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Old 01-01-2021, 09:07 PM   #1
DetroitIron
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Winter project...pulled it out

Decided on a winter project to fix the oil leaks and maybe freshen the engine with some paint. The largest source of oil leaking was from the rear of the intake..guessing either the rtv gave way or the infamous oil sender? The dizzy gasket disintegrated as well

Seems like these copper? tube sender ports are always seized and like to break when removing. I wish I didn’t have to touch it, but seems like now is the time having the engine out to replace. I have it sprayed and will channel my patient self, but any tips are appreciated. Btw the oil pressure gauge works, but I’m ready to replace it all.
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1985 Chevy Scottsdale K20 350 with 700R4 running 3.42 gearing aka "The Honey Badger"
1993 Silverado C3500 Ext. Cab Dually 6.5 turbo diesel
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Old 01-02-2021, 11:23 AM   #2
Corts60
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Re: Winter project...pulled it out

Most likely the rear seal on the intake was bad. Very common. As for the oil sender port, that pipe is 1/8" NPT. Just be patient when removing it and it shouldn't break off in the block unless it's severely corroded. Judging from the pics, it looks a little pink which means it has lost some of it's zinc content and may be brittle. If it breaks off in the block, just get an ez-out to remove the remaining threads. Try to keep that oil passage as clean as possible!

Also, do yourself a favor and replace that piece of pipe even if it comes out in one piece.
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Old 01-02-2021, 09:27 PM   #3
DetroitIron
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Re: Winter project...pulled it out

Quote:
Originally Posted by Corts60 View Post
Most likely the rear seal on the intake was bad. Very common. As for the oil sender port, that pipe is 1/8" NPT. Just be patient when removing it and it shouldn't break off in the block unless it's severely corroded. Judging from the pics, it looks a little pink which means it has lost some of it's zinc content and may be brittle. If it breaks off in the block, just get an ez-out to remove the remaining threads. Try to keep that oil passage as clean as possible!

Also, do yourself a favor and replace that piece of pipe even if it comes out in one piece.
Will do and thank you!
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1985 Chevy Scottsdale K20 350 with 700R4 running 3.42 gearing aka "The Honey Badger"
1993 Silverado C3500 Ext. Cab Dually 6.5 turbo diesel
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