 Melling M-79AHP Oil Pump |
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| #27GLA |
 Jul 29 2015, 05:44 PM
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Newbie  Group: Members Posts: 7 Joined: 7-May 14 From: Michigan Member No.: 17,319 Region Association: None  |
Anyone else using this oil pump on their Type IV engine and finding it leaks?
Having issues trying to get the cover plate to seal..... Cover plate was leak free prior to rebuild......mechanic cleaned up.....reused and installed with paper gasket and Permatex Aircraft grade sealant.....no leaks till I went to track and got black flagged.....excessive smoke from under car.......Took it a part.....resealed and still leaked in the shop Purchase new unit......sealed per instructions.....still leaks Called Melling Pump......they can't figure it out either but overnighting new gaskets of several styles.....Installed new gaskets per their directions....still leaks Going to Melling tomorrow as their manufacturing/RD is an hour away Besides Melling......what other High Volume pumps are available that are reliable Any use an O-ring to seal instead of a gasket |
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| #27GLA |
Aug 1 2015, 06:20 AM
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Newbie Group: Members Posts: 7 Joined: 7-May 14 From: Michigan Member No.: 17,319 Region Association: None |
Firstcar.......thanks for your response
Agree with the cover plate as the issue Did try a stock VW cover plate my mechanic had in stock.....but could not get in onto the studs as there was not enough clearance using the Tangerine Racing fan set up...........some mods could be done to get one past Which type Hylormar sealant do you recommend?..............see there are several grades My visit to Melling was fruitful as they gave me a brand new pump they tested that AM.......it still leaked but considerable less. Melling also prefers that you use no sealant at all Searched forum but did not find a related thread..... |
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Posts in this topic
#27GLA Melling M-79AHP Oil Pump Jul 29 2015, 05:44 PM
TVRLOTUSTR3 I cut a groove in the side of the pump and install... Jul 30 2015, 05:17 AM Firstcar I think this has been "covered" elsewher... Jul 31 2015, 09:56 PM Mark Henry I for one consider mellings to be junk. Aug 1 2015, 06:39 AM Firstcar Hylomar 71285:
http://www.competitionproducts.com... Aug 1 2015, 01:23 PM #27GLA Have the stock plate and the sealant................. Aug 3 2015, 07:10 PM
Jake Raby The problem is these pump bodies are machined befo... Aug 4 2015, 08:06 AM |
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