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[ChrisD]

Oops, sorry – some missing words from my post.
I wanted to say “and maybe another nut must have vibrated off as it sounds like the loctited and spring-locked rotor nut has unwound itself and destroyed the rotor” which would explain the slowly then irrevocably failing charging. However on starting dismantling, I find a deeper problem so……engine out etc!

I am a bit disappointed as I sought advice from here on whether I needed to re-balance after fitting the new steel conrod in place of the OEM alloy one and was advised it was not necessary.

Apologies, onedayrestoration – I seem to have hijacked your thread but perhaps the detail and range of answers clarify your potential concerns too.
Cheers, ChrisD

[ric]

Doesn't appear much wrong with this advice... http://www.hitchcocksmotorcycles.com/ac ... crankshaft



We have produced a batch of high tensile forged British steel conrods for the Bullets. This has been designed from scratch using new tooling so that we could produce exactly what we wanted. This combined with the roller bigend "RE13" is a direct replacement for the alloy rods which can occasionally fail with devastating results.


Note 1: The crankshaft will require re-balancing with this rod.



Note 2: Please state if required for a 350 or 500cc.



Note 3: There are 3 options available: suitable for a roller bigend, suitable for a floating bush bigend and with an RE13 roller bigend already fitted.

[Adrian]

Chris D,



something else our hosts put on at the bottom of the front page of this forum might be of interest!



"Disclaimer: Any and all information you receive through this notice board, private messages, email etc. is always given on the condition that you 'use it at your own risk'. Hitchcocks Motorcycles Ltd will not be held responsible for any consequences of the use of such advice."



I know you're not suing HMC, but the 'use it a your own risk' proviso still holds good.



A.

[Onedayrestoration]

Thanks to all for these replies and advice. suffice to say, i'll leave as is, just doesn't seem to be worth all the effort and aggro.

The 350 engine fitted, is an original, but unknown mileage unit. Only the top end, from the barrel up, was replaced.
Again, as with my 500, that failed at 21,000km, the bottom end of this 1990 350 is living on borrowed time I'd say. Inevitable, there will be a big bang at some point!

Cheers

[Adrian]

Snapped rods seem to be more common on the 500 than the 350, so while I can't predict how much more life the big-end and mains have left, you'll **probably** hear clonk-clonk-clonk before anything goes bang-crunch. You could start getting the parts in now... A.