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Old 03-19-2019, 11:50 AM   #1
iride813
 
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Brand new Borg Turbo leaking oil into compressor.

The s475 I put on the drag truck is leaving a film of oil in the compressor after running. I started with a -10 drain and was told that was the problem so I went to a -16 and now it’s not as bad I don’t believe. However it is still letting pushing oil out the seals. They look great when I tore it all apart everything looks like it hasn’t been ran. My truck does run pretty high oil pressure and has a lot of blow by due to ring gaps etc. warm I idle about 60-70 and when on the throttle it pegs a 100lb gauge. Any help would be appreciated!


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Old 03-19-2019, 12:44 PM   #2
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Did you eliminate the factory oil pressure regulator in the oil filter housing? I've seen one truck spit oil seals on its triples when using a remote mount oil filter housing without the OEM pressure regulator.
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Old 03-19-2019, 12:46 PM   #3
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Quote:
Originally Posted by joefarmer View Post
Did you eliminate the factory oil pressure regulator in the oil filter housing? I've seen one truck spit oil seals on its triples when using a remote mount oil filter housing without the OEM pressure regulator.


No I didn’t. Not that I’m aware of. I’ve read some places saying with higher pressure to run a restricter in the feed line but was unsure don’t want to burn up a turbo either


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Old 03-20-2019, 11:10 AM   #4
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May want to contact the shop that sold the s475 and see what they recommend for restricter fitting. I haven't used them on my builds, but I haven't seen that much oil pressure either.
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Old 03-20-2019, 07:13 PM   #5
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You shouldnt need a restrictor. Likely a boost leak, not enough CFM through the filter, or blowby restricting drainage, or an improperly sized drain adapter. We see 100+ psi through many turbos pulling with no issues. Turbos dont have "seals" they have piston rings. They dont go bad that fast.
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Old 03-20-2019, 07:21 PM   #6
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You shouldnt need a restrictor. Likely a boost leak, not enough CFM through the filter, or blowby restricting drainage, or an improperly sized drain adapter. We see 100+ psi through many turbos pulling with no issues. Turbos dont have "seals" they have piston rings. They dont go bad that fast.


Truck does have quite a bit of blow by. I’ll try add some more venting first before anything else. It is a lot less now that I’ve went to a bigger drain. However it still has a slight film. Does haze pretty heavily through the ccv that’s on the truck now.


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