| Re: [GMCnet] Transmission vacuum modulator leaking? [message #327035 is a reply to message #327034] |
Mon, 11 December 2017 23:57   |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
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To reinforce the previous posting about antifreeze in the cylinders. I am working on one that has 2.9% antifreeze in the oil. The pistons rings were rusted to he cylinder walls. Looking at it with a borescope (camera) showed just slight traces of rust on the walls right next to the pistons. I removed all plugs and squirted PB Blaster all around the piston tops 3 times in 7 days. It did not help. So I mixed up some Acetone and PSF and filled all cylindesr to the bottom of the spark plug holes and let it soak. I tried several times a week to turn the engine and nothing. Finally after three weeks of soaking and applying air pressure to the cylinders that had valves closed, I got the engine freed up.
My point out of all of this is If there is any chance of getting anti-freeze (and water) in those cylinders, I would make a special effort to soak down the tops of those pistons as much as possible. You could also go through removing plugs and filling cylinders with something like ATF or very thin oil. That is your choice but if it is going to be parked for an extended period of time, put something in it. I do not know if just fogging it is enough.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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