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302 rear main seal |
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Jdavis 
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Joined: June-11-2021 Location: Gadsden, Alabam Status: Offline Points: 4 |
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 Topic: 302 rear main sealPosted: June-11-2021 at 3:20pm |
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I just recently purchased a 76 ski Tique that the previous owner let the engine freeze and crack the block. I think I have found another block but I am having trouble finding the 2 piece rear main seal for a reverse rotation engine. Any suggestions or help would be greatly appreciated.
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Gary S
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Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: June-11-2021 at 3:53pm |
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Is this it? https://www.marineengineparts.com/fel-pro-17746-2-piece-rear-main-seal-ford-302-right-hand-rotation
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Gary S
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Posted: June-11-2021 at 3:59pm |
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I question that part number because Summit,O'Reilly's,Jegs,Advance etc all show that it is available but in their description does not list reverse, only marineengineparts state it is.
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: June-11-2021 at 4:10pm |
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KENO
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Posted: June-11-2021 at 6:11pm |
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This may be rather silly of me, but the 2 piece rear main seals are smooth and the oil control/wick/helix lines are on the crankshaft so why spend the bucks on a "marine" seal when you can use an automotive 2 piece seal for quite a bit less money?
What year block are you looking at?
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Gary S
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Posted: June-11-2021 at 6:25pm |
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If you look it up by part number all except eBay are within a few dollars of each other - eBay is 10 - 11 cheaper.
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KENO
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Posted: June-11-2021 at 7:14pm |
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But if you look up a rear main seal for a 77 ford 302 and come up with a FelPro part number like BS30136 or 2901 for example, it's a bunch cheaper. (edited to add the 2901 seal)
Must be paying for some "marine rubber"
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Gary S
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Posted: June-11-2021 at 7:35pm |
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I wonder what the difference between the two is- Felpro is not calling it marine
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KENO
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Posted: June-12-2021 at 6:35am |
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Using Summit prices for consistency Felpro 30136 not labeled marine...... 18 dollars Felpro 2901 not labeled marine.........27 dollars I think you're paying for that word
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Jdavis
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Posted: June-12-2021 at 11:28am |
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Thanks for all the help. I’m going to dig around a little more and see what I can come up with
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KENO
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Posted: June-12-2021 at 11:45am |
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Must be safe to assume you're looking at a block built sometime before 1983?
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Jdavis
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Posted: June-12-2021 at 5:54pm |
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Yes I am looking for a pre 1983 block
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Gary S wrote: