projekt_x605

My 83 GSL SE 12A has been parked all winter, so I decided to start her up today seeing as we finally got some decent weather. I had it plugged in for about 2 or 3 months and it started up just fine. (I checked all fluid levels before starting and everything was normal) After starting I opened the hood and the engine sounded like it was making "clacking" noises, but they weren't too bad. So I let her warm up almost till choke kick off, and the noises went away. I revved her up to 5000 RPM, and on the rev down just after I let go of the pedal there was a huge backfire and it kicked probably about 1/4 - 1/2 a cup of carbon out the tail pipe. I did it a few more times to get some more out, and it finally settled down after 4 or 5 backfires. I know my car needs a tune up, but I just wanted to start it because it has been so long (for me, and the car... but mostly just me!) I just can't wait till all this snow goes away so I can get her all tuned up, and put her back out onto the streets. I have done the "de-carbonization trick" because it wouldn't run last year. It brought her back to life and I did it again just before putting her into storage. Anyway I was just wondering if this is normal? Should there be a considerate amount of carbon kicked out after sitting for a while? I don't remember there being this much carbon kicked out last time I did the d.c.t. Your help is greatly appreciated.

SleepeR1st

iTrader: (1)

It more than likely came from the carbon caked on the inside of your exhaust. If you really had 1/4-1/2 cup of carbon coming from your engine, you'd have serious problems i would think.

projekt_x605

I forgot to add that my engine has 250K, I know it's alot which could explain the high carbon content. And seeing as I've already brought it back from the dead once, how long do you think till I'll need a rebuild? Is there anything else I can do to prolong the life of my 7? With that much carbon being caked into my exhaust would it be better to get a new system or is there a way to clean it out somehow? The car came with an aftermarket header, not sure which brand.

justint5387

iTrader: (1)

GSL-SE 12A? I don't believe they made hat

djessence

And they didnt have Se's in 83 so im assuming he meant 83 GSL with the 12A

trochoid

iTrader: (6)

The backfires loosened the carbon buildup in the exhaust pipes. If it continues to run normally, keep driving it. With the mileage, I would drive it till it died and expect to replace the rotor housings and maybe all 4 bearings, along with a full rebuild kit.