-To the best of my knowledge the factory never issued a special piston for
any engine. I am certain I would have heard of this modification had it been
a factory involved fitting. Sound much like a piston froma after-market
source. It might be that this piston was readily available from local
sources at the time of the cars repair schedule ( rebuilt time).I have also
never heard of any special oiling problem with that engine. It was probably
one of the strongest TRIUMPH engines ever produced.---- Original
Message -----
From: Joe Curry <spitlist@gte.net>
To: Friends of Triumph <FOT@autox.team.net>
Sent: Monday, February 21, 2000 11:00 AM
Subject: Small bearing 1296 Spitfire engine
> This is particularly aimed at Kas, but if anyone has any inputs or
> observations please chime in!
>
> When I tore down the engine I will be using for my Race Car, I noticed
> that everything was Standard (Bore, bearings, etc.). But the number
> three piston was not the same as the other three. It had holes that
> were located either side of the wrist pin on both sides extending
> downward from the oil ring groove.
>
> I mentioned this to others who have the same engine and discovered that
> others have seen this same configuration. My question is: "Was this
> some sort of factory modification to solve an oiling problem with the
> third cylinder?"
>
> If so, what allowances should I make when building this up as a race
> engine?
>
> Regards,
> Joe Curry
>
> P.S. the piston is not stamped STANPART as the others are, but has the
> part number 18697 on both the top and inside.
> --
> "If you can't excel with talent, triumph with effort."
> -- Dave Weinbaum in National Enquirer
>
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