EA81 Oil pump seal dimensions

[Buttergoose]

Hello all! I can't seem to find any kits that ship to Sweden for a reasonable price and I haven't been able to find the dimensions of the o-rings anywhere. I tried my local Subaru dealer but they don't respond to my emails.

Is anyone sitting on that info? Also, I've read about o-ring material being important for longevity, what would be a good choice?

All the best, Matt

Edited November 27, 2021 by Buttergoose

[moosens]

Which pump ? EA63/71 EA81 EA82 or ? 
Edit - I just opened my eyes wider after I inserted all that info. 

for the EA71 later edition I see 47.5x 2.0 for the large O ring that goes over the pump rotor. 
 

For that same era EA81 you have 49.7 x 3.5 as that same O ring. 
 

Then there is the smaller O ring for the spring and ball valve which is 15.5 x 1.5 for both 1600 and 1800’s

Will check EA82 for you soon. 

Edited November 27, 2021 by moosens

[moosens]

Hold the phone ! I just looked at another page of the same manual and there are different figures 38.2 x 3 for the large one and 14 x 2.4 for the small one IF EA81. And if it’s an older EA71 it’s got a paper pump to body gasket and a small O ring of 10.8 x 2.4

The manual I’m using now is for 1982 1600/1800

 

[moosens]

The EA82 pump has the “Mickey Mouse” gasket and an O ring of 45.7 x 2.4

[moosens]

Also the Seal not O ring on the EA82 pump which is an 18x30x9 for the record. 

[Buttergoose]

Sorry for the very late reply, I put the whole thing on hold. Then my water pump died after I tensioned the belt and now that it's fixed I was reminded that it leaks oil. So now I've ordered the o-rings.

What thickness is the gasket, do you know? Either way, thanks a lot for looking up the dimensions!

I found some OEM numbers on my search by the way. If someone else is looking in the future, maybe this helps.

EA81 Oil Pump O-ring part numbers: (dimensions in MM)

806915050 (15,5x1.5)

806949030 (49.7x3.5)

806914020 (14x2.4)

806938020 (38.2x3)

Body Gasket:

424207000