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Bell Crank Pivot Pin, Oil Leak


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#1 Sammy D

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Posted 11 October 2008 - 11:52 AM

I'm talking about this part;

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On the underside of your gearbox you can see a big metal disk, that metal disk is the part above which holds all of your gearchange levers. They are all secured on with a nyloc nut at the top which pulls this big metal disk up tight against the bottom of the gearbox with an o-ring between to seal it. Usually there's never any problems with it.

However, I have quite a bad oil leak coming from it. I thought it was the usual selector seal (which was also leaking) but until I got propperly under the car I could see that the big metal disk had dropped down and was loose in the casing giving a steady stream of a couple of drips every 10 seconds or so.

This is a problem, not because of it just being an oil leak, but because of why it is leaking. The nyloc nut pulling it tight in the gearbox has to have come loose (god knows how, the 'box was rebuilt by John Guess who also loctites the nyloc on), or the o ring to have perished. The amount that it's loose by though, has to be a loose nut.

Worse still, if this nut has come off all together, I'll loose my gears and cause a massive oil slick on the road while driving, and it the nut/washers/selectors get sloshed into a spinning gear... Bang. See you later gearbox.

The most annoying thing is, is that I have only had this engine in less than a few months and now I've got to take off my brakes/hubs, driveshafts, exhaust/inlet, electrical bits, engine out, flywheel off, bell housing off, gearbox off, strip the gearbox and replace this bloody nut and oring. All that for one nut!!

Has anyone else had this problem?

I'm thinking with a selection of mirrors, lights and general magic, I might be able to get to this nut by removing the diff rather than splitting the 'box/engine? It's kind of tucked round the corner in the 'box though. A grr.

Sam

Edited by Sammy D, 11 October 2008 - 11:53 AM.


#2 miniboo

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Posted 11 October 2008 - 04:17 PM

full strip down of gearbox required unfortunately. the mainshaft covers it up making it almost impossible to do anything with. also there is an o ring that you can replace under the bell crank lever selector shaft

#3 Sammy D

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Posted 11 October 2008 - 06:36 PM

I was thinking I might be able to get away with just taking the lay gears and oil pipe out and squeeze a spanner under that way?

Save faffing around with the double roller bearing.

#4 miniboo

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Posted 11 October 2008 - 07:01 PM

nope taking the oil pipe and layshaft is not going to help. i will get some pics for you.

#5 Sammy D

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Posted 11 October 2008 - 07:11 PM

Bummer. Looks like I'm going to have to fix my diy slide hammer for the 1st motion shaft and try and find some crank c-washers to get out the main shaft.

I really can't see how that nut could have come loose to be honest.

#6 miniboo

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Posted 11 October 2008 - 07:25 PM

maybe teh o ring has failed and that is why it is leaking?




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