[TR] sputtering TR3

dorpaul dorpaul at bellsouth.net
Thu Apr 17 12:22:56 MDT 2008


yes your 87mm pistons is the larger displacement (2038cc).
I have the model 40795, 1967 TR4 distributor on my 1960 TR3.  Originally, it
had 83mm pistons, yielding 1968?cc, but I was told by experts that the
standard improvement was to boost it to 87mm.  But that doing so required a
TR4 distributor.
    Knowing little, I imformed my 'well-respected machine shop'.  Being
grown-up bikers, they bored my jugs to the new dimensions.  I've yet to drive
a Triumph- I am working on the wiring at the present.

Thanks, Paul Dorsey

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