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PostPosted: Sat Mar 10, 2012 6:17 pm 
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Joined: Mon Dec 15, 2003 2:40 pm
Posts: 22512
Location: Chicago
On the discontinued list is the 91203-HEO-003 right crank shaft seal or right crank case seal, we need to find a replacement.

This is not a standard 42x65x11 seal its a 'double seal' its like two regular oil seals back to back, the one side of the seal seals the pressure/vacuum in the crank case the other side of the seal seals the oil that is in the balancer case from entering the crank cases.

See pictures below

Image


Image

The question is was this 'double seal' design really required or just more over kill in engineering by Honda? Can we just install a regular oil seal like the seal found on the clutch side of the crankshaft that seals just the crank cases pressure/vacuum pulses, like most standard seals it has a dust lip on the outside, the clutch side seal has what ever elements you expose the Engine too if we used the same style seal on the mag side or right side of the crankshaft it would not be exposed to the outside elements it would be exposed to oil that is splashed around inside the balancer cases.


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PostPosted: Sat Mar 10, 2012 6:23 pm 
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Joined: Mon Dec 15, 2003 2:40 pm
Posts: 22512
Location: Chicago
Other discussion about this seal can be found in the following threads

Read the this whole thread some interesting do's and donts can be learned by this lesson http://www.pilotodyssey.com/PO/viewtopic.php?f=34&t=9256


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PostPosted: Sat Mar 10, 2012 6:40 pm 
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Location: Chicago
http://www.ebay.com/sch/i.html?_trksid= ... &_from=R40

Make sure you verify the seal size before you order these 42x65x11 seals


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PostPosted: Sun Mar 18, 2012 9:30 am 
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Joined: Mon Dec 15, 2003 2:40 pm
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Location: Chicago
Pilot Right Side Crank Seal 91203-HE0-003 OIL SEAL (42X65X11)

Still looking for a exact replacement.


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PostPosted: Sun Mar 18, 2012 9:32 am 
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Posts: 22512
Location: Chicago
Current discussion on this seal viewtopic.php?f=1&t=9406


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PostPosted: Fri Mar 23, 2012 4:54 pm 
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Joined: Sat Jan 02, 2010 8:33 pm
Posts: 93
Location: England
Heres a link to the original suppliers of all the Honda Pilot seals and o-rings cant see any listings for sizes that are currently available, maybe they can still supply??
I'm going to send them an e-mail to see what the status is!!!

http://www.arai-net.com/products/product01e.pdf

Simon L


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PostPosted: Fri Mar 23, 2012 6:08 pm 
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Location: Chicago
Looks like this one huh


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PostPosted: Wed Oct 02, 2013 6:56 pm 
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Joined: Mon Oct 08, 2007 12:39 am
Posts: 3294
Location: Oklahoma City, OK
This is the right crank seal you will get when ordering from ATV Racing , 91203-HE0-003 OIL SEAL (42X65X11). Its an SKF brand, ok good quality seal but it has only one lip? I can only see one lip, there is a another lip but the ID is smaller than the one that has the spring. Also only one spring. I might be using this in a current rebuild and i will try to remember to post here how it performs once I get some hours on the Engine.


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PostPosted: Wed Oct 02, 2013 7:06 pm 
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Joined: Mon Dec 15, 2003 2:40 pm
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Location: Chicago
Thanks for the update.

That is the same type seal Mudbogger got and I used on one of his engines seems to be ok.

That is the same type seal as used on the clutch side meaning just a single seal, it seals fine.

This seal rides in the balancer case where it sees a splash of oil from the balancer gears its not running under oil just splashed on, better than dirt moisture mud sand that the clutch side is exposed too lol

I always thought the double seal was over kill but Honda is like that, time will tell if they are a problem I doubt they will be, check your balancer oil level after each ride trip to ensure its not sucking it into the Engine, you need to check the level because if its just seeping you might not notice any excess smoke from the Engine or carbon build up on your plug, if you notice a bunch of extra smoke when the Engine is up to temp better check it ASAP.

Time will tell if any of my theories are right or not lol

Install that seal with the spring facing the inside of the crank case like the clutch side seal....


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PostPosted: Wed Oct 02, 2013 7:22 pm 
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Joined: Mon Oct 08, 2007 12:39 am
Posts: 3294
Location: Oklahoma City, OK
Did you happen to see what seal is in my 500? Heck I put almost 30 hours on that sucker, and who knows how many hours were on it after you Hoserized it, heh heh.

The balancer oil getting into the cylinder reminds me of my first FL350 and really first 2 stroke Engine, theres a post here showing all the carbon build up in the exhaust port and on the plug. I couldnt fiigure out why my balancer oil was getting low, no external leaks :shock: , I lost the big end rod bearing and that's when I pulled it apart to find the leaky seal.


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PostPosted: Sat Oct 05, 2013 2:47 pm 
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Joined: Tue Dec 23, 2003 10:31 pm
Posts: 5559
Location: New Jersey
I have had no issues with that seal in the Turbo Engine to date. I also sent Hoser the same seal to install in the Vroom Engine rebuild he has currently as well.


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PostPosted: Sat Oct 05, 2013 3:06 pm 
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Joined: Sat Jan 02, 2010 8:33 pm
Posts: 93
Location: England
Hoser heres a link to a company in the uk that can supply a Viton seal which is a much superior material to the rubber/neoprene mix that was used "back in the day". my experience with Viton seals comes from air-conditioning applications and these are now commonly used in the more modern Turbocore compressors which have shaft speeds up to 33,000 rpm and at times will hold back pressures ranging from -60 to +300psi at sometimes crazy temperatures with an oil-less condition on the pressure side and an oil filled gearbox on the front side.
From a personal point of view i wouldn't hesitate to use these seals as a replacement for the discontinued seal.
Whats your opinion?

http://simplybearings.co.uk/shop/p70486/42x65x10mm+TC+/+R23+Double+Lip+Viton+Rubber+Metric+Rotary+Shaft+Oil+Seal+with+Garter+Spring/product_info.html

Simon L


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PostPosted: Mon Nov 18, 2013 9:58 am 
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Joined: Mon Dec 15, 2003 2:40 pm
Posts: 22512
Location: Chicago
britboard wrote:
Heres a link to the original suppliers of all the Honda Pilot seals and o-rings cant see any listings for sizes that are currently available, maybe they can still supply??
I'm going to send them an e-mail to see what the status is!!!

http://www.arai-net.com/products/product01e.pdf

Simon L



The above link you provided is now bad you happen to have a copy of the PDF it use to link for, I tried to find a new link but best I can do is is here and the PDF is not in English
http://www.arai-net.com/english/products/index.html#p01


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PostPosted: Sat Jan 25, 2014 6:07 pm 
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Joined: Sun Jul 22, 2012 1:56 pm
Posts: 360
Location: Santa Cruz, CA
Where are you guys ordering the crank seals from?


-Jason


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PostPosted: Fri Jan 31, 2014 3:31 am 
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Joined: Tue Jan 17, 2012 3:19 am
Posts: 7698
Location: Hope, B.C Canada
I just got 5 seals for my fl350 from simplybearings.co.uk and they look great.
Double lip (two springs) DC type.
It took nine days to get here to Canada from the U.K.
The five seals with shipping were $29.30 UK money and I don't know what the exchange rate is but I think it is X's two in Canadian dollars so that's $60 for the five of them.
Seem like a good bunch to deal with. They were quick with my email questions and confirmation of the shipping.
These guys must have seals for the fl400.


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PostPosted: Fri Jan 31, 2014 8:25 am 
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Joined: Mon Oct 29, 2012 1:59 am
Posts: 250
Personally i would have to agree with hoser on the double lip being over kill.
If they can have 1 lip on the dirt exposed side keeping water sand and mud out why need 2 for splash oil?

This double lip is nothing new it's on bikes separating transmission oil and the crank.
honda just copied that hole concept thinking it was better.
It's not exactly submerged ether and it's just regular oil that would leak in.
smoke a tad more worst case. :-)


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PostPosted: Sun Jul 13, 2014 4:49 pm 
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Joined: Tue Dec 23, 2003 10:31 pm
Posts: 5559
Location: New Jersey
http://www.skf.com/group/products/seals ... rial=false

this might help in assisting us as far as the double lip is concerned. It shows the acceptable shaft thickness for the 42x65x10 seal which is a touch smaller then the OEM 42x65x11 Honda seal. This is double lipped as is stock.
I have used the SKF 563557 seal in many of my rebuilds and we have not had a failure yet to date. I am having a hard time locating these so I will purchase these again off ebay:

http://www.ebay.com/itm/Metric-Oil-Shaf ... 1127474544

I have purchased these before and Hoser used them, no issues. I just re ordered 10 more for future rebuilds.


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PostPosted: Wed May 06, 2015 4:14 pm 
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Joined: Wed Nov 26, 2008 8:14 pm
Posts: 20
I just received from the factory 40 seals with double lips and spring (see the pictures)
dimensions are 42x65x12.
It was a special order, are only on request.
They don't have 42x65x11 matrix.
I used it in my pilot and works fine...

WLK Brand, from Korea.


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PostPosted: Wed May 06, 2015 4:36 pm 
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Joined: Mon Oct 25, 2004 10:02 am
Posts: 2865
Location: East Peoria IL
Korea :shock: Not so sure about that. Not knocking you just hate to trust my Engine on a seal made in Korea. However you did say it is working well. what did they cost if you don't mind me asking?


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PostPosted: Mon Nov 09, 2015 11:15 am 
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Joined: Sat Nov 30, 2013 8:27 am
Posts: 64
What is the solution then, that this replacement??????


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