SOHC.co.uk Forums > CB750

Tacho drive leaking oil

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dieffe:
Hi, I know it's not a new problem for you lot but it is driving me nuts. The oil is leaking from the tacho drive on the cam cover, which is not uncommon I gather.
How can this be fixed, I have been told to replace the oil seal but I am having the devil's own job getting the old one out, any hints?
Someone also told me that as they are quite a loose fit and a new seal might not do the job.
Is there a sure fire fix for this?

Ta.

Green1:
A small pick will get it out.
A new seal solved my leak

Mick

Green1:
Even cheap ones like these are one of the handiest  tools ever invented.

http://www.ebay.co.uk/itm/4-Hook-Pick-Set-Probe-Tool-Clips-Switches-Ring-Oil-TOOL-SET-/191490332004?pt=LH_DefaultDomain_3&hash=item2c95b69564

Mick

Spitfire:
This is how I got mine out after some advice from them that know better, I was a bit nervous about it but it worked a treat. http://forums.sohc4.net/index.php/topic,26190.msg268316.html#msg268316


Cheers

Dennis

dieffe:
Thanks Dennis, the wood screw idea worked brilliantly, put a new seal in and bingo, no leak.

Trouble now is I took it for the MOT, about a 10 mile round trip and there is oil coming out from somewhere near the bottom of the barrels, lots of oil. I thought maybe base gasket but the bottom four or five barrel fins are covered in oil at the front only and I can't think how the oil could travel up from the base gasket.
I read somewhere that the four round oil seals under the cam carriers should have sealant on them but I just put them in dry. If they let oil through where would it come out?

I am going to have to take the engine back out to sort this but it would be nice to have a head start so I can figure out what has gone pear-shaped.
"Do it right first time" comes the cry.  :-[

Oh, it passed the MOT though. :)

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