Question on Engine MisFire - Team Camaro Tech
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post #1 of 8 (permalink) Old Dec 20th, 00, 04:29 PM Thread Starter
Join Date: Oct 2000
Location: Stockton,Ca & Omaha,NE
Posts: 11

As my car is my pride and joy, it would be fitting for me to take my senior pictures with my car in the background. Since my picture appt. is tomorrow, I decided to give it a wash.
Well after it was dried off, I thought I would take it for a spin around the block.

When I gave it full throttle, it sputtered and then went. This was really surprising to me since my car never mis fired on me before. Right after it missed, I would get off the gas and then continue to give it quick stomps and everytime it would miss.

What's up with this?? The plug wires were just replaced a couple of months ago. The plugs were replaced during the summer but when I pulled them a couple of weeks ago, and one was fouled up. It was off the front cylinder on the passenger side. The white electrode was all black and the top rim as well.

What do you guys think?? By the way, its has an HEI ignition.


68 Camaro
327 SB, TH 350
3.73 12 bolt posi
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post #2 of 8 (permalink) Old Dec 20th, 00, 04:39 PM
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Location: Monroe, WA, USA
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well did you wash the motor off???? if you did i bet you have watter in the dis. or the carb. take look at them and dry them off if wet then you will be fine.
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post #3 of 8 (permalink) Old Dec 20th, 00, 06:44 PM
David Pozzi
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Undo the cap and leave it off for an hour or two. It would be best to do this where and when the sun can shine on it.
Sometimes water can get inside the distributor when you wash the engine. It will steam up and condense near the contacts in the dist cap.

Also the water can get in the spark plug boots. If you are seeing black rings around the outside of the plugs on the insulator between the boot and plug base. It's caused by arcing to ground.
Make sure your plugs aren't gapped over .045" some early cars had a specification of .065" but the factory reduced it to .045 for all hei systems to prevent arcing to ground.

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post #4 of 8 (permalink) Old Dec 20th, 00, 11:02 PM Thread Starter
Join Date: Oct 2000
Location: Stockton,Ca & Omaha,NE
Posts: 11

Just to give you guys better background, I did not wash the engine. Only the outside of the car. But I was thinking that maybe some water did get on the dist since I do have a cowl induction hood??

After cruising around all night the engine didn't mis at all; even when I spun it up to 5k.

Any ideas on what's going on here??

68 Camaro
327 SB, TH 350
3.73 12 bolt posi
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post #5 of 8 (permalink) Old Dec 21st, 00, 03:00 AM
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Next time you wash your car, put a baggie over the distributor cap. It sounds like some spray got in through the cowl induction opening. I have the same setup and the cap is in a direct line of fire!
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post #6 of 8 (permalink) Old Dec 21st, 00, 05:38 AM
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Location: McKinney, Tx
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Sounds like moisture under the distributor cap to me. I've had several cars that would do the same thing when they got washed, but a little heat would fix it right up. I don't think it's anything to worry about, just be careful when washing it. The garbage bag over the carb and distributor is always a good idea.......KZ

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post #7 of 8 (permalink) Old Dec 21st, 00, 06:00 AM
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Location: M.D.
Posts: 304

I agree with the above posts
I had a 72 that did the same thing every time I washed it ,if your at a car wash that has the airblowers to dry your car with it works great under the cap too.

stock? 67
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post #8 of 8 (permalink) Old Dec 23rd, 00, 09:42 AM
Join Date: Apr 2000
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I clean and dry my distr. cap with a shot of starting fluid that I keep handy for starting cantankerous chainsaws, lawn mowers, etc..

Just air dry for a while til the fumes are all gone. (Til you can't smell the ether anymore - for safety's sake). pdq67

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