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Guest Message by DevFuse
 

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To Buy new or replace the seals, Oil pump?


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9 replies to this topic

#1 oregonloyale

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Posted 17 August 2003 - 10:04 AM

Ok all you ea82 guys out there....
After all this tinkering with noisy valve train , I have finally narrowed it down to , and I hope , its the oil pump airation.
I dgreased the entire undercarrtiage and drove it for a few days and noticed oil and wetnes at the base of the timing caovers, I suspect oil leakage from multiple gaskets and seals.
So anyway, since the oil pumps are mechanical , how often do the pumps go bad.
I mean my 70 VW Bug has mech pumps and they almost never go bad.
The manual says to measure the depth of the cavity and the depth of the shaft for wear , but it seems like this kind of wear would be next to nil.
I think Ill be ok just replacing the MM seal and gaskets and all the other seals under my timing belt as well as the belts and water pump.
I am going to document this Via my Digi cam and I will submit it to the tech column .

:confused:

#2 Dennis ex24

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Posted 17 August 2003 - 11:57 AM

just drop the hammer and buy a new unit...

autozone has melling oil pumps which are brand new for around $80, i bought mine after battling the lifter noise for 7 months and with the turn of a key it was gone after the replacement...

i never messed around with "resealing" or anything, id rather pay the extra money and have piece of mind...

#3 TheSubaruJunkie

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Posted 17 August 2003 - 12:13 PM

Re sealing is a piece of cake. if you are strapped for cash, you might want to go with the sealing kit. Shouldn't cost too much for some o-rings. Really, very simple to do. There are 2 or 3 rings that need to be replaced, and its not hard to do.

-Brian

#4 clantieri

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Posted 17 August 2003 - 12:33 PM

Brian's right. Just did my ea-81 oil pump and it took about 10 minutes to re-seal. Just 2 o-rings inside the pump body, 2 o-rings and a gasket on the body to engine side and you're done. EA-82 I'm sure is not much different. I was going to spend the $50 from autopartsworld.com, but I took a chance and spent under $5 for the re-seal kit and it was so easy. Try the $5 kit first.

Chris:banana:

#5 korrupt66

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Posted 17 August 2003 - 12:38 PM

I went with a new one and I paid about $80 and what a diffrence. I sure don't miss my valve nosie. Now I can enjoy my cd player again and not just turn it up not to hear the valves.:banana:

#6 Caboobaroo

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Posted 17 August 2003 - 07:15 PM

Hondasucks did one about a month ago on his 86 XT. It had really bad lifter noise etc. etc. WE changed the timing belts and the oil pump and the lifter noise stopped. It was quite a difference. I think he paid about 70 bucks online for it. The web address is www.thepartsbin.com

#7 overkiller

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Posted 26 August 2003 - 05:07 PM

Can someone direct me to a write up on how to reseal the pump? I have horrible lifter noise in my EA82, if it's only a 10 minute job I'll do it right now. Thanks

Travis

#8 EmmCeeBee

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Posted 26 August 2003 - 05:41 PM

Hey, overkiller -- go down the list a few postings, to "What tools do I need to replace T.Belt?". Oregonloyale is doin' the Oil Pump seals and we talked about the steps.

http://usmb.ultimate...=&threadid=3204

It's not tough, in fact the worst part of the whole thing is cleaning all the parts before reinstalling.

The seal/gasket kit for an EA82 has a seal (for the oil pump drive shaft), an O-ring (for the body of the pump that inserts into the boss in the block), and a Mickey-Mouse gasket for the mating surfaces. 5 bolts hold the pump on; there are two cut-outs on the rim of the drive sprocket that, when you line them up properly, let you get the two worst bolts out.

Clearances for the pump rotors are almost zero, they float on a film of oil. So cleaning is critical, don't want any grit in the pump or the rotor housing. Wipe a film of oil on before bolting 'em back in.

-- Mark

#9 WAWalker

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Posted 26 August 2003 - 06:00 PM

Replace the pump! The pump starts sucking air because of wear between the shaft and the body of the pump. O-rings and seal can't fix that.

EA81 pumps are totaly different. They are driven directly off the cam, so they don't have the side load from the timing belt like EA82's.

It ain't no 10 minute job on an EA82.

#10 c150L

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Posted 26 August 2003 - 07:05 PM

Now, can someone direct me to new oil pumps for the XT-6? In the $80 range even? What's the diff between the 6 pumps and the EA82s? The parts stores around here don't list much of anything for XT-6s.




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