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Author Topic: Countershaft seals  (Read 1971 times)

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Offline salukispeed

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Countershaft seals
« on: April 23, 2012, 09:41:39 AM »
My 1977 750A countershaft seal ( behind the chain sprocket ) is leaking slightly. I can find the inner seal 34x66   91211-393-003 from Mother honda but the outer seal 34x62x13    91203-393-003 is no longer available. Does anyone have a source and part number for this seal or seals. Thanks
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1974 CB750 K4
1970 CT70
1966 CA77 (305 Dream)
1984 GL1200 Interstate
1977 750A
1972 CL100

Offline raymond10078

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Re: Countershaft seals
« Reply #1 on: April 23, 2012, 10:33:34 AM »
I just order two from cmsnl - their website said they had three left - before I bought two.

http://www.cmsnl.com/honda-cb750a-750-hondamatic-78-us_model7237/partslist/E++19.html

Item 28.
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1978 CB750A (upgrading very, very slowly)

Past bikes - Honda: SL350, CX650C, CB900C, CB1000C, CM450A; Kawasaki: several 1972 750 H2's; Suzuki: TC90J.

Bikes I want: CX650ED, a mid-sized japanese V-twin with ABS.

Offline raymond10078

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Re: Countershaft seals
« Reply #2 on: April 23, 2012, 11:00:02 AM »
Another option:

National Oil Seal 710422 (is a 34x62x10)

If you can't get the original Honda one, then I'd set the seal depth so that the seal contacts the countershaft in the same location as stock.  You just may have a seal that is not set to its full depth.
« Last Edit: April 23, 2012, 12:32:06 PM by kandrtech »
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1978 CB750A (upgrading very, very slowly)

Past bikes - Honda: SL350, CX650C, CB900C, CB1000C, CM450A; Kawasaki: several 1972 750 H2's; Suzuki: TC90J.

Bikes I want: CX650ED, a mid-sized japanese V-twin with ABS.

Offline jonnycakes

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Re: Countershaft seals
« Reply #3 on: May 14, 2012, 02:15:49 PM »
These guys have a lot of them........http://www.westernhillshondayamaha.com/
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Offline salukispeed

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Re: Countershaft seals
« Reply #4 on: May 17, 2012, 06:54:30 PM »
I ordered a countershaft seal from the westernhillshondayamaha and in 4 days it was at my door $19.22 including shipping. Seemd like a good lead for parts for us
Thanks for the tip
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1974 CB750 K4
1970 CT70
1966 CA77 (305 Dream)
1984 GL1200 Interstate
1977 750A
1972 CL100
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