After reading in Stan Shenton's book, some years ago, that E3134 only refers to a cam profile and is not actually a part number for a camshaft per se (page 30 - 31) I have always thought this to be the case. In my T110 motor the cams have other part numbers cast in, but have E3134 engraved by hand on them, which bears out the comment by Mr S. However, and here in lays the rub, I have recently got hold of a copy of the 1957 TriCor catalogue and there is a E3134 camshaft pictured. So anybody know what's the true tale here?
Thanks for that Thrasher, I never suspected that the original cams were in the Ton Ten, although it's a May '54 motor so the originals were, probably, the top of the tree at the time. I've just put it in as a part number in the British Only search and it came back with it as a camshaft, so I guess that answers my question.
But, that of course implies that the Gospel according to Mr Shenton is not 100 per cent bona fide
There is no mystery here. I have, and have had a number of cams stamped E3134, but they always changed parts nos as they evolved. The exhaust cam on the unit twins changed part no for obvious reasons as they were redesigned for exhaust cam points drive, the inlet cam changed part no at the same time for less obvious reasons to separate them from the non-unit ones. There were changes to surface treatment, and perhaps other subtle changes over the years, each time with a new name. Shenton may be read as implying that the E3134 never excisted as a part number for a specific cam, but it did.
E3134 was a part number but the profile was so popular that it stuck and many cams afterwards used the same profile but with a different part number. BTW, the old timers call it the "Q" cam. Cheers, Bill
Bikes 1974 Commando 1985 Honda Nighthawk 650 1957 Thunderbird/T110 "Flying Tiger" Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.
FWIW had a 1960 T110 in 1965 and I fitted E3134 cams which were the cams used on the 1960 and possibly later T120s. From memory they had the same lift but had a broader profile. I also fitted twin carbs using an aftermarket manifold on the T110 head and 9:1 pistons.