Topic: chain greaser

[_mark]

hi guys.

I have a little trouble. each time I use the bike, I find on the floor some drops of oil that comes from the wheel pivot of rear swingarm (both sides, especially chain side) and is also spreaded a little around (on exhausts on swingarm, etc)
Initially there were many drops of clear oil, now the oil is less and darker.
Some people aviced me that probably is the automatic greaser of the chain that located on the pinion.






I didn't found such device on the part list (only on user manual but not a particoular explanation). Can someone explain me how to adjust it ? thanks.
Regards.

[CycleRanger]

The chain oiler is located at the drive sprocket.

Download a copy of the service manual. It will tell you how to adjust it.
Most folks don't use it.

http://www.honda4fun.com/materiale-documentazione-tecnica/shop-manual

[PeWe]

The chain oiler was Honda's trick to make the English bike owners to like CB750, right? They were used with the oil dripping everywhere... Honda fulfilled their needs...possible to switch off too..

[_mark]

Thanks for the answers. Is possible to regulate it too? or is only on/off  ? thanks

[CycleRanger]

Thanks for the answers. Is possible to regulate it too? or is only on/off  ? thanks

Check the shop manual. It is adjustable, sort of.

[70CB750]

Yes, it is possible to regulate it but I just made a plug from piece of 6061 and  o-ring and closed it for good.  It could actully be plugged with an old spark plug 

[_mark]

thank you every one I'll check in the next days.

[_mark]

Hi guys I just came to the screw. But I have to undo the first bolt of pinion to rotate the screw.
The first bolt of the pinion is left o right to open? Which tool shall I use to undo it? the bike shall be in neutral or in first gear? How I reclose the bolt? do I need a dyno wrench? Thanks in advance.

[70CB750]

All regular bolts, left to loosen right to tighten.  Put it in gear to stop the sprocket (aka pinion) from spinning.

No need for torque wrench.

[_mark]

thanks

[_mark]

Hi guys I tightened the screw but oil was escaping again.

I removed the the nut and I found that orifice rubber was missing!











It seems to be really difficoult to find the spare for the rubber .. I must change the continent to find one...

http://www.ebay.it/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9

 what I do I ? use a rubber from plumbers for tap valves?   

Thanks

[evanphi]

Do you have a marine supply shop nearby? Or just look online...

Get a rubber transom plug. You can use that rubber piece to replace what was lost. You'll have to modify it, of course, to fit.

[CycleRanger]

Hi guys I tightened the screw but oil was escaping again.

I removed the the nut and I found that orifice rubber was missing!

It seems to be really difficult to find the spare for the rubber .. I must change the continent to find one...

http://www.ebay.it/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9

 what I do I ? use a rubber from plumbers for tap valves?   

Thanks

That part, 23524-300-310, still shows available from Honda, at least here in the states.

[chewbacca5000]

Hi guys I tightened the screw but oil was escaping again.

I removed the the nut and I found that orifice rubber was missing!

It seems to be really difficult to find the spare for the rubber .. I must change the continent to find one...

http://www.ebay.it/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9

 what I do I ? use a rubber from plumbers for tap valves?   

Thanks

That part, 23524-300-310, still shows available from Honda, at least here in the states.

Your going to want to order that part before riding any further.  I almost went down due to this last year.  While you have the sprocket off thread an o-ring through the oiler holes and trim the excess with an exacto knife.  Don't worry about it staying in place the sprocket holds the o-ring into place and shut off that oily mess for good.

[_mark]

Hi guys I tightened the screw but oil was escaping again.

I removed the the nut and I found that orifice rubber was missing!

It seems to be really difficult to find the spare for the rubber .. I must change the continent to find one...

http://www.ebay.it/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9

 what I do I ? use a rubber from plumbers for tap valves?   

Thanks

That part, 23524-300-310, still shows available from Honda, at least here in the states.

Thanks, this part number is the oil felt, not the oil orifice rubber. By the way I'm afraid to have damaged it by tightening the screw (see the hole in the first photo). I'm interested to complety stop the oil, not to regulate it. I have still to understand how this szstem is working...

[_mark]

Hi guys I tightened the screw but oil was escaping again.

I removed the the nut and I found that orifice rubber was missing!

It seems to be really difficult to find the spare for the rubber .. I must change the continent to find one...

http://www.ebay.it/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9

 what I do I ? use a rubber from plumbers for tap valves?   

Thanks

That part, 23524-300-310, still shows available from Honda, at least here in the states.

Your going to want to order that part before riding any further.  I almost went down due to this last year.  While you have the sprocket off thread an o-ring through the oiler holes and trim the excess with an exacto knife.  Don't worry about it staying in place the sprocket holds the o-ring into place and shut off that oily mess for good.

I'm sorry but my english is not so good and I don't fully understand. In few word you just tell to adapt a cylinder of rubber into the hole (roughly same diameter) and close ? Is correct? thanks

[_mark]

Oil dripping is from the radial hole of the toothed shaft? If yes in this case a compressed rubber cylinder should be enough and the damaged felt not important..

[chewbacca5000]

Yes.   The small hole in that shaft is where the oil comes out.  To stop it you need to order the stopper plus thread an o-ring in that small hole. 


Link to that part.

http://www.ebay.com/itm/73-Honda-CB750-Engine-Final-Driven-Shaft-Rubber-Orifice-OEM-Transmission-/322014561069?hash=item4af990432d:g:RZMAAOSwoQ1Tn3~9&rmvSB=true

[_mark]

Thanks, The part is not available in Europe.
I will try to build a cylinder like this:



external diameter same like the hole, internal diameter same like the spine in the screw.
With the effect of the pressure, the cylinder should overlap (see red circle) and close the radial hole for oil dripping and proof also in the bottom the damaged felt.
Any comment?

[_mark]

Hi guys. I try this solution. I have bought a 12,5 mm O-Ring. I coupled it with a washer of same dimension (see photos).
With this solution the shaft should be sealed. What you think about ? May be was better to don't introdce the washer (the screw can overlap the oring itself). Thanks Bye.





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