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180* off? #1521074
10/21/13 06:25 PM
10/21/13 06:25 PM
Joined: Oct 2007
Posts: 947
Goodyear Arizona
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midnite360 Offline OP
super stock
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Goodyear Arizona
I think I am. Went to start my engine yesterday and no fire. Timing chain was installed Dot to Dot but before I degreed the cam I forgot to turn the crank 360. I hope I am right.

Re: 180* off? [Re: midnite360] #1521075
10/21/13 06:47 PM
10/21/13 06:47 PM
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Millinocket, Maine
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JonC Offline
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If I remember correctly, dot to dot is 180 degrees out not TDC.

Re: 180* off? [Re: midnite360] #1521076
10/21/13 06:49 PM
10/21/13 06:49 PM
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Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Lincoln Nebraska
With it dot to dot (6/12) o'clock if you installed the dist with the rotor under the #1 cap terminal yes it'd be 180 out.


live every 24 hour block of time like it's your last day on earth
Re: 180* off? [Re: midnite360] #1521077
10/21/13 06:50 PM
10/21/13 06:50 PM
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Posts: 11,543
chicagoland,usa
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buildanother Offline
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chicagoland,usa
Either turn crank one complete rotation, or place distrib in at #6 cyl instead. Either way.

Re: 180* off? [Re: buildanother] #1521078
10/21/13 10:35 PM
10/21/13 10:35 PM
Joined: Oct 2007
Posts: 947
Goodyear Arizona
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midnite360 Offline OP
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Goodyear Arizona
Thanks guys, Should I reprime the oil system before firing? IM sure all of the oil has gone back into the pan and I still need to break this cam in.

Re: 180* off? [Re: midnite360] #1521079
10/22/13 09:17 AM
10/22/13 09:17 AM
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Rick_Ehrenberg Offline
top fuel
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Posts: 1,688
Marlboro, NY, USA
Main point is to avoid excessive cranking at any cost - that's the cam killer. Be sure there is actually spark in both crank and run key positions (hook up another dist., just "lying there", spin shaft), pre-fill carb bowls with fuel, screw idle speed screw in a bit extra, static-time to 10 deg BTDC, shot of ether, air cleaner on. Let 'er rip, should start in 2 to 3 compression strokes. No idling below 2500 for 20 minutes.

Rick

This, of course, is not nearly as critical with a roller cam.

Rick

Re: 180* off? [Re: Rick_Ehrenberg] #1521080
10/22/13 09:24 AM
10/22/13 09:24 AM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
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Marysville, O-H-I-O
re-priming won't really do much. the oil pump is turning while the engine is cranking, so it is moving oil through the passages. and no amount of priming will put lube back onto the cam lobes/lifters, so hurry up and get that thing to fire!

Yes, dot to dot (crank at 12, cam at 6) is TDC firing #6.

easiest way to fix this...remove the bolt holding the distributor hold down in place. remove the distributor cap. lift the distributor up about an inch. spin the rotor in the distributor 180 degrees, and set the distributor back down into place, toss on the cap, and fire the engine up. then set timing and replace the distributor hold down.


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Re: 180* off? [Re: 70Cuda383] #1521081
10/22/13 01:10 PM
10/22/13 01:10 PM
Joined: Jan 2003
Posts: 32,923
Grand Prairie,Texas
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REinstall the hold down before starting to be on the safe side. You don't have to tighten it all the way but you don't want the distributor to pop up either.

Re: 180* off? [Re: stumpy] #1521082
10/22/13 01:21 PM
10/22/13 01:21 PM
Joined: Dec 2003
Posts: 531
USA
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540DUSTER Offline
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USA
put finger over number one spark plug hole,turn engine over until you feel compression,stop the crank at 10 to 15 degrees before TDC,pull dist. cap, rotor should be pointing at number one terinal,if not make it so,then turn dist so the reluctor wheel is in line with the pick-up sensor,should fire right up if you have spark and fuel.

Re: 180* off? [Re: 540DUSTER] #1521083
10/22/13 02:47 PM
10/22/13 02:47 PM
Joined: Oct 2007
Posts: 947
Goodyear Arizona
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midnite360 Offline OP
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Goodyear Arizona
We are going for round two tonight. I had class yesterday. Sunday when we went to fire for the first time we probably cranked it 2-3 times but they were really short so hopefully I haven't done any damage to the cam. At first we weren't sure if it was 180* because it did not really backfire. But Im glad it is something as simple as turning a distributer. I think I will be buying broken-in crate motors for any future projects. This Flat tappet cam break in in nerve-wracking.

Re: 180* off? [Re: 540DUSTER] #1521084
10/22/13 03:09 PM
10/22/13 03:09 PM
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
Quote:

put finger over number one spark plug hole,turn engine over until you feel compression,stop the crank at 10 to 15 degrees before TDC,pull dist. cap, rotor should be pointing at number one terinal,if not make it so,then turn dist so the reluctor wheel is in line with the pick-up sensor,should fire right up if you have spark and fuel.


Make sure there is fuel in the carb. and pump once or twice and hold the throttle at 1/8 to 1/3 open and stsrt it up, run at or above 1500 while breaking in the cam and make sure and set the timing right away with a good timing light


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 180* off? [Re: 70Cuda383] #1521085
10/22/13 04:02 PM
10/22/13 04:02 PM
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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MoparforLife Offline
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Upper Midwest
Quote:

re-priming won't really do much. the oil pump is turning while the engine is cranking, so it is moving oil through the passages. and no amount of priming will put lube back onto the cam lobes/lifters, .


Disagree with this statement. Priming pumps oil to the top end which in turn lubricates the rocker to valve contact points, and valve springs and returns to the oil pan though the valley over top of the lifters and cam lobes.

Re: 180* off? [Re: MoparforLife] #1521086
10/22/13 08:46 PM
10/22/13 08:46 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Lincoln Nebraska
Small block? Cut 2 strips of paper, 5" and 2" & a weak 9/16" long. turn the dampener slit to zero on the timing tab on #6 compression then back up the dampener slit (CCW) 5" & preoil the dr side then turn the dampener CW 1 turn + 5" till the timing slit is back at TDC (#1 compression) then go clockwise an addit'l 2&9/16" & preoil the pass side. Then go back CCW to TDC & a bit more to 15 BTDC & you're ready to time the dist to #1


live every 24 hour block of time like it's your last day on earth
Re: 180* off? [Re: 70Cuda383] #1521087
10/23/13 10:46 PM
10/23/13 10:46 PM
Joined: Nov 2006
Posts: 730
Nampa, ID
MadMatt Offline
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Nampa, ID
Quote:

re-priming won't really do much. the oil pump is turning while the engine is cranking, so it is moving oil through the passages. and no amount of priming will put lube back onto the cam lobes/lifters, so hurry up and get that thing to fire!

Yes, dot to dot (crank at 12, cam at 6) is TDC firing #6.

easiest way to fix this...remove the bolt holding the distributor hold down in place. remove the distributor cap. lift the distributor up about an inch. spin the rotor in the distributor 180 degrees, and set the distributor back down into place, toss on the cap, and fire the engine up. then set timing and replace the distributor hold down.




Hope I'm not hijacking the thread, but this seems to the perfect opportunity to ask a question. I just acquired a 69 Dart with a 318 and when I went to time it the timing mark on the damper seems to be 180* off with the timing light firing off the #1 wire. If I crank the timing mark around so that it points at TDC, and find that the rotor is pointed at the #6 wire can I just lift the distributor and rotate the rotor to # 1 position?


Some see the glass as half empty, some see the glass as half full. I just drink straight out of the bottle.
Re: 180* off? [Re: MadMatt] #1521088
10/23/13 10:47 PM
10/23/13 10:47 PM
Joined: Jan 2003
Posts: 32,923
Grand Prairie,Texas
stumpy Online content
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Grand Prairie,Texas
Yes.

Re: 180* off? [Re: MoparforLife] #1521089
10/24/13 08:02 AM
10/24/13 08:02 AM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
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Posts: 21,345
Marysville, O-H-I-O
Quote:

Quote:

re-priming won't really do much. the oil pump is turning while the engine is cranking, so it is moving oil through the passages. and no amount of priming will put lube back onto the cam lobes/lifters, .


Disagree with this statement. Priming pumps oil to the top end which in turn lubricates the rocker to valve contact points, and valve springs and returns to the oil pan though the valley over top of the lifters and cam lobes.






you can disagree all you want, but what kind of RPM does an electric drill turn against a bogged down oil pump that's fighting oil pressure? now, what kind of RPM does the oil pump turn when the crank is being turned by the starter?

oil flowing through the engine is oil flowing through the engine.

(remember, this engine has already been prelubed, it's not like he's cranking the starter away on a dry motor that still has air in the oil system and dry rocker arms)


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Re: 180* off? [Re: 70Cuda383] #1521090
10/24/13 08:11 AM
10/24/13 08:11 AM
Joined: Jul 2007
Posts: 2,554
Maryland
wally426ci Offline
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Posts: 2,554
Maryland
Make sure the cam is spinning. I had an idiot moment when we first assembled my stroker. Longer bolt in the water pump snapped the sprocket and I cranked with no fire.

Took a minute to figure that one out.

Re: 180* off? [Re: wally426ci] #1521091
10/24/13 07:10 PM
10/24/13 07:10 PM
Joined: Feb 2008
Posts: 992
Simi Valley, CA
MoparJ Offline
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Posts: 992
Simi Valley, CA
Might also want to make sure the drive gear that the end of the dizzy shaft plugs into is aligned correctly, or sitting in place....


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