[TR] Overheating Project

Jerry Van Vlack jerryvv at roadrunner.com
Sat Jul 7 04:17:10 MDT 2018

A quick way to determine a head gasket issue is to check the plugs. More often than not the plug in the cylinder that’s leaking will be very clean and almost white insulator when compared to the others.

From: Geo Hahn 
Sent: Friday, July 6, 2018 7:27 PM
To: erkanhassan at yahoo.com 
Cc: Triumphs 
Subject: Re: [TR] Overheating Project

Fan replacement is just a matter of the 4 bolts - though there may be a pair of locking tabs to undo depending on who has been there before and what they did. 

Certainly opening the petcock (or removing it entirely) should be part of any flush.  You may find it is clogged in which case fiddling in there with a bamboo skewer, stiff wire or even a drill may loosen things up.  As for where the water will come out if you put it into the heater hose connection - pretty much everywhere.

Have you assessed the condition of the timing chain and determined it & the sprockets are worn?

But what caught my eye was this statement...

  I would fill up the radiator, and go for a drive...overheat and fluid gone upon return....

The question is where did the fluid go?  If there was no obvious leaking or white smoke then there may be a failed head gasket letting coolant into the cylinders and out the exhaust.  A leak significant to show as coolant loss and overheating would not necessary have any visible traces in the exhaust.  One advantage of have antifreeze is that such a leak may be smelled more easily than it is seen.

But I am not sure there is much you can do to test that possiblity (short of head removal) at this point in disassembly.



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