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Re: TRactor Engine Overheating

To: TR <triumphs@Autox.Team.Net>
Subject: Re: TRactor Engine Overheating
From: Geo Hahn <ahwahnee@cybertrails.com>
Date: Thu, 07 Oct 2004 16:36:41 -0700
References: <01C4ABF3.DA3F4A40.pdonnel1@san.rr.com>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
John & Patricia Donnelly wrote:

>...having the coolant tested for exhaust gases (also known as a block test). 
>We 
>believe that the head gasket may have burnt through, especially since I have 
>87 
>mm pistons and there have been similar type problems with these gaskets in the 
>past with the bigger liners. A compression test, nor a cooling system pressure 
>test wouldn't find this type of problem.
>
FWIW -- I once tested for and found this problem (on a Fiat) by 
stretching a balloon over the radiator neck and pumping air into each 
cylinder one at a time (using the spark plug hole fitting from my 
compression tester) until I found one cylinder that inflated the 
balloon.  If you don't have a big enough balloon you can probably find 
something suitable in most gas station restrooms.

The 'sniff test' should be conclusive but the balloon method had a 
certain "Mr Wizard" quality to it.

Geo Hahn
59 TR3A
64 TR4
Mt Lemmon, AZ

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