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Advice wanted on de-gunking intake and combustion chambers

thehackmechanic

By thehackmechanic,
in BMW 2002 and other '02

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jimk Grand Master

jimk

Posted
Posted
Jim, are you talking about Auto-Rx?

I had Marvel Mystery Oil sitting in the pistons for several months while the car was down. I removed, scrubbed, and reassembled the TB and intake plenums, and dumped Techron in the tank. I got the car started back up this weekend. It runs well, no obvious smoke. I'm going to follow c.d.'s advice and do the least invasive thing first -- drive it for a few hundred miles like that. But that'll only clean out what's in the fuel path. The inside of the head is completely brown with varnish and gum. On the one hand that's just cosmetic, but on the other hand, that varnish is probably everywhere. I'm generally hesitant use oil additives because of the snake oil reputation, but I did stumble upon Auto-Rx when working on a friend's Passat because of its reputation for de-sludging. I'm just afraid of damaging anything in the KFish pump.

No Auto-Rx in the fuel, It's only intended for the oil to clean the crankcase and piston ring grooves.

A radiator shop is a good place to take a leak.

 

I have no idea what I'm doing but I know I'm really good at it.

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