- Tue Feb 07, 2017 11:22 am
#66071
As Dennis says, it is essential to clean out the sludge trap and to check the timing side crankshaft bush. The latter doesn't tend to cause the issues it used to on BSA A65 engines, when wear would cause cause oil pressure loss then catastrophic blow-up, but it needs to be kept within spec. It is crucial to change oil every 1,000 miles, in which case the engine should last well and there is no need to spend a lot of money on the bearing conversion that SRM now does for Triumphs as well as Beezas. (I never had the bottom end of my A65 Lightning apart in all the years I owned it, but I religiously changed the oil every 1,000 miles). The smaller iron barreled twins don't rattle too badly - listen to an all alloy engine like my pre-unit Tiger 100 or a BSA Barracuda/Starfire for deafening rattles (hence my forum monika) but the top end will be rattly compared to most. It's when they stop rattling that one should start to worry, especially if they stsrt running better - a Triumph goes best just before it bloes up......Spares are probably as good as they can get for a sixties English bike, except that the bathtub tinware will be harder to come by. The later bikini style was prettier, but I would avoid anyhting with alloy mudguards unless the price reflects this. The 3TA/Twenty One won't win many races but is probably at least as quick off the mark as an RE 350, standard in both cases. I like them; the Tiger 90, baby Bonneville was the best of the 350ccs, although a friend of mine has the earkier (1940s) 3T, a real oddball that is quite rorty but fizzles out at 50mph or so...