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Old 11-16-2005, 04:03 PM
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Timing issue, I think

Hey guys, I have a small block 350 with a comp cams 274xe cam, dart iron eagle 180 heads 64cc, edelbrock performer rpm intake and carb. The problem I am having is starting the car after is warm and has been sitting for like 10 minutes. Now if its cold or the engine was just shut off the car will start right away. but if it warm and has been sitting it will take a few key turns and some playing with the gas to get her started, now if tried both starting her without using the gas pedal and with both, giving it gas works better, her timing is at around 14-16. I heard to high of timing can cause hard starting but i dont think this is too high for this cam. just wondering if you guys have any ideas or suggestions thanks guys.

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Old 11-16-2005, 04:09 PM
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Sounds an awful lot like the starter has heat-soak issues.

If it is hard to start after sitting for a few minutes, that can be the issue.

I had the same problems with my 396 Chevelle and fixed the problem by usuing a remote solenoid. It is generally seen with an engine using headers.

14*-16* degrees initial timing seems high.

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Old 11-16-2005, 04:11 PM
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Does the engine actually crank ok after sitting hot, but just not start? Or does it begin to crank and stop or kick back? Depending on which it is, the causes could be very different.
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Old 11-16-2005, 05:17 PM
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Doc here,

It may also be Vapor lock issues, or a dying pump. you might want to do a pressure / volume test AFTER the pump both hot and cold.

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Old 11-16-2005, 05:34 PM
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Ran into this problem on one of my scissor lifts a few months back. What I found, after pulling the three hairs I had left on my head out, was the fuel line was too close to the exhaust. Its was fine when cold or to restart right away but the heat off the exhaust was actually boiling the fuel while it sat there and no fan running. Moved the line where it should be and it was ok. Just a thought from past experience.
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Old 11-16-2005, 07:38 PM
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wow gusy some great ideas i definately haved to check out the eat issue. I do have headers but i didnt think it was hot start because my starter seems to be cranking fine doesnt sound slow or anything. is there fix for this fuel boiling over except rerun the fuel line
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Old 11-16-2005, 07:57 PM
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Has it always done this or did you recently replace something? Kinda sounds like with you timming so advanced that you may be low on the vacuum. Put a vacuum gauge on it and see what you have? If I remember corretly you should have around 13 inches with the vacuum advance disconnected and pluged off. Just my 2 cents.
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Old 11-16-2005, 08:00 PM
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Are you actually giving it fuel to help it start (pumping the gas pedal) or simply holding the gas pedal down a bit to allow more air in as it cranks. You might be leaking fuel into the intake flooding the engine a bit after running it.
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Old 11-16-2005, 09:44 PM
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when im tarting it i pump it like once then hold it down until it starts to run then it tries to die so i give it some more gas and it satys running. i have had this problem since Ive had the engine. do u guys think a holley insulator gasket under the carb might help?
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Old 11-17-2005, 11:21 AM
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I just brought my timing down to 12 inital and 37 total, i hope this might help my problem
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Old 11-17-2005, 11:42 AM
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Personally, I don't think it is a timing issue. I'm leaning to the vapor lock problem. I would start with the fuel system.
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