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Oil pump cover seal

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Oil pump cover seal

Postby Bryan Cotton » Sat Jan 27, 2024 11:54 am

When I got rid of my external filter, I put in a normal oil pump and I bought a Gene Berg 239 pressure relief cover. I've had lots of leakage from the pump since. Per the manual (IIRC) I put the cover onto the pump with no gasket, though there are gaskets for it. I am going to try adding the gasket. Wondering if anybody has experience or wisdom to share regarding sealing the oil pump.

Should I eliminate this leak, I am sure there are others to protect the belly of the airplane, so no worries there.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Oil pump cover seal

Postby Bryan Cotton » Sat Jan 27, 2024 3:01 pm

I just had a discovery. My oil pump bolts were a touch long. I don't think I had good clamping on the pump and cover.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Oil pump cover seal

Postby Area 51% » Sat Jan 27, 2024 3:17 pm

Probably why the stock VW case comes with studs and nuts.
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Re: Oil pump cover seal

Postby Bryan Cotton » Sat Jan 27, 2024 3:31 pm

Area 51% wrote:Probably why the stock VW case comes with studs and nuts.

Yeah I can see that being better. I skipped the cover gasket and just used sealer. The original oil pump setup was fine. It had a thicker cover. Not sure how I missed that before.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Oil pump cover seal

Postby bvolcko38 » Mon Jan 29, 2024 10:12 am

Def need a gasket! 2 in fact! One for the pump one for the cover!
Bill Volcko XNS0068
Xenos A N68WV 99% flush rivets
Aerovee and Prince P-Tip
MGL Discovery Lite w/ Sandia STX 165R
V6
First hole 4/1/16
First flight 8/24/18
Phase I complete...finally!!!
Also flying a Challenger II since 1999
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Re: Oil pump cover seal

Postby Bryan Cotton » Mon Jan 29, 2024 10:19 am

bvolcko38 wrote:Def need a gasket! 2 in fact! One for the pump one for the cover!

The Aerovee manual says no gasket under the cover. That worked for me before, so I'm trying it again with my shortened bolts. If it doesn't work I'll use the cover gasket.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Bryan Cotton
 
Posts: 5489
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Oil pump cover seal

Postby daleandee » Mon Jan 29, 2024 4:37 pm

Bryan Cotton wrote:
bvolcko38 wrote:Def need a gasket! 2 in fact! One for the pump one for the cover!

The Aerovee manual says no gasket under the cover. That worked for me before, so I'm trying it again with my shortened bolts. If it doesn't work I'll use the cover gasket.


Be certain the plate is flat. One trick is to use some fine emory cloth on a sheet of glass to polish the surface of the cover.

Dale
3.0 Corvair/Tailwheel
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