|
Re: New 512 stroker build, ZERO power!
[Re: Dodgeguy101]
#1062440
08/26/11 01:07 PM
08/26/11 01:07 PM
|
Joined: May 2005
Posts: 1,986
Apollo, PA.
B1MAXX
top fuel
|
top fuel
Joined: May 2005
Posts: 1,986
Apollo, PA.
|
Quote:
Good thing you guys aren't doctors, the patient would be dead already. 
 good one
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 1969RR]
#1062441
08/26/11 01:50 PM
08/26/11 01:50 PM
|
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem
master
|
master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
|
Quote:
Quote:
You still have to use the degree wheel properly zeroed. a solid lifter and your dial indicator to know where the cam is really fazed.
and those spark plugs are way too cold!
I tried another set, hotter, more of a race plug. Didn't help at all. Blacker than black after 20 mins of run time! For sure, not complete combustion. Jeff
You have C57YC plugs in now not much more race around that that these are for 13 to 14 to 1 compression.
I would try champions RC12YC get street plug.
I would borrow a know good carb.
I would re check cam degree "with a solid lifter!!!!"
Then I would check the spark
Then I would start backing the pre load off 1 turn at a time till it starts to tick on all cylinders. if it takes more than 1.5 turns probably your problem.
Just My 
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 1969RR]
#1062444
08/26/11 05:00 PM
08/26/11 05:00 PM
|
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem
master
|
master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
|
Thinking back to when my cam bolt cam loose and it was bending all the valves it was way down on power and black the spark plugs too?? just a thought. You should not need any more than 93 octane but cats like budgies too expensive but don't hurt the cat! :-) Your sure you don't need to try another carb?? And you are sure you don't have the pre load too tight??? 
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: Dodgeguy101]
#1062445
08/26/11 05:30 PM
08/26/11 05:30 PM
|
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
cudadoug
master
|
master
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
|
Quote:
Good thing you guys aren't doctors, the patient would be dead already.
Diet Pepsi RIGHT THROUGH THE NOSE!! That was FUNNY ! ! !
Back on point: 110 octane isn't going to solve your problem. No matter what octane, the motor appears to be dead rich.
But since the front of the motor is apart, PLEASE re-degree the cam with a SOLID lifter using the #1 INTAKE lifter bore. Run it...
"The plugs are the window to the motor's soul". It either has WAY too much fuel, or not enough spark. Since you've had the same results with two diff ignition boxes...try a different dizzy...or go over yours with a fine tooth comb to ensure all is well.
But the rattling noise you hear...?? That is a brain bender.
HURRY UP, will ya! I like a good mystery, but I can't wait to see it solved!
"Good thing you guys aren't doctors"...I'm STILL chuckling over that one...
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: viperblue72]
#1062447
08/26/11 05:51 PM
08/26/11 05:51 PM
|
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk !
The village idiot's idiot
|
The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
|
Quote:
Is it possible Cam went flat on break in?
MAYbee and a good idea .....time to remove the oil-filter and cut it apart.
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: dOrk !]
#1062448
08/26/11 10:42 PM
08/26/11 10:42 PM
|
Joined: Aug 2009
Posts: 740
Anderson, IN
1969RR
OP
super stock
|
OP
super stock
Joined: Aug 2009
Posts: 740
Anderson, IN
|
Hey guys. Seems like she's commin' out....again! Machine shop / engine builder friend came by again tonight. Eliminated fuel question. I ran a line straight from a 5 gal can of 110 octane. Pulled all plugs again. Loosened all rockers 1 full turn. Looked in chambers with bore scope thru plug holes. Doesn't look good. Looks like something was in there. Small indentations, almost like grains of sand or very small ball bearings. All we could see was the marks on the pistons, never found anything difinitive. Put plugs back in. Crank, crank, crank....forever to get to start. Never has fired right up like it should from the start. We think whatever is/was in there is causing problems. So, I started taking it out. I can't tell you how depressed and frustrated I am with this! Oh well! Practice makes perfect..and I'm getting good. I'll let ya know what I find when she comes apart. Thanks again guys, you are the greatest! Take care, Jeff
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 1969RR]
#1062450
08/26/11 10:53 PM
08/26/11 10:53 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Hey guys. Seems like she's commin' out....again! Machine shop / engine builder friend came by again tonight. Eliminated fuel question. I ran a line straight from a 5 gal can of 110 octane. Pulled all plugs again. Loosened all rockers 1 full turn. Looked in chambers with bore scope thru plug holes. Doesn't look good. Looks like something was in there. Small indentations, almost like grains of sand or very small ball bearings. All we could see was the marks on the pistons, never found anything difinitive. Put plugs back in. Crank, crank, crank....forever to get to start. Never has fired right up like it should from the start. We think whatever is/was in there is causing problems. So, I started taking it out. I can't tell you how depressed and frustrated I am with this! Oh well! Practice makes perfect..and I'm getting good. I'll let ya know what I find when she comes apart. Thanks again guys, you are the greatest! Take care, Jeff
BUMMER
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: moparniac]
#1062451
08/26/11 11:00 PM
08/26/11 11:00 PM
|
Joined: Aug 2009
Posts: 740
Anderson, IN
1969RR
OP
super stock
|
OP
super stock
Joined: Aug 2009
Posts: 740
Anderson, IN
|
Quote:
Guess you found your rattling sound... You'll bounce back keep your head up
My machinist said the same thing! LOL Thanks! Jeff
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 70blackfish]
#1062456
08/29/11 05:42 AM
08/29/11 05:42 AM
|
Joined: Dec 2005
Posts: 4,231
State of retirement
52savoy
master
|
master
Joined: Dec 2005
Posts: 4,231
State of retirement
|
I know the damage has been done...  but I waited and waited and no one mentioned putting an offset key in the crankshaft throws the timing marks off on the balancer. Add in another offset camshaft sprocket key and no telling where the timing will come out if you don't find the engine's true TDC with a degree wheel and dial inda(or pos. stop)... Could be where the damage came from if that was overlooked. I feel better.. 
Last edited by 52savoy; 08/30/11 11:18 AM.
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 52savoy]
#1062457
08/30/11 08:25 PM
08/30/11 08:25 PM
|
Joined: Aug 2009
Posts: 740
Anderson, IN
1969RR
OP
super stock
|
OP
super stock
Joined: Aug 2009
Posts: 740
Anderson, IN
|
Hey everyone! Thought I'd give somewhat of an update. I pulled the engine again. Boy, I'm getting good at that! Anyway, when I pulled heads, I noticed an excessive amount of oil/fuel "gummy" stuff on the piston tops and the combustion chambers. Nothing foreign had got in there like we thought tho. No physical damage at all. Guess that's good. Got everything off engine except the rotating assy. When I spin the engine with a ratchet, I hear the "thunk" sound that is what I think I heard when it was running. More than one "thunk", multiple...If I put my hand on any piston and rotate the engine, I can feel the "thunk". I can rock the piston as it goes up and down. Pulled one (for now) measure it and it is 4.355" This is a 440 + .040, so .005 piston to wall. Too much?? Is the piston supposed to rock like that?? Remember, I'm using the 440Source 512 kit. Icon pistons. Also, seems like a lot of ring grind in oil. Oil is very "grey" in color and gritty. Bearing look like new. The rest is gonna come apart tomorrow. I just wish I could see something definitive! Still can't explain why no power either. Mystery! Thanks everyone! Jeff
|
|
|
Re: New 512 stroker build, ZERO power!
[Re: 1969RR]
#1062458
08/30/11 08:59 PM
08/30/11 08:59 PM
|
Joined: May 2006
Posts: 739
WA
JD Dart
super stock
|
super stock
Joined: May 2006
Posts: 739
WA
|
Silly question but how far do the pistons come up measured from the deck mine are .010 down at TDC
best so far 8.53 @ 158.59 MPH 60'1.240
|
|
|
|
|
