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Where did the compression go? S70 1998

posted by  BobL on  Thu Sep 18 12:33 CST 2014
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last visit: Wed Oct 22 21:55 CST 2014
[RELATED]

Amazing! (I dropped 3 squirts of SAE 30 to cylinder 1 with a pump oil can, to test if I could improve compression. I was just cranking by wrench and I felt no improvement.) I moved onto the cranking method.

I removed the 20 amp fuel/ignition fuse and cranked for 30 seconds at 1/4 throttle. I observed the oil pressure indicator clear at about 20 seconds. I continued cranking to the prescribed 30 seconds. I rested it a few minutes, and I reinstalled the fuse. AFter that, it started readily and rather normally, Wow! What an education!

Here is my recipe for flooding my (new to me) FWD platform: The last day of my 5,600 mile summer travel I drove 900 miles, 16 hours, Knoxville to Norman, OK. The nose and headlights were covered in bugs. We came under a long steady rain, so I backed the cold car into the driveway to loosen the bugs. In the evening, I started it stone cold, rolled into the repair-bay and left it overnight. In the morning, I experienced the sudden and surprising no start, low compression cranking after driving 5.600 trouble free, no oil consumption, no loss of coplant miles.

Thanks to all, and brickboard.com. for guiding me to a solution.







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