[TR] TR3 Oil Pan Leakage

[J.C. Hassall]

If locating the leak is difficult, you might try white baking flour or oil
dye.  The dye fluoresces under UV light.

hth

jim

On Fri, Jul 29, 2022 at 3:58 PM DAVE HOGYE <dlhogye at comcast.net> wrote:

> I too have had difficulty making a leak free engine on my street/race
> TR3.  I also had an oil drop on almost every pan bolt head.  I resealed the
> pan a couple times finding that the sealant had almost no adhesion to the
> aluminum filler block in front.  So I thought that where the leak was
> coming from.  I think I tried both the gray and black Permatex.  After
> pulling the engine for a refresh, I found that the oil leak was most likely
> coming from between the engine mount plate and the block.  I had used the
> red spray-on High Tack sealant on that gasket.  The gasket peeled cleanly
> off the block and plate and was saturated with oil.  Oil never dripped from
> the pan or engine.  It was pushed back while in motion and always dripped
> off the trans bell housing.  I developed an easy to change, disposable shop
> towel hanger out of safety wire between the two lowest bell housing
> flywheel cover bolts and never had a drop of oil on the garage floor.  I
> changed the towel before a race weekend.
> One think I was happy to find, was that the rear main seal was definitely
> not leaking.
> If I find a photo of the oil diaper arrangement, I'll share it.
> Dave H.
>
> On 07/29/2022 7:50 AM Cliff Hansen <cliff_hansen at outlook.com> wrote:
>
>
> Bill,
>
>
> Following.
>
>
> I replaced the pan gasket on my TR4A about a year ago. I carefully leveled
> the mating surface using a dolly then a file, new gasket with Permatex #2,
> and actually used a in-lb torque wrench. Before it leaked moderately from
> the pan-to-block join. Now it leaks slooowly, accumulating a drop at almost
> every bolt head, even the bolts that don’t pass into the interior of the
> engine. It’s frustrating because I’ve managed to solve every other leak.
>
>
> Cliff
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows
>
>
> *From: *William Brewer <billbrewer59 at yahoo.com>
> *Sent: *Thursday, July 28, 2022 8:19 PM
> *To: *Triumph List <triumphs at autox.team.net>
> *Subject: *[TR] TR3 Oil Pan Leakage
>
>
>      I have been trying to get the oil pan to quit being so leaky for
> over 30 years and two engine rebuilds now. I made sure that the bolt
> holes in the pan are lower than the mounting surface. I check the pan
> fit with a feeler gauge with no gasket. I get everything cleaned off. I
> have tried Permatex, Aviation Permatex and Hylomar Blue. I have used the
> recommended torques. Still slowly seeping and dripping over time. It
> seems worse in the front that the rear and no the front aluminum sealing
> block isn't stripped out.
>
>       I have family members asking me not to bring the TR3 and Morgan
> over to their houses because of the amount of drips.
>
>       I have looking over the "Triumph Experience" website and it looks
> like most owners there have thrown their hands up and given up. Either
> that or the ones that say that they are drip free probably haven't
> driven their cars much.
>
>       I've considered CNC'ing a 3/8" steel mounting flange, welding that
> to the top of the oil sump (the weld would seal on the inside) and then
> torquing that sonofabitch down tight with permatex on it. No more
> worrying about flange distortion.
>
>       I've also considered making a sheet metal "catch box" that would
> mount under the pan and completely enclose it to catch drips. It could
> be held on with 4 bolts and removed/cleaned out at oil changes. I should
> make a long aluminum drip pan that goes under the sump, rear seal and
> transmission.
>
>       Anyone ever get there TR2/3/4 oil pans to stay drip free?
>
>       -Bill Brewer
>
>       Morro Bay, CA
>
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-- 
jim  W4BEA

The democracy will cease to exist when you take away from those who are
willing to work and give to those who would not.
Thomas Jefferson

I sometimes feel bad for the smart people - being simple-minded and easily
entertained is totally the way to go! ;-)
J. Stoll
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