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The better Viton Distributor O-ring by fierosound
Started on: 04-28-2013 10:47 AM
Replies: 2 (1438 views)
Last post by: css9450 on 04-28-2013 06:55 PM
fierosound
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Report this Post04-28-2013 10:47 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

We know the distributor O-ring is a bad source of leaks as they harden with age and crack.
Unfortunately, when you ask for a Fiero distributor O-ring, you get the same crap Buna-N black O-ring.

What you want is the better tan colored Viton O-ring which stands up to engine heat better.
The problem is the parts guy can't find the thing "for the Fiero".

Later year V6 engines with DIS systems didn't have a distributor, but they still had a geared drive
in the distributor's place to drive the oil pump. These later applications have the Viton O-ring available.

What you need to ask for the the O-ring for the Oil Pump Drive Gear.
Sometimes they call it a Seal and maybe Oil Pump Gasket (see example)

This example is for a 2004 Grand AM with the 3.4L (3400) engine.

ACDELCO Part # 10477565 http://www.rockauto.com/cat...426698,parttype,5444

Fel-Pro Part # 704841 http://www.napaonline.com/C...FPG704841_0147537476

NAPA's Part # is 655-1294. http://www.napaonline.com/C...DP6551294_0374155317

I think you may find them in "Help" packages as well.
Dorman PN 90441 - Distributor O-Ring Assortment

For "insurance" I also use a Felpro distributor base gasket (thanks for the pic Schurkey)



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[This message has been edited by fierosound (edited 01-01-2014).]

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hnthomps
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Report this Post04-28-2013 12:43 PM Click Here to See the Profile for hnthompsClick Here to Email hnthompsSend a Private Message to hnthompsEdit/Delete MessageReply w/QuoteDirect Link to This Post

Rodney Dickman also sells an improved distributor o ring. Once I replaced the factory o ring with Rdney's upgraded replacement, no more oil leakage at that location. This has been running for several years now so there is some long term experience.

Nelson

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css9450
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Report this Post04-28-2013 06:55 PM Click Here to See the Profile for css9450Click Here to Email css9450Send a Private Message to css9450Edit/Delete MessageReply w/QuoteDirect Link to This Post

Cool picture. I've had to replace a couple of those back when I had my Beretta - that little stub is tough to get a grip on and pull out! At least with a distributor, there's a big metal piece to grab...

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