Does your 350 small block do this when warm?
Safety Car
Joined: Feb 1999
Posts: 3,631
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From: Fountain Hills AZ
Re: Does your 350 small block do this when warm? (Rick Church)
How much initial advance are you running? Too much will cause "kick back", which is when the early ignition results in too much resistance to the upward movement of the piston and actually tries to force it back down.
Instructor
Joined: Jun 2003
Posts: 231
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From: Frisco TX
Re: Does your 350 small block do this when warm? (Rick Church)
Do you still have all the sheet metal heat guards around your starter? I'm just pissin in the wind, but it could be the notorious Chevy hot start problem...
:skep:
[Modified by WPEDirect, 10:49 PM 7/12/2003]
:skep:
[Modified by WPEDirect, 10:49 PM 7/12/2003]
Safety Car
Joined: Jun 2002
Posts: 4,844
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From: Pearland TX
St. Jude Contributor
Re: Does your 350 small block do this when warm? (Rick Church)
Rick,
That would have nothing to do with 100,000+ miles on the engine as if anything you have probably lost some compression. We've all run across this with our cars over time. I would look at the starter or the timing as was suggested above.
That would have nothing to do with 100,000+ miles on the engine as if anything you have probably lost some compression. We've all run across this with our cars over time. I would look at the starter or the timing as was suggested above.
Instructor
Joined: Jan 2003
Posts: 222
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From: Ventura CA
Re: Does your 350 small block do this when warm? (bgrice)
Retard the timing just a little... like mentioned before, it's igniting early and the starter has to push it through kindof a backwards power stroke. It's not a problem with the starter... at least this is what I think.
Team Owner
Joined: Sep 2000
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Re: Does your 350 small block do this when warm? (Rick Church)
I agree that it may be too much intial timing. I had a non-Vette that was hard to turn over when it was warm. When I checked the timing, I found it was WAY TOO MUCH. After reducing it back to factory specs, I don't have that problem anymore.
Safety Car
Joined: Sep 1999
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From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Re: Does your 350 small block do this when warm? (Rick Church)
Mine did the same thing. Turns out it was heat soak in the starter. Had the starter rebuilt and it turns over fine now when when warm. :chevy
Le Mans Master
Joined: Sep 2000
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From: Westfield Indiana
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Re: Does your 350 small block do this when warm? (Rick Church)
Mine only does it on very short trips. If I drive 10 miles or less, stop to get gas, it will do that when I try to restart. However, I could drive all day and be out of it a few minutes and it starts right up. I always let it warm up before driving anywhere so it's long since been at operating temp, even on the short trip.
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Drifting
Joined: Nov 2002
Posts: 1,665
Likes: 1
From: Ontario
Re: Does your 350 small block do this when warm? (Rick Church)
If you do a forum search you will find that a lot of people say that the dreaded heat soak problem is a myth, usually the problem is caused by some other factor like dirty electrical connections.
Le Mans Master
Joined: Mar 2002
Posts: 7,456
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From: Coming home from Luckenbach Texas
Re: Does your 350 small block do this when warm? (Boofers)
OK, OK...heat soak in the solenoid! I fixed mine with a new solenoid and a shorter spring.
But in Rick's case, I vote for timing :yesnod:
But in Rick's case, I vote for timing :yesnod:
Melting Slicks
Joined: Sep 1999
Posts: 2,738
Likes: 1
From: Deep in the Heart of Dixie Alabama
Re: Does your 350 small block do this when warm? (Rick Church)
Rick,
My years of experience say it is your starter. Heat soak. When its hot it doesn't want to work. When it is cold it is fine.
There is a started heat shield you can buy or just replace the started with a good heavy duty one. I bet your problem will be resolved.
My years of experience say it is your starter. Heat soak. When its hot it doesn't want to work. When it is cold it is fine.
There is a started heat shield you can buy or just replace the started with a good heavy duty one. I bet your problem will be resolved.
Melting Slicks
Joined: Sep 1999
Posts: 2,738
Likes: 1
From: Deep in the Heart of Dixie Alabama
Re: Does your 350 small block do this when warm? (Boofers)
Heat soak is not a myth. It is a reality. I have experienced it in many C3's. I have confronted the problem and solved it on at least 8 different Corvettes.
There are a lot of Corvette myths, like the law of the 4's and the curse of the 68, but this is not one of them.
There are a lot of Corvette myths, like the law of the 4's and the curse of the 68, but this is not one of them.
Drifting
Joined: Nov 2002
Posts: 1,665
Likes: 1
From: Ontario
Re: Does your 350 small block do this when warm? (bamavettes)
There are a lot of Corvette myths, like the law of the 4's and the curse of the 68, but this is not one of them.
