Oil Leak

301, 401, plinths and assorted idler stuff
Andrew
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#1 Oil Leak

Post by Andrew »

My 401 is leaking oil from the bottom of the spindle housing where two screws hold a small plate on.

I tried to take of photo of the offending bit.

Any idea what's going on chaps? Do they all do that, sir. Or, is there a seal missing?

The screws seem pretty tight and, judging by the marks on them, someone has tried to either tighten them up or the base cover plate has been off at some point in the past.

much appreciated.

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simon
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#2

Post by simon »

Yeah mine does too Andrew. I suspect most of them do.

There should be a gasket between housing and bottom plate and I've tried soaking in oil which I'd read somewhere was the thing to do. But didn't work.

Also tried vaseline, which didn't work. Neither did grease.

I think gasket sealer is probably the solution and Halfords sell a tube for 6 quid or so. It's silicone so I wonder how different it is for the big tube of stuff I use for sealing round the bath?

I think there's one or two here that know what to do so let's see what they say.
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#3

Post by Andrew »

Ah, they all do that sir.

(Bit like Series Land Rover axles then)....

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pre65
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#4

Post by pre65 »

If both surfaces are perfectly flat then sealing should not be a problem !

I would suggest a bit of fine wet and dry on a perfectly flat surface (glass !) and then rub both mating surfaces on the wet and dry till there are no high (or low) marks. Then clean well before re-assembling.

Use the oiled gasket or a smidge of gasker sealer (silicone variety preferably) and don't overtighten the fixing screws.

Just cos British motorcycles leak oil it does not mean British turntables should as well !!
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cressy
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#5

Post by cressy »

just like an old brit bike! having to lap a cylinder head in using a mirror and a tub of grinding paste is a thing of the past shirley...........
however, abit of grinding paste and a mirror'd probably do the trick. only thing with the silicone sealant is that after about ten years the oil in the bearing might eat away at it :lol: is this a risk youre willing to take? :lol:

(at least its not a cvh or cx 500 cylinder head as that might take quite a few tubs of grinding paste.......)
Will
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#6

Post by Will »

Andrew I had a leak at Owston (DTB enter here) but the bearing was hot,

I now use this ....

http://cgi.ebay.co.uk/Quantum-Hot-Sauce ... 7C294%3A50





.
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Dave the bass
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#7

Post by Dave the bass »

Will wrote:Andrew I had a leak at Owston (DTB enter here)
.
.....you told me it was slurry..... :shock: :)

DTB
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Andrew
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#8

Post by Andrew »

With a name like "Hot Sauce Grease" I'm surprised DTB hasn't had a field day.

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#9

Post by Andrew »

Well I could take the Land Rover approach and keep topping up it. ;)

Seriously, tho' wouldn't I need to lap in both sides, that's quite a bit of dismantling on a TT that ain't broke, well apart from a small leak when it gets warm. I'm tempted to try some of the old RTV (Room Temperature Vulcanizing) or in modern vernacular silicon sealant.

cheers,

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#10

Post by Andrew »

Will wrote:Andrew I had a leak at Owston (DTB enter here) but the bearing was hot,

I now use this ....

http://cgi.ebay.co.uk/Quantum-Hot-Sauce ... 7C294%3A50



.
Will, thanks, but isn't yours a 401 too, hence an oil bearing, is this the same viscosity as oil, does it mix OK with the oil? I assume its all OK as you have had no problems with it?

cheers,

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#11

Post by Andrew »

Andrew
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#12

Post by Andrew »

Will
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#13

Post by Will »

No problems its more of a Gel than a sticky grease its very slick.
Start up is fast and does about a dozen spins on shut down.
I think Darren got hold of a Gel with the same composition (secret) for use in oil bearings, it will be on his site.
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#14

Post by Andrew »

Does anyone want to share postage? I have ordered one but can go back and add another?

cheers,

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#15

Post by Will »

If its Hot Sauce Yes.
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