Rear main seal

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bear
Posts: 566
Joined: Tue Oct 08, 2013 8:24 pm

Re: Rear main seal

Postby bear » Mon Apr 25, 2016 10:00 am

No offence , but I'm with Mike on this one and I still don't understand all the issues people have with the original style seals . I have yet to have one leak on me after I installed one . Even the 440 in my Warlock leaked when I first got it and that had less then 2 K on it . When I pulled it and did my thing to it , I installed an original style seal and I have yet to have one leak in that motor .

Dgc333
Posts: 119
Joined: Mon May 13, 2013 8:46 am

Re: Rear main seal

Postby Dgc333 » Mon Apr 25, 2016 4:17 pm

In my 40 or so years working on engines I have never seen an original factory rope seal that didn't leak to some degree. Some gasket sets still provide this type of seal.

The two piece aftermarket rubber seals like the Mancini one work very well but there is a technique to installing them to ensure a leak free seal. They need to be clocked so the seams are not on the separation line of the cap and block. I also put a dab of RTV on the ends.

Dave

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68383
MassMopar Moderator
Posts: 1623
Joined: Fri Apr 26, 2013 7:01 pm
Location: Charlton, MA

Re: Rear main seal

Postby 68383 » Mon Apr 25, 2016 6:00 pm

Thanks, guys!


Speeling mistakes due two Siri.
68383 / Dave

Current Mopars- 69 Super Bee- 522, 4 speed, 95 Ram- 360, auto, 4wd
Prior- 68 Charger, 72 Demon, 72 & 75 Darts, 73 Challenger, 74 Scamp

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Speeling mistakes do to iPhone.

bear
Posts: 566
Joined: Tue Oct 08, 2013 8:24 pm

Re: Rear main seal

Postby bear » Tue Apr 26, 2016 10:11 am

Dgc333 wrote:
The two piece aftermarket rubber seals like the Mancini one work very well but there is a technique to installing them to ensure a leak free seal. They need to be clocked so the seams are not on the separation line of the cap and block. I also put a dab of RTV on the ends.

Dave

That's the way I've always installed them and any machine shop or engine builder "should" already know that .

moparmike
Posts: 382
Joined: Fri Jul 26, 2013 11:52 am
Location: Norton, MA

Re: Rear main seal

Postby moparmike » Tue Apr 26, 2016 12:39 pm

bear wrote:
Dgc333 wrote:
The two piece aftermarket rubber seals like the Mancini one work very well but there is a technique to installing them to ensure a leak free seal. They need to be clocked so the seams are not on the separation line of the cap and block. I also put a dab of RTV on the ends.

Dave

That's the way I've always installed them and any machine shop or engine builder "should" already know that .


What they said.
70 'Cuda|89 Shelby Daytona T-Top|63 Belvedere

Dgc333
Posts: 119
Joined: Mon May 13, 2013 8:46 am

Re: Rear main seal

Postby Dgc333 » Tue Apr 26, 2016 6:38 pm

Well I have taken apart enough engines to know that they all don't.

Dave


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