,check your pully bolts on the front of the crank and make sure one is not interfearing on the timing cover.Check the same on the blower.
everyones always so quick to pass judgement.
When you spend nearly $4500 in parts, and pay an engine shop $1500 for machine work, assembly, clearancing, etc. you tend to get a little jumpy when something's not right. If I'm going to spend $6000 on an engine build, that's something I don't want to do twice. I know everyone is human and we all make mistakes, but you have to wonder, if they missed something simple, what else did they miss? (that is, unless it was your fault because you dropped a nut down the intake or whatever)
Posted By: Mr 5 Speed
Re: new 500" stroker motor wont spin clear around? - 01/29/09 03:03 PM
Curious about the findings also. You mentioned almost completing 340 +/- a few degrees of rotation. I may need some educating here but if something was on top of any piston, wouldn't it only turn over 180 =/- a few degrees since every piston comes up twice ?? Sames goes for a rod bolt since they also make 2 passes (2 up/2 down) in 360 degrees. Someone clear that up for me. To clear this up for me, are you turning the engine around 180 degrees and calling that 360 since technically your balancer has made a 360 degree revolution but the engine has only completed one cycle?
Posted By: GODSCOUNTRY340
Re: new 500" stroker motor wont spin clear around? - 01/29/09 03:13 PM
360 degrees crank rotation the piston comes up once, not twice. You're thinking of camshaft rotation.
Posted By: B1Frank
Re: new 500" stroker motor wont spin clear around? - 01/29/09 03:24 PM
Posted By: Mr 5 Speed
Re: new 500" stroker motor wont spin clear around? - 01/29/09 03:25 PM
Gotcha. Thanks for that. So if he is describing 360 crank rotation then everyones guess of something on top of the piston, interference with the pickup, or rod bolt clearance completely makes sense to me now.
Posted By: BDS871Cuda
Re: new 500" stroker motor wont spin clear around? - 01/29/09 03:32 PM
720 degrees of crank for every 360 of cam.
It could be 1 of a 100 things. Give this shop
some time to get it figured out.
I've seen Jason Line make mistakes (very few)
and he get's it figured out.
Will soon find out.
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/29/09 05:37 PM
the motor got dropped off at the builder today and he didnt find anything on the piston laying. said it looks like something is hitting in the bottom end.
he is going to tear it down today and work on it until its fixed.
Posted By: MR_P_BODY
Re: new 500" stroker motor wont spin clear around? - 01/29/09 05:44 PM
Quote:
the motor got dropped off at the builder today and he didnt find anything on the piston laying. said it looks like something is hitting in the bottom end.
he is going to tear it down today and work on it until its fixed.
Glad to see it wasnt your fault, he'll fix you up,
he doesnt want to have anything bad said about him.
Its probably like Chuck said that the crank is crashing
the pick up
Posted By: polyspheric
Re: new 500" stroker motor wont spin clear around? - 01/29/09 06:12 PM
everyone screws up once in a while
He did, but you didn't (unless you still owe him money).
It's nice if he fixes it - but who pays you for your wasted time and trouble?
When it's fixed he owes you a favor, money, or a discount on future work (if he's smart that will be his choice)
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:01 AM
got a call. the builder said it was the timing gear on the crank for the gear drive. it was broke and came apart when he took the cover off.
we didnt even mess with it so thats pretty wild.
it was a milodon gear drive. never heard of that breaking on a motor that was never even cranked before!
he said he looked at his notes and he set the valve lash so he would have had to turn the motor when he built it and it was fine then. i am not sure who is going to pick up the bill for the tear down and reassembly. he called milodon to see what they said.
Posted By: WILD BILL
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:08 AM
Never would have guessed that
Posted By: blownzoom440
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:09 AM
no way he can blame the crank gear on you.
it must have beena tight fit.beat it on or something.it will be a week or 2 before you get it back togather.keep us posted on things as you go.
GOT BOOST?!
Posted By: HPMike
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:43 AM
Quote:
got a call. the builder said it was the timing gear on the crank for the gear drive. it was broke and came apart when he took the cover off.
we didnt even mess with it so thats pretty wild.
it was a milodon gear drive. never heard of that breaking on a motor that was never even cranked before!
he said he looked at his notes and he set the valve lash so he would have had to turn the motor when he built it and it was fine then. i am not sure who is going to pick up the bill for the tear down and reassembly. he called milodon to see what they said.
That's interesting...
That gear on those units are very beefy. Seems inconceivable, but? One of the necessary steps to set up a Milodon is to remove the factory timing cover pins in the block, set the "lash" between the gears and redrill the block to accept the oversize pins. I would imagine that if this wasn't done(or done improperly) that you could have a problem. Possibily some debris wound up wedging itself between the gears?? All speculation without actually seeing it.
Keep us posted.
MB
Posted By: hemi-itis
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:45 AM
Posted By: aarcuda
Re: new 500" stroker motor wont spin clear around? - 01/30/09 02:51 AM
SO much better that you found it now than at 6500 rpm later
Posted By: SSDA3426
Re: new 500" stroker motor wont spin clear around? - 01/30/09 03:13 AM
Quote:
SO much better that you found it now than at 6500 rpm later
Aint That The Truth......
Some things MULTI-MAKES Builders just don't know what to look at....I can't tell ya how many people that have called me or bought at swap meets from me a Flex Plate Because Their ENGINE BUILDER NEEDS IT TO BALANCE THE ASSEMBLY.....CHEVY BOYZ!!
Like one of the other members was saying Muscle Motors are on their Game.I have learned little things here and there working with them and being Sponsored By them over the years...Little things that even you yourself as a Professional Engine Builder wouldn't think of...Mike Really Knows what he's doing...
Good Luck!!
SS 
Posted By: kingdust
Re: new 500" stroker motor wont spin clear around? - 01/30/09 03:50 AM
like some one else said, better now than through the traps! if they determine that it was a defective gear he might try and hit you with a labor cost. but if he did install it incorrectly and if he's honest and wants your business again he will say, listen i made a mistake and i'll take care of it. keep us posted good luck.
Posted By: Anonymous
Re: new 500" stroker motor wont spin clear around? - 01/30/09 04:18 AM
any chance you could take a picture of that gear and post it? it's hard to imagine one of those breaking.
Posted By: 9 Sec Phill
Re: new 500" stroker motor wont spin clear around? - 01/30/09 04:51 AM
OK, here is what im thinking, I had a problem with the lower gear on my gear drive. The engine builder put it together and the gear did not set flush against the crank. The mopar 4" stroker crank has an outside radius and the crank gear was not machined with a radius. It kept the gear 3/16" from flush against the crank. I found out when my pulleys would not line up when installed. What im thinking is if its got a stroker crank with an outside radius and the gear was installed and just tapped back with out checking to see if it was flush, then when the balancer was installed it broke the gear by forcing it onto the radius......My
....Phill
Posted By: hemigod426
Re: new 500" stroker motor wont spin clear around? - 01/30/09 04:56 AM
yep, and im sure he heard it, or was his beer cans in oil pan...
Posted By: 9 Sec Phill
Re: new 500" stroker motor wont spin clear around? - 01/30/09 05:09 AM
So when you get to look at the motor, look at the snout of the crank and look for a line at the begining of the radius, mine had a line around it where it cut into the crank alittle from installing the balancer. The fix was to take the crankgear to a friend who machined the radius in the crank gear. The problem was solved and my pullies lined up!...Phill
Posted By: Dodgeman67
Re: new 500" stroker motor wont spin clear around? - 01/30/09 05:11 AM
I hope he pulled the timing cover first and didn't pull the heads off first?
Posted By: 9 Sec Phill
Re: new 500" stroker motor wont spin clear around? - 01/30/09 06:00 PM
Any more news?
Posted By: 69Cuda340S
Re: new 500" stroker motor wont spin clear around? - 01/31/09 02:16 AM
I'd be stopping by the machine shop to take a look if it was my engine.
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 01/31/09 03:43 AM
the engine actually belongs to the guy who owns the car i am building now . i am just the person building the car . he picked this engine builder and took the motor to him so i am just kind of watching what is happening.
i would like to see the gear too or at least a picture. he is supposed to have the new gear ordered and we should have the motor back next week. i just wonder who is picking up the tab on it?
Posted By: drag440
Re: new 500" stroker motor wont spin clear around? - 01/31/09 04:57 AM
Wonder if they used a crank key that was too tall and forced the gear over it splitting the gear in the keyway? Who supplied the gear set, the customer or the machine shop?
Posted By: 70blackfish
Re: new 500" stroker motor wont spin clear around? - 01/31/09 05:45 AM
good luck with Milodon.. bunch of dorks!!!
Posted By: QWK_ENUF
Re: new 500" stroker motor wont spin clear around? - 01/31/09 12:26 PM
we just recently picked up a 512 stroker from a notable michigan engine builder and the crank was hitting the oil pickup boss.
Posted By: dizuster
Re: new 500" stroker motor wont spin clear around? - 01/31/09 04:24 PM
Quote:
I hope he pulled the timing cover first and didn't pull the heads off first?
Excellent point. Would anyone here pull the timing cover off the motor before the heads? I sure wouldn't....unless there was something suspect there I knew about...
In the end it's all how he fixes the problem. Within' 2 days of you having the issue, the problem has already been found, and the new parts are on the way. As long as there is a $0 bill to go with it, that's about as much as you could ask for out of anyone...
Posted By: moparniac
Re: new 500" stroker motor wont spin clear around? - 02/04/09 10:00 PM
any update...... I know when my engine first got fired up and after about 45 minutes of warm up there was a tapping noise under the VC's and the #4 cam bearing spun and no oil was getting to the rovckers and the got hot and stuck to the shafts.... the machine shop that did the work bought me new crane gold roller rockers and the engine builder re did the whole setup .... no charge at all ...
Posted By: dirt
Re: new 500" stroker motor wont spin clear around? - 02/22/09 02:03 PM
got the motor back friday. didnt charge anything to fix.
the gear on the crank for the gear drive had a crack in it.it was so small i could barely see it but the builder said that when i tturned it tried to expand and jamed it up. the crack was right where the key way was too.
guess we will see how it is after we get it fired up,keep my fingers crossed.
Posted By: blownzoom440
Re: new 500" stroker motor wont spin clear around? - 02/22/09 02:05 PM
well it is fixed as far as you know.
i am sure he checked things 2x.now enjoy!
Posted By: Quicktree
Re: new 500" stroker motor wont spin clear around? - 02/22/09 02:27 PM
sounds like he took good care of you.
to the builder.
Posted By: Defbob
Re: new 500" stroker motor wont spin clear around? - 02/22/09 02:37 PM
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got a call. the builder said it was the timing gear on the crank for the gear drive. it was broke and came apart when he took the cover off.
we didnt even mess with it so thats pretty wild.
it was a milodon gear drive. never heard of that breaking on a motor that was never even cranked before!
he said he looked at his notes and he set the valve lash so he would have had to turn the motor when he built it and it was fine then. i am not sure who is going to pick up the bill for the tear down and reassembly. he called milodon to see what they said.
Tom had a similar incident. The snout on the 440source crank was on the higher end of the tolerance and we installed the lower Milodon gear. When we went to install the blower hub it wouldn't go on. so he tried to tap the lower gear off with a 1lb ball peen hammer and a chisel and the gear split in half. little too much tension from the tight fit I guess, oops. the gear was hard to install originally. He got another lower gear and he polished down the snout on the crank.
Posted By: WILD BILL
Re: new 500" stroker motor wont spin clear around? - 02/22/09 02:49 PM
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sounds like he took good care of you. to the builder.
Would love to see a picture of that sprocket 