Author Topic: shifter shaft seal (Read 14676 times)

skamagedon · « **on:** May 19, 2011, 05:51:18 PM »

what is the technical name for the oil seal at the shifter(gear selector?) shaft, or an ebay link would be just as sweet. i need a new one and dont want to get the whole kit.

honda_jason · « **Reply #1 on:** May 19, 2011, 06:11:07 PM »

i just replaced mine...you can find it here: www.bikebandit.com part number 729774 (1989871-001)

skamagedon · « **Reply #2 on:** May 19, 2011, 06:13:26 PM »

thumbs up! Also....nice bike

honda_jason · « **Reply #3 on:** May 19, 2011, 06:20:29 PM »

thank you sir. make sure you put it in there good...goes in almost like a bearing. grease it up nice too!

skamagedon · « **Reply #4 on:** May 19, 2011, 06:32:57 PM »

how difficult to get the old one out?

honda_jason · « **Reply #5 on:** May 19, 2011, 06:37:43 PM »

pretty easy...just put a flat head inside it and wedge it out...when i put my new one in i greased it and pushed it in and then used a socket that was just smaller than it to push it all the way in

TwoTired · « **Reply #6 on:** May 19, 2011, 06:41:02 PM »

Quote from: skamagedon on May 19, 2011, 06:32:57 PM

how difficult to get the old one out?

Simple with the right technique. Pierce the old seal with a narrow, pointy, flat blade screwdriver about a blade width or two in from the outer rim. Pries out easily after that. New one just presses into place, but better to put a little tape on the shaft splines to keep from nicking the new seal lip.

Cheers,

skamagedon · « **Reply #7 on:** May 19, 2011, 06:59:47 PM »

sounds like i dont need to remove the shaft or take the motor apart, am i correctly assumin?

honda_jason · « **Reply #8 on:** May 19, 2011, 07:01:30 PM »

yupp you are correct. just drain the oil and take the left case off. if you cant get the old one out then youll have to take the clutch cover off and remove the clutch plates and basket and take the shaft out which makes it way easier without that much work.

Johnie · « **Reply #9 on:** May 19, 2011, 07:08:23 PM »

Make sure you clean that shaft before sliding that seal in place too.

TwoTired · « **Reply #10 on:** May 19, 2011, 09:14:34 PM »

You don't need to drain the oil, or take the shaft off.
Remove foot peg, shift lever, and sprocket cover, though.

DanielB · « **Reply #11 on:** May 20, 2011, 08:34:14 AM »

Is there any other place to buy this seal?

It would cost me 7 dollars in shipping for the seal and its only a $4 part.

Silverback · « **Reply #12 on:** May 20, 2011, 08:37:46 AM »

Do you have a local Honda dealer? They can order it for you.

Scott S · « **Reply #13 on:** May 20, 2011, 10:23:18 AM »

Order two. There's a decent chance that you'll damage one.

I used a piece of PVC pipe that was the same size as the seal. Pressed in in as even and flat as I could by and, then used the PVC pipe and a hammer to tap it in flush.

jonlewis666 · « **Reply #14 on:** October 14, 2012, 02:48:45 AM »

Thanks to all for the advice on the gearshift shaft seal issue so just thought I would drop in my post fitment advice? The sel on mine was 'toast' after I used the shaft as a handle when moving the engine lump around the workshop wilst doing a top-end overhaul (silly ejjit that I am!). Two things i learn the hard way, ruined three seals, for sure take out the shft from the clutch side, doesn't take long and use a genuine honda seal as regular ones donlt have the square cut edge.

Once shaft is out and recess cleaned up nice with planty of grease, new seal simply taps in with the aid of a righ size socket and plastic mallet and my previously 'incontinent' CB500K is now a joy to ride again.

Duanob · « **Reply #15 on:** October 16, 2012, 09:05:41 AM »

While you're in there you might think about changing the output shaft seal and the oil-pump o-rings (3) as well. they all have a tendency to leak eventually.

jonlewis666 · « **Reply #16 on:** December 31, 2012, 03:14:35 AM »

Thanks Daunob, I did just that and apologies for not getting back sooner. Jon

grasscutter · « **Reply #17 on:** December 31, 2012, 09:40:10 AM »

Quote from: jonlewis666 on October 14, 2012, 02:48:45 AM

Two things i learn the hard way, ruined three seals, for sure take out the shft from the clutch side, doesn't take long and use a genuine honda seal as regular ones donlt have the square cut edge.

Huh?? From clutch side?
So, you're going to take the entire clutch basket out?
Why?

Let me just say this: NO!

Just do as the other posters said.
TwoTired summed it up nicely. Here it is again, in case you posted your response without reading the rest of them.
<<<You don't need to drain the oil, or take the shaft off.
Remove foot peg, shift lever, and sprocket cover, though.>>>>

Pretty simple, eh?

Mooshie · « **Reply #18 on:** December 31, 2012, 12:45:31 PM »

Quote from: grasscutter on December 31, 2012, 09:40:10 AM

Quote from: jonlewis666 on October 14, 2012, 02:48:45 AM
Two things i learn the hard way, ruined three seals, for sure take out the shft from the clutch side, doesn't take long and use a genuine honda seal as regular ones donlt have the square cut edge.

Huh?? From clutch side?
So, you're going to take the entire clutch basket out?
Why?

Let me just say this: NO!

Just do as the other posters said.
TwoTired summed it up nicely. Here it is again, in case you posted your response without reading the rest of them.
<<<You don't need to drain the oil, or take the shaft off.
Remove foot peg, shift lever, and sprocket cover, though.>>>>

Pretty simple, eh?

Simple enough that even a girl did it!

grasscutter · « **Reply #19 on:** December 31, 2012, 03:18:09 PM »

Quote from: Duanob on October 16, 2012, 09:05:41 AM

While you're in there you might think about changing the output shaft seal and the oil-pump o-rings (3) as well. they all have a tendency to leak eventually.

You're talking about the seal under the front sprocket?
Wouldn't recommend that unless you can provide personal documentation that you can do that seal without splitting the cases.
Doing a search under that subject, brings up many many 'opinions'!

I can say from personal experience, that the CB650 seal has a center ridge to it.
You will absolutely NOT get it installed correctly without splitting the case.

But yes. Do the oil pump o-rings. Easy to do while you're 'in there'.

Pjm911 · « **Reply #20 on:** May 26, 2014, 03:36:52 PM »

Just an update on this topic - I used partzilla.com and oem honda parts were $2.84 each, I bought 2 and shipping was about $5. I ordered 2 just in case.

billingstitan · « **Reply #21 on:** May 26, 2014, 08:53:04 PM »

You can replace both the shifter seal and the seal under the sprocket by simply removing the side cover (and sprocket obv)

Best way I've found to extract them is to use a wood screw and CAREFULLY screw it into the rubber - don't go too deep and dont let it go sideways - pretty simple to accomplish. Once screw(a) are firmly set, just grip the screws w a couple pairs of pliers and pull evenly (you only need one screw for the shifter seal - two screws 180 degrees apart for the seal behind the sprocket)

It's explained above how to insert the shifter seal - the sprocket seal you need a very large socket - can pick up at harbor freight etc - PVC or whatev would prob do the same. Just needs to be same diameter as the outside of the seal.

Put a little fresh oil on the seal and the firmly tap it evenly into place. There is a lip but it snaps right in - just did mine two weeks ago.

thwrightstuff · « **Reply #22 on:** July 29, 2015, 10:48:05 AM »

Sorry to bring this thread back from the dead, but I'm having the exact same issues with you '80 CB650C. I ordered one already and installed it, but it was a little too small and it said the was the OEM one for my bike. What should the dimensions be for this seal on my bike? Any links people post seem to be obsolete. Your help would be greatly appreciated!

flybox1 · « **Reply #23 on:** July 29, 2015, 10:55:29 AM »

what is the honda part number of the one you ordered?

cross check it against this...
I think you are referring to #23 on the gearshift drum fiche.
http://www.cmsnl.com/honda-cb650c-1980-usa_model473/partslist/E++17.html#results

thwrightstuff · « **Reply #24 on:** July 29, 2015, 01:40:00 PM »

Hmm possibly, but I think the one I need is #24, form the looks of it. I just am not convinced it's the right size.

flybox1 · « **Reply #25 on:** July 29, 2015, 01:52:23 PM »

Quote from: thwrightstuff on July 29, 2015, 01:40:00 PM

Hmm possibly, but I think the one I need is #24, form the looks of it. I just am not convinced it's the right size.

did you not order a #24 last time?

Well, i can only say that many here only trust OEM Honda parts, and if #24 was the one i needed, I wouldn't hesitate to buy it.
did you compare the honda part number of the one you bought, with the one listed on the fiche?
you need to be sure of the model/year of your bike, and buy parts for it based on Honda part numbers.

Duanob · « **Reply #26 on:** July 29, 2015, 02:34:27 PM »

The drawing gives you the dimensions, just measure the old one.

http://www.cmsnl.com/honda-cb650c-1980-usa_model473/91204350003-oilseal-12-5x25x8_91204350005/#.VblGSvlVhBc

thwrightstuff · « **Reply #27 on:** July 30, 2015, 08:02:00 AM »

So I looked it up and this is the one I ordered from Bike Bandit, which appears to be bigger than the one on CMS? OIL SEAL 13.8X24X 729774. I think I'm doing something wrong. This one is too small already. The inner diameter is a perfect fit, but the outer diameter is too small and I had to use copper gasket to install it and make it seat. Advice?

http://www.bikebandit.com/oem-parts/detail/honda/91202-kfl-841/b729774

thwrightstuff · « **Reply #28 on:** July 30, 2015, 08:05:05 AM »

Call me stupid, because I'm being very stupid right now (I swear I'm not normally this slow), but what are the units of measure (mm)? and which measurement is each number referring to? I must be doing something wrong here.

flybox1 · « **Reply #29 on:** July 30, 2015, 08:42:53 AM »

Measured in mm, as this is a metric bike

ID x OD x Height(thickness)

Bike bandit 13.5 x 24 x ?

HONDA 12.5 x 25 x 8

The one you ordered from bike bandit is too big in the middle, and too small in total diameter, and doesnt even list a thickness.

Order HONDA only. Use CMSNL link i sent you above to find the correct part numbers to order from.
Do it right or do it over

thwrightstuff · « **Reply #30 on:** July 30, 2015, 11:06:49 AM »

Fair enough. I'd like to trust CMSNL and that diagram. It clearly says the exact make and model and year of my bike, but in the past I've come across misinformation. But if you guys all swear by it, then I can't say no. Thanks for the help doods! I'll let you know how it fits once it comes in, I'll be doing a deep carb tune and some other work this weekend.

Duanob · « **Reply #31 on:** July 30, 2015, 12:00:27 PM »

I just use any dealer's micrfiche for the part number then google it. Partzilla has been good at the right parts as well as other online stores. Even EBAY if its in the original packaging.

parm94 · « **Reply #32 on:** May 24, 2016, 07:47:08 PM »

Drain ~ 400ml. I learned the hard way.

News:

Author Topic: shifter shaft seal (Read 14676 times)