[ROVERNET - UK] transmission leaks

[Steve Pepper]

Peter,

I've got a similar problem with my 1972 P5b fitted with a BW35 box, I traced the leak to the thread of the inhibitor switch. The car
does seem to lose more oil when its not in use. 

I know other P5b owners have said that they lose gearbox oil when the car's laid up, one theory is that over time the fluid runs
back into sump and probably weeps out of a beather on the box.

Steve P

-----Original Message-----
From: rovernet-bounces at lyris.ccdata.com [mailto:rovernet-bounces at lyris.ccdata.com] On Behalf Of Bill Daddis
Sent: 11 February 2005 15:12
To: rovernet at lyris.ccdata.com
Subject: Re: [ROVERNET - UK] transmission leaks

Hi Peter,

You're spot-on on all three counts.  The seals are a synthetic 
material that stiffens up in cold weather and hence doesn't 
necessarily conform as well to the shaft that they are supposed to 
seal to.

The seals aren't hard to get, but the transmission has to come out 
to replace the front one. (My son's P6B leaks ATF at about a rate of 
1 quart every 60 miles.  Really needs attention!)

Cheers,

Bill D.


On 11 Feb 05, at 8:37, peter king wrote:

> Hello all.
> 
> A question re: transmission leaks:
> 
> Last winter, my '67 MKIII dumped a couple of quarts of transmission
> fluid while parked for the winter in the garage. In the spring, I
> refilled it and drove it quite a bit with little or no fluid loss. It
> has not lost any fluid yet this winter (sitting). This winter, my '70
> 3500s has developed a leak while sitting, and is leaking fluid slowly
> but steadily. I'm looking forward to warm weather to see if the
> leaking stops.
> 
> Could this be caused by seals contracting in cold weather?  Is this
> common? Does it suggest a need for replacing seals?
> 
> Thanks for your thoughts,
> 
> Peter
> 
> 
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Aurora, Ontario, Canada
The Toronto Area Rover Club

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