What size seal for engine oil drain screw?
Thread Starter
Joined: Oct 2002
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From: San Luis Valley, Colorado
What size seal for engine oil drain screw?
The title sais it all 
does anyone know what size the seal of the drain screw is on an 89 Firebird TBI ? Nobody seems to know here in Switzerland and I don't want to have to drain the oil, then check size and then wait till someone has the right size
thanks alot for your help!
Cedric
does anyone know what size the seal of the drain screw is on an 89 Firebird TBI ? Nobody seems to know here in Switzerland and I don't want to have to drain the oil, then check size and then wait till someone has the right size
thanks alot for your help!
Cedric
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I believe the '89 still used the 1/2-20 UNF plug.
EDIT:
If you cannot find an appropriate 1/2-20 cap screw and gasket, try to get a Dorman/Motormite 65202, 65245, or 090052 plug kit. The 65202 is preferable, since it includes the pilot point like the factory plug. They are also available in oversizes for damaged oil pans.
EDIT:
If you cannot find an appropriate 1/2-20 cap screw and gasket, try to get a Dorman/Motormite 65202, 65245, or 090052 plug kit. The 65202 is preferable, since it includes the pilot point like the factory plug. They are also available in oversizes for damaged oil pans.
Last edited by Vader; Apr 30, 2005 at 12:15 PM.
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