Re: Are ATI Super damper timing marks wrong?
[Re: racerx]
#1041457
07/29/11 09:52 AM
07/29/11 09:52 AM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
looking at the engine from the front of the car, the timing tab is on the left hand side. I've never seen a right side timing tab cover before.
x2 Do they make one?
I think the later year 440's had them???? the water pump discharge was flip flopped
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Re: Are ATI Super damper timing marks wrong?
[Re: Cab_Burge]
#1041463
08/01/11 11:08 PM
08/01/11 11:08 PM
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Joined: Jan 2003
Posts: 1,436 Oklahoma City OK
Cudajon
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,436
Oklahoma City OK
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Quote:
Never seen a bad ATI Damper. I'd put heavier springs on the dizzy and if its a MSD put the rings in thier that stop the advance. A normal mechanical advance is about 25 degrees. With 10 degree advance on the dizzy at start and add 25 degrees for a 35 degree total. When the advance comes in is a tuning decision, mine is all in about 1400 rpm. I'm betting thats the problem. If you have 30 degrees of mecahnical advance that would mean 20 degrees at cranking. My hot rod would buck and kick back with that much initial advance. So you may have a lot more mechanical advance. An engine will run with 50 degrees of advance but not well.
A brand new distributer will probably fix it.
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Re: Are ATI Super damper timing marks wrong?
[Re: fullmetaljacket]
#1041467
08/03/11 10:49 PM
08/03/11 10:49 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
yeah, I know, but the current distributor was modified over 20 years ago and the slots were welded and all, Even its builder has forgotten what he exactly done to it,so I'm starting with a new one since its a borrower and then I can adjust all I need to get the sweet spot.
I assume it runs best at 50 total... if this is correct you can put in all the dist you want and it wont change... I would look at the valve timing... since you know the damper is 0 you can use that as the degree wheel and put a indicator on the retainer for a quick check
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Re: Are ATI Super damper timing marks wrong?
[Re: fullmetaljacket]
#1041471
08/09/11 01:19 PM
08/09/11 01:19 PM
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Joined: Oct 2005
Posts: 976 ontario canada
mac56
super stock
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super stock
Joined: Oct 2005
Posts: 976
ontario canada
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Quote:
Do you guys think I might have bent a valve with the piston stop turned in all the way while spinning the engine by hand with no spark plugs installed? I'm not sure how much travel is in the exhaust/intake valves when engine is being turned over.
Do a compression test.
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