1979 911 SC - Had oil analysis done- Says has Unburnt gas

[FinallyGotOne]

My 1979 911 SC has unburnt gas. So what the heck can I do about this? shoudl I run some BG 44 in my next tank, the fuel light just came on, so let me know if this will help at all.

[FinallyGotOne]

oh so I just googled some tech info. Seems seafoam is just as good as BG 44. But read also that if have to be careful blowing carbon deposits out of the car as it can get trapped in the oil filter?? What do you all think

[E Sully]

Sounds like the mixture is too rich, maybe a leaking injector.

[Joe Bob]

Would suggest a compression and/or leak down test.....sounds like you may have a ring issue.

[Ian Comerford]

Most important thing is that you get you fuel level correctly adjusted as excess (unburnt) fuel in the bore causes rapid wear as it washes the oil away from the surfaces. It's worth getting oil health analysis done every year or so as it can tell you what is wearing from the traces found, whether there is excess fuel, if the oil is the correct type and also whether or not the engine is ingesting dust which is a real engine killer.

Ian

[Joeaksa]

First thing I would check are your injectors. If any of your injectors are squirting excess fuel or not squirting it in a fine mist, then its not being burned properly, and like Ian mentions, it will mess up loads of things inside your engine. Fuel in oil thin's it and when the oil gets thin it does not lube properly.

Does your fuel injection system have a "cold start" injector? Am not really familiar with the CIS on the earlier models but if it does and that injector is not shutting off then that could be the cause.

[boyt911sc]

Pull out all seven (7) injectors including CSV. Inspect for uniform spray patterns (mist-like) and drips after they shut-off. They should not drip at all when not in use.

Tony

[Porchcar guy]

Question..where would someone have an oil analysis done...??

[E Sully]

Where's the best place to get oil analysis done?