Tacho/rev counter drive oil pressure

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Hewitt OPC
Posts: 32
Joined: Thu Feb 20, 2014 10:55 pm
Name: Chris Hewitt

Tacho/rev counter drive oil pressure

Postby Hewitt OPC » Sun Sep 21, 2014 6:19 pm

Has anyone else had any issues with the smiths rev cable drive from the end of the camshaft?
my problem is excessive oil in the drive. I cured the leak from the two steel blanking plugs, only then to get oil dripping from the cable. I then cured that with an O ring only to then spring an oil leak in the cab behind the clocks!
The drive seems ok and not excessive play but I am usure of the correct tollerences. It makes sense to have a little lubricant reaching the cable but not enough to drip on my shoes whilst driving!
My engine has just had a full rebuild and new cam bushes line board with 2-3 thou slack. Engine oil pressure good and not excessive so the drive is the likely culprit.
I could easily seal the cable behind the dash too but I really want to solve the issue correctly.
It could be that it cures itself once run in.
Last edited by Hewitt OPC on Tue Sep 30, 2014 10:15 pm, edited 1 time in total.

Peter Martin
Posts: 161
Joined: Tue May 22, 2012 5:26 pm
Name: Peter Martin

Re: Tacho/rev counter drive oil pressure

Postby Peter Martin » Mon Sep 22, 2014 10:04 am

Chris

Not had the problem,hot oil in cockpit not good. Looks like the oil seal at the end of the camshaft is leaking .The part no for TD/E's is C5511 so almost certainly the same for your TF, probably an engine out job ,bad luck

Peter

Hewitt OPC
Posts: 32
Joined: Thu Feb 20, 2014 10:55 pm
Name: Chris Hewitt

Re: Tacho/rev counter drive oil pressure

Postby Hewitt OPC » Mon Sep 22, 2014 4:35 pm

Thank you Peter
your diagnosis is unfortunately correct. Just home from work and with the fear etched in my mind from your responce, the spanners came out!
A 110 degree endoscope gave me a close up view of the seal and confirms the issue.
Thankfully the fix isn't quite as drastic as engine out though, at very worst it is removal of the waterpump housing and i have just ordered the new seal at just over £10 plus p&p PHEW!!
She'll be back on the road by the end of the week

Hewitt OPC
Posts: 32
Joined: Thu Feb 20, 2014 10:55 pm
Name: Chris Hewitt

Re: Tacho/rev counter drive oil pressure

Postby Hewitt OPC » Tue Sep 23, 2014 9:33 am

endoscope image of damaged seal

not sure how it got missed in the rebuild, complete gasket and seal kit fitted but obviously wasn't quite complete.


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