Engine has no power?? - Team Camaro Tech
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post #1 of 10 (permalink) Old Oct 5th, 06, 06:18 PM Thread Starter
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Engine has no power??

I am finally ready to get my car on the road except for one problem. I am going to be using this as a daily driver to school and work. Basically i replaced most of the ignition items: coil, plugs, wires, rotor,points, conderser,vaccum advance and a few other things. I rebuilt the carb and cleaned the carbon off the top of the pistons. I cleaned and painted both manifolds and replaced all hoses and coolant.

Here is my problem.
The car basically has no power. Whenever i hit the gas, soft or hard it just dies. It just drains out of power. It gave me a backfire once, so i set the timing and dwell again. It still is at a loss for power. It seems to be running hot but i am not positive. My thermostat is working correctly, but the colant doesnt seem to cool down very quick at all, even after a 5 minute slow drive. I only had time to take one plug put and it was pretty black. I would say i have 2 hours of run time on them. Probably 4/5th's of that time being at idle. One thing i found it that the car runs slightly better without the air filter on. My airfilter is clean but for some reason it has a touch more power with it off.
Does anyone have an idea on what the problem could be??

This is for my 64 malibu with a L6 in it.
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post #2 of 10 (permalink) Old Oct 6th, 06, 04:45 AM
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Re: Engine has no power??

sure sounds like carb is too rich,but what is all your settings? Idle mix,timming , what is vacume reading?
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post #3 of 10 (permalink) Old Oct 6th, 06, 06:37 AM Thread Starter
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Re: Engine has no power??

ari screw was out pretty far. The plugs were black so i adjusted the air screw in like 1/4 of a turn. The vaccum is i remeber correctly was only like 4.
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post #4 of 10 (permalink) Old Oct 7th, 06, 09:34 PM
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Re: Engine has no power??

Advance the timing maybe? Perhaps you have the initial ignition lead too low. Forget a timing light--start the engine and advance the distributor by hand and listen to the engine...if it runs faster and seems to smooth out you may have found your culprit. Retarded timing would make it backfire, make the engine sluggish and blacken the plugs. It would also give awful vacuum readings like you have. With no more to go on that's my 2 cents. Good luck!
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post #5 of 10 (permalink) Old Oct 8th, 06, 04:33 AM
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Re: Engine has no power??

Here's another country heard from. You should have 15 inches of vacum @ idle easily if you have a stock cam. so put a timing light on it and a vacum gauge. Bump the timing up until your vacum peaks see what the timing reads, then retard it 2 degrees, you dont want anymore than 15 degreess initial timming and 40 degrees total mechanical timing ( vacum advance disconnected. If the timing is correct then you can check and make sure the accelorator pump is working in the carb. Check these and post how you make out and we will go from there. Good luck
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post #6 of 10 (permalink) Old Oct 8th, 06, 05:28 AM
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Re: Engine has no power??

You said you're using points......... Did you check the dwell angle? After that, did you correctly set timing at idle with vacuum hose disconnected?

Really sounds like something basic here.

Fuel system OK? Is fuel filter new? If not, replace with new one. Also, replace any pieces of rubber fuel line. They get cracks and sometimes will suck air instead of fuel.

Double check the firing order.

Big vacuum leak would also cause troubles as you describe. Maybe you put in the wrong PCV valve? Leaky intake manifold sealing. Bad vacuum line.

Was this engine running good BEFORE you started messing with it? Did you do a compression test?

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Last edited by Chevy-SS; Oct 9th, 06 at 07:54 AM.
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post #7 of 10 (permalink) Old Oct 8th, 06, 05:54 AM
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Re: Engine has no power??

You also said you cleaned the carbon off the top of the pistons? So if you pulled the head did you lash the valves correctly? The vacum gauge is a great tool. If you hook it up and the needle is not steady and pulses this would indicate a tight valve. Check it out and post results. Good luck
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post #8 of 10 (permalink) Old Oct 8th, 06, 05:55 AM
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Re: Engine has no power??

I don't recall the firing order on an inline six, but 18436572 ain't it...lol.

Agree on the timing. Just grab ahold of the distributor and give it a twist, think it's still counter clockwise to advance like a V8, but whatever, if it slows down, twist it the other way.





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post #9 of 10 (permalink) Old Oct 9th, 06, 07:55 AM
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Re: Engine has no power??

Not payin' attention. Edited post. thanks..........................

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post #10 of 10 (permalink) Old Oct 9th, 06, 08:29 AM
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Re: Engine has no power??

L6 Firing = 1-5-3-6-2-4

Ageed, check dwell first, 31*-34* (0.019" gap)
Check timing, 4* BTDC (auto), 0* TDC (manual), personally, I'd go more advanced.
Use vacuum gauge, and adjust mixture screw for highest vacuum reading. Stock cam should give 17"-20" of vacuum.

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