[TR] TR Rear Crank Seal Rope?

[Frank Fisher]

 there are 2 aftermarket kits around. one requires the crank to be machined the other not.i have done 2 that required the crank be machined.i found in both cases that i needed to shim something. te new scroll seal was interfering with the flywheel. im thinking i had to shim the flywheel with a single washer. just be sure you check that things turn ok with the transmission mounted before you put it in the car. yes i put it in the car the first time without checking.its been more that 10 years since i did those builds so forgive the memory.the other thing i did when assembling the scroll and seal was:1) make sure the scroll and rubber seal are very clean by wiping with alcohol or similar.2) then i wiped the crankshaft at the point of touching the seal with oil on my fingers. just enough to leave a thin film. 3) where the rubber seal comes together i applied some RTV silicone adhesive to the joint. its ok if it oozes a little as the oil on the crank will not allow it to stick to the crank.4) once assembled let it sit for about a week to let the sealant fully cure. do not turn the crank, do not move any parts.having done this method twice i have had what id like to say is no leak, but a small stain occasionally has been experienced.

 on the seal that does not require machining it was a lot better and less work. cant remember if i had interference with that one.
best of luck
Frank
    On Monday, February 10, 2025 at 03:21:31 PM PST, <rjray.architect at gmail.com> wrote:  
 
 
I bought the rear seal kit from The Roadster Factory.

  

Moss may carry the same kit.

  

  

  

From: Dave MacKay <dave at mdmackay.ca> 
Sent: Monday, February 10, 2025 2:54 PM
To: triumphs at autox.team.net
Cc: rjray.architect at gmail.com
Subject: Re: [TR] TR Rear Crank Seal Rope?

  

Which after-market kit did you use in your TR3A?

 

I installed one long (>15 years) ago but it wasn’t effective. I’d be interested in one known to work.

 

TIA

 

Dave MacKay

1960 TR3A s/n 68639L

near Toronto, Canada

 

>Date: Sun, 9 Feb 2025 16:45:44 -0600

>From: <rjray.architect at gmail.com>

>To: "'Carl Sereda'" <carlsereda at aol.com>,           <triumphs at autox.team.net>

>Subject: Re: [TR] TR Rear Crank Seal Rope?

> 

>Carl,

> 

>I was not aware of the ropes used on other British cars, other than my Austin-Healey, which still originally leaked oil at the rear crank area.

> 

>For both my TR3a and Healey, I installed the after-marked rear seal kits, which eliminated all oil leaks from the rear crankshaft area.

 
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