1981 Ford 351 rear main seal reverse rotation
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35855
Printed Date: October-07-2024 at 10:55pm
Topic: 1981 Ford 351 rear main seal reverse rotation
Posted By: Plan B
Subject: 1981 Ford 351 rear main seal reverse rotation
Date Posted: April-24-2015 at 12:13am
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In need of a rear main seal for a right hand rotating ford 351 cleveland motor.. I have searched the inner webs tirresly with no luck, many sites show it, but none are in stock..anywhere. Does anyone happen to know where I can find one or if there are any other substitions? Any help would be greatly appreciated. |
Replies:
Posted By: 8122pbrainard
Date Posted: April-24-2015 at 7:32am
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Ryan, Confirm your engine block. The Cleveland is a very elusive engine. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: phatsat67
Date Posted: April-24-2015 at 10:25am
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The 2 piece rear main shouldn't be rotation specific as the crankshaft had knurls cut into it to wick oil away from the seal. One piece seals are rotation specific. ------------- |
Posted By: Plan B
Date Posted: April-24-2015 at 10:31am
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What information do you need, and where is it located? I will post it asap. Thanks for the reply. |
Posted By: TRBenj
Date Posted: April-24-2015 at 10:38am
Zach, let's get the guy figure out that he has a Windsor, and then confirm the year before we go talking specifics.
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Posted By: Plan B
Date Posted: April-24-2015 at 1:46pm
Do one of these tags help to I.d. the motor? 
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Posted By: Gary S
Date Posted: April-24-2015 at 1:52pm
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how about a picture of the motor from the front? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: Plan B
Date Posted: April-24-2015 at 1:58pm
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Posted By: TRBenj
Date Posted: April-24-2015 at 2:01pm
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Oh my gosh, the elusive Cleveland!!!! Just kidding, it's a Windsor. Specifically, a commander marinization. Looks like it's been monkeyed with a bit. I'd verify the casting number of the block to verify the year. The rear main seal style changed around 83. |
Posted By: Plan B
Date Posted: April-24-2015 at 2:43pm
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Opps, I mixed up cleveland with commander..how embarrassing. With that being said, this motor has been more than monkeyed with by more than one monkey :) I'm looking all over this block for some sort of casting # but not seeing anything besides the photos I uploaded earlier. Can anyone tell me what location they should be in. I tried Google images but still not seeing one. |
Posted By: Plan B
Date Posted: April-24-2015 at 3:23pm
Is this it? The numbers after are -8505-AA
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Posted By: TRBenj
Date Posted: April-24-2015 at 3:57pm
| No, that is the water pump. |
Posted By: JoeinNY
Date Posted: April-24-2015 at 4:17pm
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IIRC on the windsors the block casting number will be on the block behind the starter. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: Plan B
Date Posted: April-24-2015 at 7:14pm
Man, I can't find it. When you say behind the starter do you mean having to remove it to see it? I've looked and relooked without seeing any numbers. Below is a picture taken just above the starter from the side and the other one is taken from the backside area near the starter..both of which I see no numbers.   
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Posted By: Plan B
Date Posted: April-24-2015 at 10:39pm
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Thanks JoeinNY, you were correct, and yes the starter has to be removed to see it. It appears to be: D9AE-6015-ED 11 
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Posted By: TRBenj
Date Posted: April-24-2015 at 10:46pm
| D9=1979, so 2-piece seal block. You don't need a rotation-specific rear main seal, the wick lines are in the crank. |
Posted By: Plan B
Date Posted: April-24-2015 at 11:00pm
| Awesome! Thanks TRBenj! Any recommendations on which seals I should use as well as what I should check/replace while I'm down there? Plan on doing the RMS and oil pan seal so far. |
Posted By: Watauga
Date Posted: April-24-2015 at 11:25pm
 Its the Felpro 17748 ------------- http://goo.gl/t8gAkI" rel="nofollow - 1980 Rebuild http://goo.gl/TFsgCy" rel="nofollow - Diary Signpainter, Disaster Responder, Longline Barefooter |
Posted By: Plan B
Date Posted: April-24-2015 at 11:40pm
| Thanks Watauga, thats what I'll get. BTW, amazing restore on your boat! I look at that thread all the time! |
Posted By: Watauga
Date Posted: April-24-2015 at 11:43pm
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If you cant find it local you should check with the site sponsors and even Amazon and Ebay. They are getting hard to find. ------------- http://goo.gl/t8gAkI" rel="nofollow - 1980 Rebuild http://goo.gl/TFsgCy" rel="nofollow - Diary Signpainter, Disaster Responder, Longline Barefooter |
Posted By: Watauga
Date Posted: April-25-2015 at 12:10am
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RockAuto has 2 in stock on closeout for less than $16. Better hurry. ------------- http://goo.gl/t8gAkI" rel="nofollow - 1980 Rebuild http://goo.gl/TFsgCy" rel="nofollow - Diary Signpainter, Disaster Responder, Longline Barefooter |
Posted By: Plan B
Date Posted: April-25-2015 at 9:15am
| Someone got to them before I did..I found a set for $40. |
Posted By: Plan B
Date Posted: April-25-2015 at 9:35am
| Thinking I should replace the cutlass bearings while I have the shaft apart, I have a 1" shaft can anyone verify the size I need? |
Posted By: 8122pbrainard
Date Posted: April-25-2015 at 10:37am
! &1/4" x 4" would be typical. Some have used the newer plastic but I've stuck with the "tried and true" rubber. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Plan B wrote:Posted By: Plan B
Date Posted: April-25-2015 at 11:18am
| Thanks Pete, just ordered one from deep blue yacht supply. |
Posted By: Plan B
Date Posted: April-25-2015 at 1:47pm
| Wait a second..if the rear main seal for my block is not rotation specific, why do they sell rotation specific seals? |
Posted By: JoeinNY
Date Posted: April-25-2015 at 2:50pm
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So they can charge more for the rh ones ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |