Thread: 55.2-59 Oil Pressure line hole
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Old 11-10-2023, 03:29 PM   #16
mr48chev
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Re: Oil Pressure line hole

Quote:
Originally Posted by db56 View Post
Yes. The copper tubing is 1/8". The plug is 5/16"
Thanks
That hole has PIPE threads not straight 5/16 threads. If you ran a 5/16 bolt in and tightened it tight you probably ruined the threads. Finger tight ok though. Straight threads would have required a gasket behind he fitting when it was screwed into the block.
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