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Re: TR6 fuel pump query

To: TR <triumphs@autox.team.net>
Subject: Re: TR6 fuel pump query
From: Geo Hahn <ahwahnee@cybertrails.com>
Date: Thu, 25 Mar 2004 09:37:16 -0700
References: <BGEJKFFCGBNHGFCBCIAGOELCCIAA.suhringtr36@comcast.net>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
>Hello, the list.  I would like to survey the members here that are aquainted
>with fuel pump leaks...
>
"Acquainted" is one way of putting it.  You do not say if the fuel pump 
is working.  If it is, a rebuild may be unnecesary and may not even 
solve your problem.  Fuel leaks can creep about and make it difficult to 
know where the origin is but I would start with the inlet and outlet 
line.  These connections depend on the olive seating well into the 
pump.  If there is a burr or foreign matter there, if the fuel line 
extends too far past the olive or if the compression nut isn't tightened 
far enough in -- the olive will not seat.  The fuel bowl is also proe to 
leaking on the tractor engine -- not sure if this would occur on a 6.  
Could also be leaking around the diaphram but I have never had that 
occur -- I think one or more of the screws would have to be very loose 
for this to happen.

One trick for finding the leak point is to clean it up and get it dry -- 
then run the engine with a bit of brown paper towel (like you get at gas 
stations) against the likely spots for the leak.  The smallest drop will 
be immediately evident on such a towel as a dark spot.  FWIW -- I use 
teflon tape on the threads of the compression nut not as a sealant but 
to make it thread easier as it may need to crank down quite a bit to get 
the olive to seal.

Geo Hahn
59 TR3A
64 TR4
Mt Lemmon, AZ





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