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question rear main 80 sn |
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kapla 
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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 Topic: question rear main 80 snPosted: February-17-2014 at 4:50pm |
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Need some info
I have a friends who just received a 1980 sn as part of a boat sale. Nice looking except they put a tower on it  It has a commander rh351w and seems to be leaking some oil through the rear of the engine, probably the main seal or a tranny seal. anyway if it happens to be the rear main? for that period engine is the 2 piece seal? and where can it be ordered? thanks |
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<a href="">1992 ski nautique
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phatsat67
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Joined: March-13-2006 Location: Indiana Status: Offline Points: 6157 |
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Posted: February-17-2014 at 4:56pm |
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Should be a 2 piece seal. At this time (as far as I know) Felpro still has the part number but it is no longer active or in production for the reverse rotation engines. A customer of mine (can't recall the name) found them as old stock at a business (also can't recall the name). So basically I just told you I am useless. Hopefully someone else will have some info. If not I can try to hit up Fel-pro again.
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: February-17-2014 at 5:08pm |
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<a href="">1992 ski nautique
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Online Points: 21172 |
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Posted: February-17-2014 at 5:37pm |
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I do not believe there is anything special about the 2-piece seal... it should be bi-directional. The wick lines for oil control are in the crank (unlike the newer 1-piece).
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: February-17-2014 at 5:40pm |
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so basically any 2 piece seal should work on a pre 83 351w ford ?
I see them listed 2 pc lh or rh..wonder the difference between each... |
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<a href="">1992 ski nautique
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Gary S
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Posted: February-17-2014 at 5:56pm |
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the difference is with rh on the lable they know you think it's special for marine use and charge accordingly
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: February-17-2014 at 6:58pm |
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Ha!
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<a href="">1992 ski nautique
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JoeinNY
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Joined: October-19-2005 Location: United States Status: Offline Points: 5698 |
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Posted: February-17-2014 at 7:06pm |
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Yep on a two piece seal if you can see any difference between the two besides the part number you have better eyes than me, but don’t take 83 as a hard and fast cut off year.. its either one piece or two the year is unimportant and unconfirmed as an indication of which (although its around 83 anyway. )
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Tim D
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Posted: February-17-2014 at 11:52pm |
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A two piece seal has no wick lines, they're on the crank. I bought a "marine" two piece from skidim in '98 and it was the same Ford part from NAPA that cost $14, just a different package.
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Tim D
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phatsat67
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Joined: March-13-2006 Location: Indiana Status: Offline Points: 6157 |
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Posted: February-18-2014 at 12:03pm |
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Rock and roll. Wonder why Fel-pro lists a number anyhow.
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