I can only get a couple hundred miles out of each set of plugs. What is the likely problem?
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Re: C-1 fouled plugs
What do the tip of the plugs have on them? gas residue or oil? Some of the C-1 carbs are notorious for making the car run too rich. -
Re: C-1 fouled plugs
First check if you have oil or gas on the plugs and if they are wet. If som you have mechanical issues that have to be fixed first. If not, and they are just crudded over, then you probably are not running the car hard enough.
Back when the C1 Corvettes were built, people drove them and oftne drove the heck out of them. Most were geared relatively low due to the lower torque of the 265 and 283 compared to what we are use to with the 350, so many were geared like 3.70 or lower. The 3.55 was common for the Powerglide cars.
This means they were used to revving higher than what we are accustom today with modern cars. However, this also keep the plugs hotter and burned off deposits more.
If you have changed to a higher rear gear for highway cruising like some have, or if you pokey around town like many do today, you could be creating your own problem if you are still running the stock plug.
In this case, run a hotter plug. If you should have an AC 44, then run an AC 45. You probably can't find an AC 45, so run an AC R45. Running the -S plug will help keep them cleaner, so an R45S is an option.
If your idea of a hard run is 40 mph to Dairy Queen, then you may have to go to an AC R46 even.
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you could do what people did 45 years ago, take it out and run that car through the gears. Bring that tach up to redline and let it rip down the road.
Tickets are your own responsibility, as is doing this in a place you are not likely to hurt any bystanders.Comment
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Re: C-1 fouled plugs
Hi Paul,
Can you post a little more information about the issue? What type of fouling are you experiencing? What engine option do you have and is it stock? How does the car run otherwise? What plugs are you running?
Generally, carbon fouled plugs (dry, sooty stuff on insulator) can be caused by an overly rich mixture or possibly an ignition problem (weak spark, cold plug range, etc).
Oil fouled plugs are usually caused by worn rings, valve guides, or possibly a leaky gasket allowing oil to get into the combustion chamber. Ifyou can do a leak down test you may be able to ID these as the cause.
If you can post more info I bet someone has had the exact problem and can give you a more exact answer.
Best wishes
JoelComment
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