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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Grease Seal for Top of Lower Unit?
Want to replace this seal, does anyone know if this part is available at local parts store? Need to get one right quick before I reassemble my motor.
Thanks
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Wed Dec 30, 2015 8:00 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm Posts: 4820 Location: West Monroe, LA
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 Re: Grease Seal for Top of Lower Unit?
Mb, gt, gd, lt, etc?
There's a gtr lower drive bearing seal replacement thread that has that info for gt. Do a search.
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Wed Dec 30, 2015 9:14 pm |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
Sorry, Russ! Good observation.
It's a PD, long shaft.
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Wed Dec 30, 2015 9:23 pm |
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cheniermudder
MMT Pro Member
Joined: Mon Apr 06, 2015 8:30 am Posts: 434 Location: SW Louisiana - Sabine River
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 Re: Grease Seal for Top of Lower Unit?
_________________ 2010 31hp GT on a 1648 Alumacraft Jon Boat
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Fri Jan 01, 2016 4:12 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm Posts: 4820 Location: West Monroe, LA
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 Re: Grease Seal for Top of Lower Unit?
Ahh. Nice. Unfortunately, he's got a prodrive, so it'll be of no help
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Fri Jan 01, 2016 4:23 pm |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Fri Jan 01, 2016 5:09 pm |
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cheniermudder
MMT Pro Member
Joined: Mon Apr 06, 2015 8:30 am Posts: 434 Location: SW Louisiana - Sabine River
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 Re: Grease Seal for Top of Lower Unit?
Well Shooter, looks like you're about to become the Pro Drive seal replacement guru!! Take pics as you go thru disassembly to help yourself remember where everything comes from and goes back, then you can share them with the rest of your PD brothers!
_________________ 2010 31hp GT on a 1648 Alumacraft Jon Boat
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Sat Jan 02, 2016 7:12 pm |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
Which seal are you talking about?
Photo for clarification, please.
Most liberals seem to suffer from the same mental condition....it's called stupidity!
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Sat Jan 02, 2016 8:45 pm |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Sun Jan 03, 2016 4:33 am |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
Gotcha...thanks.
Are you "wanting" or "needing" to change that seal?
Reason I ask, I was going to go after that seal this past summer when doing some "PM" work. When I spoke to PD about it, they said that it's never really been a problem point with the LU's. Just keep the grease pumped into the tower/bushing area and keep an eye on the gear lube level and it would be fine.
IMG_4234.JPG
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Sun Jan 03, 2016 8:46 am |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
If you're needing one this link has some pretty good info on seals. But, you're probably gonna have to pull that seal out and mic the shaft and LU dimensions to get a replacement without going through PD.
To answer your question from the OP, I don't know if you can run out and get one of these. LOL
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Sun Jan 03, 2016 9:05 am |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
Blue - thank you, sir. Great info.
Yeah, replacing this seal is a want, not a need. Just figured if I could get one I'd replace it while I was in there. Chasing a water leak in the LU, figured this was my best chance as I'm replacing the splined clutch adapter.
I appreciate your help, have a great new year.
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Sun Jan 03, 2016 11:25 am |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
Are you getting a lot of water in the LU lube? If so, the main thing to keep greased is your outdrive. The grease is the barrier on both sides to keep water out and oil in.
The hex seal nut can be getting some wear....but, there are several seals to get through from the nut to the outdrive....and, as mentioned, just keep it greased.
Sent from my iPhone using Tapatalk
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Sun Jan 03, 2016 5:28 pm |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Sun Jan 03, 2016 8:48 pm |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
Do you have a grease zerk on the top of your outdrive, in front of the cav plate? If not, you have the old oil filled outdrive....which means you have one vent plug on the knuckle and one fill plug on the rear side of the outdrive......which would be a good time to covert it to grease if you have things apart. It's not that difficult to convert. There was a thread on here recently where somebody converted from old style to new style.
Most liberals seem to suffer from the same mental condition....it's called stupidity!
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Sun Jan 03, 2016 10:31 pm |
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meterman3
MMT 1000 Club
Joined: Mon Dec 21, 2009 6:25 pm Posts: 1407
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 Re: Grease Seal for Top of Lower Unit?
On the face of that seal is a part no. Auto parts or seal and bearing co. Can cross ref that to another manufacturer
_________________ driving a gd in ur lake and i aprove this message
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Sun Jan 03, 2016 10:43 pm |
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shooter
MMT Pro Member
Joined: Wed Jul 21, 2010 5:59 pm Posts: 406
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 Re: Grease Seal for Top of Lower Unit?
_________________ 32 PD with EVT cam, decked heads, shaved pistons and not enough sense to leave things alone!
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Mon Jan 04, 2016 2:14 am |
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BlueShamu
MMT Elite Member
Joined: Mon Feb 06, 2012 6:13 pm Posts: 5605 Location: D'town, LA
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 Re: Grease Seal for Top of Lower Unit?
Thought this was a total DIY conversion. After reading it again, the only DIY was removing/installing the outdrive and drill/tap the knuckle for additional plug. viewtopic.php?f=41&t=62738&hilit=PlugSent from my iPhone using Tapatalk
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Mon Jan 04, 2016 8:57 am |
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SwampnutzWi
MMT Pro Member
Joined: Sat Aug 23, 2014 7:55 pm Posts: 100 Location: Central Wi
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 Re: Grease Seal for Top of Lower Unit?
Called Prodrive a couple weeks ago to see if they would convert my gen 1 to grease they said they don't anymore. Just gonna keep rolling with gear oil bath till I upgrade. Be nice to find a decent used gen2 lower
Sent from my iPhone using Tapatalk
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Fri Jan 22, 2016 2:38 am |
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JLACOUR
MMT 1000 Club
Joined: Wed Jan 14, 2009 8:18 pm Posts: 4915 Location: Lake Jackson, TX
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 Re: Grease Seal for Top of Lower Unit?
_________________ 37 PD EFI FPR 18x48 Tiller SOLD -- 36 PD EFI FPR 18x48 Stick Steer SOLD -- 27 PD FPR 16x36 Skiff
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Fri Jan 22, 2016 7:24 am |
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