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Author Topic: seems to be a decent video on cb750 fork seal replacement  (Read 1002 times)

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Offline avoca

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seems to be a decent video on cb750 fork seal replacement
« on: January 27, 2015, 01:44:05 PM »

not sure if youtube videos are allowed to be posted but this seems like one of the few, if the only video, on fork seal replacement for the CB750.  might be the same for the others models but not sure.
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Offline PeWe

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Re: seems to be a decent video on cb750 fork seal replacement
« Reply #1 on: January 27, 2015, 02:16:24 PM »
There are more descriptions.
http://www.salocal.com/sohc/tech/frkng/frkng.htm

About the seal itself. I could not get a new pair of 11mm sloppy seals to seal. It leaked a lot direct with new fork tubes from Cycle X.
First 11mm seals from Cycle X, then Honda marked from Germany that looked the same. Finally the better ones as I have used before and should be used according to Honda Service Bulletine. see attachment
I ordered a much better from David Silver, same model as Honda describe as the newer seal replacing the old 11mm in a bulletine.
91255-341-305
http://www.davidsilverspares.co.uk/parts/by-part-number/partnumber_91255341305/


Once I saw it, I got a recall that this was the seal I used 1979 and 1983. Very rigid. I heated the lower fork tube with a heatgun, oiled the entire seal with fork oil and hammered it down with help of socket with almost same outer dimension as the seal.

 I do not know why most of the part dealers use the old and for my bike crappy leaking seal.

My bike is CB750 K6 -76
« Last Edit: January 27, 2015, 02:18:26 PM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline avoca

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Re: seems to be a decent video on cb750 fork seal replacement
« Reply #2 on: January 27, 2015, 03:13:02 PM »
Cool! Thanks for the info :)
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Offline HondanutRider

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Re: seems to be a decent video on cb750 fork seal replacement
« Reply #3 on: January 28, 2015, 04:50:44 AM »
Quote from: avoca on January 27, 2015, 01:44:05 PM

not sure if youtube videos are allowed to be posted but this seems like one of the few, if the only video, on fork seal replacement for the CB750.  might be the same for the others models but not sure.

Looks like a good video for the DOHC CB750.  I have the exact 1981 model and it needs the seals replaced so this should be a good guide.  The only thing I would comment is that they didn't use fork oil  ??? and their measurement of quantity added didn't seem too precise  :-X.  I would also have disassembled the dust seal (off the tube) to clean the dirt and oil out of it that seemed to still be present after the new seal was installed.
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Offline avoca

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Re: seems to be a decent video on cb750 fork seal replacement
« Reply #4 on: January 28, 2015, 11:14:55 AM »
yeah I think it's just more of like a what parts are where and order of operations... take the time, clean everything 100% :)
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