Carbon on the cylinder

[Jumper]

Ok theres a 1st generation eagle talon for sale by a guy in my town now it has the fast motor and its auto. Good for a new driver. Now the guy says that he may think theres carbon on the cylinder. So could someone tell me how about i may fixing this problem if i buy the car.

 

[BOBS90TURBO]

Assume the worst, do a compression test,(tester is $20 at autozone), let it run at idle for a long time, make sure it does not heat up, look for white smoke out the tailpipe, check the engine oil for water or vise versa.
What is the car doing that makes him say it has carbon on the piston, sounds kind of fishy to me, have it looked at if you are not sure, unless it is a great deal(like$500-$600).

 

[andymoraitis]

I think Bob's given you some sound advice as far as doing a compression test since this will tell you how well the motor's sealing. Carbon in the cylinders is a fairly common occurence. Our motors are set with a 9.5:1 air/fuel ratio (very rich) to keep them safe under boost and this can contribute to carbon buildup. What's more important is how MUCH carbon has been built up. There's a couple of little things you can do aside of compression testing to verify the problem and/or reach a solution.

Pull the plugs and take a look at them. Blackness will verify a rich condition and in many cases, carbon fouling. To remedy this, you can reference a number of threads on tuners by running a can of Seafoam through the vacuum line from the BOV to the intake manifold. In many instances, this will help restore some of your lost compression and literally steam clean the internals while removing deposits. I've done this a few times even though I have excellent compression and it works well.

You can find a bunch of threads on Seafoam here:

http://www.dsmtuners.com/forums/search.php?searchid=1251937

Also, let us know the results of your compression test.

Andy

 

[Jumper]

Well yes the car is 700 bucks. The man also says that he has a new starter and head on it. My dad thinks though since the head was just put on that there wouldnt be carbon on the cylinder. He thinks that its a valve or and injector got broke inside it. Now this car is non turbo auto if that helps anymore

Edit: The car doesnt start or run for that matter