[jrbrown_143]

This lsat weekend I moved from Hershey, PA to Albuquerque, NM. The drive went well until I arrived in ABQ and my 968 started making a lot of smoke and lost power. I stopped and opened the hood to find that the spark plug had completely blown out of the engine! It had damaged the threads on the engine and I couldnt get the plug to go back into the engine. Had it towed to German Motorwerks where they "hela-coiled??" the spark plug and reconnected the distributor wires. Unfort, the car is still smoking horribly. The cylinder is misfing and there is blue smoke coming out the exhaust as fast as the BP oil spill! Any ideas as to WTF is going on?? German Motorwerks is still trying to figure out what the prob is...

Jon

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[flash]

that's not good - stop driving!!!

blue smoke is oil - sounds like something let go in that cylinder - you can bet the head is going to be coming off

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[jrbrown_143]

Yeah, thats what I was expecting. The car is parked in the shop. No driving until the prob is fixed!!
Was going to have the head redone anyways for supercharging, so I guess its not a total loss [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

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[968Syncro]

Wow, that is scary. I agree with the others, something inside that cylinder is bad. I have a timecert in one spark plug hole in my Vanagon, same general thing as a Helicoil. It seems to me that a timecert is better technology for a spark plug than a helicoil. For both, the damaged threads in the cylinder head have to be drilled out so the timecert or helicoil can be installed. I always wondered how they prevent little metal chips from dropping into the cylinder while doing this process. And even when the spark plug blew out, maybe some little metal chips fell down into the cylinder.

Roland

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[Lear35A]

Ouch. Years ago my wife's GM product blew out a spark plug while she was driving it. In that case it was a cracked head. From a crack or blown head gasket you had to have sucked a lot of water and/or oil into the combustion chamber to build up the pressure needed to blow out a spark plug. I am sorry.

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[bob blackwell]

Jon, if German Autu doesn' fix it for you, call my favorite Porsche mechanic here in Albuquerque: Russ Kelso at PMCI 898-9864. I have me 968 engine for sale
("ol blue" was a total loss.
Give me a call if I can assist. 898-0775 (cell) 505 506 6807 Bob Blackwell.

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[jrbrown_143]

Well, the shop has had my car for a week and now they think that they have the solution...a broken fuel injector. They say that the fuel injector is dumping straight up fuel/oil into the cylinder and likely caused the spark plug to be blown out the engine. The injector is being replaced ASAP. Hopefully this will be all over soon and I can get on with supercharging!

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[flash]

sounds odd - blue smoke is oil, not fuel - fuel is black smoke

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[Lear35A]

sounds odd to me too. however, if that is the cause, get the oil changed too. you could have diluted the oil with gas.

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[rhudeboye]

I've never heard of a fuel injector breaking. What might have of caused it?

A little worried as my injectors are orig. I use injector cleaner about twice a year but other then that I dont think about them.

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[flash]

you can break an injector if something breaks loose inside, but it usually has to be pretty bad

i would highly recommend a leak down test before firing up the engine

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