[TR] TR3 gearbox oil leak

[Carl-TR]

There are only so many (or few) places for oil to leak from the gearbox.

I have my doubts that that is the problem.

 

Can the underside be cleaned sufficiently to have a 'clean' look to it from
the below?

If so, I suggest cleaning it, topping up the oil and take it for a very
short drive - enough to engage the overdrive.

Park the car overnight on some clean newspaper or something else to see
where it is leaking.

 

Then put it up on a lift and see if you can then see where the oil is coming
from.  Oil spots on the paper are 'bread crumbs'   

Possibilities - 

Make sure all bolts on oil pan and gearbox are tight.  If oil is coming from
one of the bolt areas - gasket could be torn?

oil pan warped and seeping out that way?

Rear oil seal?

 

If not the oil pan or loose bolts - no way to do anything but pull gearbox
and maybe engine.

 

C.

 

Carl Musson

1960 Triumph TR3A

TS81802LO

Tampa Bay Florida

 

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Andrew
Uprichard
Sent: Monday, November 30, 2015 6:25 PM
To: triumphs at autox.team.net
Subject: [TR] TR3 gearbox oil leak

 

What do you all think about a car (fortunately not mine) with a supposedly
rebuilt overdrive gearbox but which is leaking a cup and a half of oil every
200 miles?

 

The owner insists it is the gearbox and not the engine, although the leak is
hard to pinpoint.

 

I must confess my ignorance of gearboxes as I usually send them out to be
rebuilt by a guy I really trust.

 

So my question is, is there any type of gearbox leak which is amenable to a
fix other than pulling the gearbox out ?

 

Andrew Uprichard

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