[TR] TR4A carburetors woes

Jeff piggerp at comcast.net
Sun Jul 6 17:18:44 MDT 2014

Thanks for the input.  I'm ordering the viton tip needle.  My fuel pump is
the stock mechanical pump.  Can that put out to much pressure?

-----Original Message-----
From: Randall [mailto:TR3driver at ca.rr.com] 
Sent: Saturday, July 05, 2014 6:40 PM
To: 'Jeff'; triumphs at autox.team.net
Subject: RE: [TR] TR4A carburetors woes

> When I take it for a spin though I can only get about 2 
> blocks and it starts
> missing badly.  I get it home and pull the plugs and they are 
> really sooty.

Others will disagree, I'm sure.  But my first step would be to replace the
Grose Jets with the proper needle valves.  I don't fully
understand why, but I've fixed several cars with similar symptoms that way.

Or if you happen to have an adjustable fuel pressure regulator installed,
try turning it down a bit.


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