That would explain why it has always been a tad difficult to start and I
just presumed a trait of the car. Steven N. states he uses NGK BP6HS 7331
plugs on his TR4, so I am going to try that, though NAPA had to order them.
Tim
----- Original Message -----
From: <zoboherald@aol.com>
To: <timipurdy@citlink.net>; <triumphs@autox.team.net>
Sent: Thursday, September 29, 2005 9:20 AM
Subject: Re: TR4 Starter Probs
> Tim, one thing in your post puzzles me:
>
> -----Original Message-----
> From: Tim I. Purdy <timipurdy@citlink.net>
>
> ...One item, and seeking anyone's opinion on this are the spark plugs. In
> determining the various problems, the starter one of which was replaced,
> had
> changed the plugs. The PO had 275 Champion....
>
> ==AM==
> I could be wrong, but near as I can tell, that "new" Champion
> back-references to a fairly cold "N" series plug. Two problems there would
> be that a: it's too cold a plug; and b: it's too long a plug for a TR4
> motor, which originally used the L87Y. "L" series plugs are 1/2" reach,
> while the "N" series plugs (normally found in TR250/6 and 1296cc and
> larger Spit motors) are 3/4" reach.
>
> --Andy Mace
>
> *Mrs Irrelevant: Oh, is it a jet?
> *Man: Well, no ... It's not so much of a jet, it's more your, er, Triumph
> Herald engine with wings.
> -- Cut-price Airlines Sketch, Monty Python's Flying Circus (22)
>
> Check out the North American Triumph Sports 6 (Vitesse 6) and Triumph
> Herald Database at its new URL: <http://triumph-herald.us>
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