Re: The best Rear main Seal for a 440?
[Re: ZIPPY]
#2827114
09/30/20 09:23 PM
09/30/20 09:23 PM
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Joined: Jan 2003
Posts: 4,760 Moved to N.E. Tennessee
GomangoCuda
master
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master
Joined: Jan 2003
Posts: 4,760
Moved to N.E. Tennessee
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So on a modern build, myself I substitute RTV for the side seals. I try to inject it inside the groove as much as possible and also pack that area using putty knife/fingers and so on. I've been doing it that way since about 1975.
In theory, there is no difference between theory and practice. In practice, there is.
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Re: The best Rear main Seal for a 440?
[Re: DrCharles]
#2827360
10/01/20 12:36 PM
10/01/20 12:36 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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So on a modern build, myself I substitute RTV for the side seals. I try to inject it inside the groove as much as possible and also pack that area using putty knife/fingers and so on. I did that on my current 451 and it worked perfectly. I just made sure to get the seal holder and the block operating-room clean before applying it. RTV cures from exposure to moisture, inserting a wet pipe-cleaner into the wet RTV not only promotes fast cure but also expands the RTV into every corner of the groove.
The INTERNET, the MISinformation superhighway
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Re: The best Rear main Seal for a 440?
[Re: Fasbird]
#2827915
10/02/20 02:31 PM
10/02/20 02:31 PM
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Joined: Sep 2003
Posts: 19,641 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,641
north of coder
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there was a thread recently that showed a billet retainer modified to resemble the engine side of the factory retainer. this acted as a deflector, throwing the oil back toward the pan. i'm too stupid to know when that was, or if i did remember, i couldn't link to it. maybe someone remembers this ? help out an old doofus with "oldtimers" and CRS please.
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Re: The best Rear main Seal for a 440?
[Re: moparx]
#2828365
10/03/20 05:37 PM
10/03/20 05:37 PM
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Joined: Jul 2005
Posts: 640 Graz, Austria
DGS
mopar
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mopar
Joined: Jul 2005
Posts: 640
Graz, Austria
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there was a thread recently that showed a billet retainer modified to resemble the engine side of the factory retainer. this acted as a deflector, throwing the oil back toward the pan. i'm too stupid to know when that was, or if i did remember, i couldn't link to it. maybe someone remembers this ? help out an old doofus with "oldtimers" and CRS please. Here's mine:
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Re: The best Rear main Seal for a 440?
[Re: jlatessa]
#2829437
10/06/20 05:55 PM
10/06/20 05:55 PM
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Joined: Sep 2003
Posts: 19,641 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,641
north of coder
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that's interesting. i have never seen anything like that. do you, by chance, have any pics of that pan ?
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Re: The best Rear main Seal for a 440?
[Re: jlatessa]
#2829759
10/07/20 11:54 AM
10/07/20 11:54 AM
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Joined: Aug 2003
Posts: 43,315 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,315
Bend,OR USA
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Interesting, I have an old pan from a 71 New Yorker with a 375 horse 440 that has a baffle at the back of the pan, "U" shaped to help keep oil off the seal.
I wonder why that wasn't used on other hipo cars, or was it??
Joe I have owned and used several of those type pans also I think Mopar started using them in 1971 on the C body cars and maybe in the BB Cordoba also later
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: The best Rear main Seal for a 440?
[Re: Cab_Burge]
#2829784
10/07/20 12:28 PM
10/07/20 12:28 PM
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Joined: Aug 2009
Posts: 1,319 Ohio
jlatessa
pro stock
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pro stock
Joined: Aug 2009
Posts: 1,319
Ohio
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I think when I remove the pan on one of our cars, I may cut out that baffle and attach it to the 6 Qt. pan.
the sump baffle is the best I've seen on a stock pan too.
Joe
Last edited by jlatessa; 10/07/20 12:50 PM.
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Re: The best Rear main Seal for a 440?
[Re: Cab_Burge]
#2829991
10/07/20 04:31 PM
10/07/20 04:31 PM
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Joined: Aug 2009
Posts: 1,319 Ohio
jlatessa
pro stock
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pro stock
Joined: Aug 2009
Posts: 1,319
Ohio
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OK, I knew someone would suggest that, I agree. As far as a scraper for our cars, I'm not sure we would benefit much as they both shift below 6000.
I'll take some measurements and I know someone who waterjets, so maybe I can make a few.
Joe
As an aside, it looks like the baffles are brazed in, right?
Last edited by jlatessa; 10/07/20 04:34 PM.
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Re: The best Rear main Seal for a 440?
[Re: jlatessa]
#2830329
10/08/20 11:54 AM
10/08/20 11:54 AM
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Joined: Aug 2009
Posts: 1,319 Ohio
jlatessa
pro stock
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pro stock
Joined: Aug 2009
Posts: 1,319
Ohio
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Here's a pic of the 187 pan...Joe
Looks like the main baffle is spotwelded, but the rear baffle brazed, maybe not enough flange or room
Last edited by jlatessa; 10/08/20 11:59 AM.
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Re: The best Rear main Seal for a 440?
[Re: GomangoCuda]
#2830388
10/08/20 02:03 PM
10/08/20 02:03 PM
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Joined: Jan 2003
Posts: 17,915 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,915
S.E. Michigan
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So on a modern build, myself I substitute RTV for the side seals. I try to inject it inside the groove as much as possible and also pack that area using putty knife/fingers and so on. I've been doing it that way since about 1975. How has it worked out for you in all that time?
Rich H.
Esse Quam Videri
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