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mudder
MMT Pro Member
Joined: Sun Jan 25, 2009 11:25 am
Posts: 401
Location: Wisconsin
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 PD36 Lower Seals After checking my lower unit oil I noticed it was quite milky, so I changed the oil. It was fine over the winter, probably because it was stored and not on the water.
My question is this: Should I just wait for the lower seals to go completely, or should I change them out now anyway, just in case?
If I change them, are there any tips or anything I should keep in mind? I was told to face the lips for the first two seals toward the prop and the lip for the 3rd seal facing the boat. He mentioned that the 3rd seal can ba a PITA to put in, any tips for putting these in would be welcome. There isn't any grease or anything I need to pack in with the seals, is there?
When seals do go out while on the water, what affects do you see in the motor when you are driving?
Thanks for any help.
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Phowler Extreme 1848 with 36PDFPR
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| Fri Jun 11, 2010 9:05 am |
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balloon-knot
MMT Pro Member
Joined: Wed Jan 14, 2009 9:05 am
Posts: 398
Location: Prairie du Chien, WI
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Re: PD36 Lower Seals Just change them out when you have time. The seals are on $10 each.
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Illowa Marine - Home of Illowa Pro-Drive and the Phowler Boat Company
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| Fri Jun 11, 2010 9:53 am |
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mudder
MMT Pro Member
Joined: Sun Jan 25, 2009 11:25 am
Posts: 401
Location: Wisconsin
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Re: PD36 Lower Seals
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Phowler Extreme 1848 with 36PDFPR
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| Fri Jun 11, 2010 9:57 am |
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mudder
MMT Pro Member
Joined: Sun Jan 25, 2009 11:25 am
Posts: 401
Location: Wisconsin
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Re: PD36 Lower Seals
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Phowler Extreme 1848 with 36PDFPR
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| Fri Jun 11, 2010 10:01 am |
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balloon-knot
MMT Pro Member
Joined: Wed Jan 14, 2009 9:05 am
Posts: 398
Location: Prairie du Chien, WI
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Re: PD36 Lower Seals High temp grease. I use it to pack the seals so everything stays in place as you press them into the nut. Then antisieze the threads on the nut.
Also make sure to use a piece of emery cloth to debur the shaft just in case you got a hanger.
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Illowa Marine - Home of Illowa Pro-Drive and the Phowler Boat Company
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| Fri Jun 11, 2010 8:47 pm |
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Sonny13
MMT Pro Member
Joined: Thu Jan 15, 2009 10:42 pm
Posts: 158
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Re: PD36 Lower Seals you said shaft HA HA
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1648 PD
32pd
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| Sat Jun 12, 2010 9:32 pm |
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POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
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Re: PD36 Lower Seals
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18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
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| Sun Jun 13, 2010 11:22 am |
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Crankcase
MMT Member
Joined: Sat Feb 20, 2010 9:31 am
Posts: 25
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Re: PD36 Lower Seals Seals are only $10 each, I don't have a part number handy. All you gotta do is knock out the old ones and press in the new and you are good to go!
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1752 Pholwer & Stock 36 PD
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| Fri Jun 18, 2010 9:28 am |
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Nonk P
MMT Member
Joined: Wed Sep 09, 2009 7:37 pm
Posts: 43
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Re: PD36 Lower Seals I have a 36hp prodrive
I took my seal nut to the machine shop and had the back of the nut boarded and installed a seal and i been running it for a 150 hours with no leaks.before I had to change my oil and my seals about every 50hr due to water getting in it with the new seal moss and cutgrass doesnt get behind the nut and the wheel as bad as it did before i install the new seal in back of the nut.
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| Wed Jun 30, 2010 8:50 pm |
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POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
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Re: PD36 Lower Seals
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18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
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| Wed Jun 30, 2010 9:17 pm |
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UNCLE-J
MMT Sponsor
Joined: Fri Jul 24, 2009 7:26 am
Posts: 10388
Location: S-Ville, LA
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Re: PD36 Lower Seals I had to change mine about 3 times in less than 150 hours..
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| Wed Jun 30, 2010 9:29 pm |
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Nonk P
MMT Member
Joined: Wed Sep 09, 2009 7:37 pm
Posts: 43
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Re: PD36 Lower Seals hey poker1 i'm not one to start shit i'm just saying what happened and trying to help. 
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| Thu Jul 01, 2010 12:40 pm |
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POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
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Re: PD36 Lower Seals
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18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
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| Thu Jul 01, 2010 2:51 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
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Re: PD36 Lower Seals Im sure the seals can be had cheaper, BUT judging by looks of it the seal lip is narrow. if there would be a way to get a wider seal lip, it would cover a little more are on the shaft to stop water intrusion.. I havent seen a torn apart lower unit to see the machine work of the the seal polished area, to see if that would help.. I know if room is availabel you can double seal it aswell... Ive seen it don on tractor PTo shafts.
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Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Fri Jul 02, 2010 7:00 am |
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HUNT4DEER
MMT F.E.
Joined: Sun Jan 03, 2010 10:39 am
Posts: 833
Location: DODGIN ROCKS ON THE RIVER OR CARS ON THE INTERSTATE
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Re: PD36 Lower Seals outboard lowers use double seals
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| Mon Jul 05, 2010 1:05 am |
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balloon-knot
MMT Pro Member
Joined: Wed Jan 14, 2009 9:05 am
Posts: 398
Location: Prairie du Chien, WI
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Re: PD36 Lower Seals triple seals on the new generation PD lower units.
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Illowa Marine - Home of Illowa Pro-Drive and the Phowler Boat Company
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| Wed Jul 07, 2010 10:07 am |
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Duck Diggler
MMT Pro Member
Joined: Thu Jan 15, 2009 8:28 pm
Posts: 241
Location: Tampa Bay, Florida
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Re: PD36 Lower Seals on the new generation lower units....Are you suppose to change the lower unit oil?
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| Sat Aug 07, 2010 6:42 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
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Re: PD36 Lower Seals
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Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
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| Mon Aug 09, 2010 6:37 am |
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