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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-27-2004, 05:46 PM   #21
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my bad. i was thinking of my tempo, and thought they were all kinda the almost same
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Old 10-27-2004, 05:48 PM   #22
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Don't worry about it. I edited my post, not to sound so rude too.


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Old 10-27-2004, 07:31 PM   #23
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Quote:
Originally Posted by rjolly87
yeah, really easy. its as simple as taking out the engine, pulling off the heads, and dislodging the old thermostat with a suitable explosive. no big deal
Thats friggin hilarious!!
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Old 10-27-2004, 11:15 PM   #24
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Every time I flush the engine and change the antifreeze I pop the thermostat. Last time I did three of ours in the same day. Can be a bear if someone played Godzilla on the bolt in the past or hasn't been off in fourteen years. Is no need for the bolt to be any tighter than a spark plug or oil filter since the sealing is by an O-ring. Bolt just holds in place, does nothing to stop leaks.

Secret is to clean the mating surfaces rigorously and to remove/replace the housing smoothly. If the housing sticks after removing the bolt I put the butt end of a long screwdriver into the housing and use that to rotate the housing out..

To replace, I seat the housing first again with a long screwdriver on each side, then add the bolt to hold it down. If everything is clean and lubricated, it just slides into place.

I replace the O-ring every time (99 cents at Pep Boyz, grab a few) and lube with anti-seize, lower gasket was just added because of a few complaints of insufficient heat and does nothing to stop leaks.
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