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930 turbo scavenge oil pump fittings question

Hey everyone,

I've been searching just about errywhere and can't find a clue on either the in-housing thread spec, or the stock (maybe?) blue AN-looking fittings on the camshaft-driven turbo scavenge pump. I'm looking to get an in-line filter + check valve (post-pump) and want to make sure I'm sizing everything appropriately.

Anybody know off the top of their heads?

Old 04-17-2020, 01:17 PM
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If you're talking about the thread size on the scavenge pump itself, I believe the bottom fitting (intake) is an M14 and the top (discharge) is an M16. I had a lot of adapters from redoing the fuel and oil system, so it's a toss up. If no one corroborates me, Clewett Engineering sells a replacement scavenge pump designed for stock fittings, so give him a call and he can surely give you the answer.
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Old 04-18-2020, 12:56 PM
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You are correct. I just happen to be working on one. M14 x 1.5 on the suction side, and M16 x 1.5 on the pressure side.


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Originally Posted by jons911 View Post
If you're talking about the thread size on the scavenge pump itself, I believe the bottom fitting (intake) is an M14 and the top (discharge) is an M16. I had a lot of adapters from redoing the fuel and oil system, so it's a toss up. If no one corroborates me, Clewett Engineering sells a replacement scavenge pump designed for stock fittings, so give him a call and he can surely give you the answer.
Old 04-18-2020, 02:09 PM
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M16x1.5mm inlet (hollow bolt, bottom, from turbocharger scavenge pipe)
M14x1.5mm outlet (adapter fitting, top, to tank)
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Old 04-20-2020, 09:24 PM
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Does anyone have a part number or specs for the metal union fitting on the top of the pump that the cross over hardline bolts to?
Old 04-21-2020, 05:33 AM
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Porsche does not sell that fitting separately.
Union is M14 x M16 concave (oil pipe side of fitting).
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Old 04-21-2020, 08:44 AM
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Quote:
Originally Posted by TurboKraft View Post
Porsche does not sell that fitting separately.
Union is M14 x M16 concave (oil pipe side of fitting).
Thank you Chris!
Old 04-21-2020, 12:33 PM
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Russell Adapter Fittings 670520 & 670530

https://www.summitracing.com/parts/rus-670520

https://www.summitracing.com/parts/rus-670530

Good Luck!
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Old 04-21-2020, 04:03 PM
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Thanks Bill!!
Old 04-21-2020, 04:41 PM
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Quote:
Originally Posted by TurboKraft View Post
Porsche does not sell that fitting separately.
Union is M14 x M16 concave (oil pipe side of fitting).
Hmm - I bet Len (BoxsterGT) would know where to get them - and could make you a replacement line with it on; he seems to have sourced just about everything else fuel or oil line related...
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Old 04-22-2020, 05:09 PM
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Quote:
Originally Posted by spuggy View Post
Hmm - I bet Len (BoxsterGT) would know where to get them - and could make you a replacement line with it on; he seems to have sourced just about everything else fuel or oil line related...
Thanks, I've got all the replacement factory lines already, I just wanted to get a nicer/new fitting.
Old 04-22-2020, 05:51 PM
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Here are some "nicer/new" fittings.....



Most adapters of this type use a Copper Crush Ring at the component and a Male Cone at the Fluid Line or Hose.

I am happy to help given the thread sizes needed.

Len.Cummings at verizon.net


Old 04-23-2020, 03:35 AM
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