I need help with ID of these cam chain lnk

Both seem to be 06-B specification, the straight side plates are pretty unique to this spec.

The M3 or 3M is a roller chain, identifiable by the thin pins. The thicker-pin Regina is a bush chain, infamous for cracking these and distributing the shrapnel within Laverda primary chaincases...

Never seen this logo on Iwis chains Maurice. Minnesota Mining and Manufacturing came to mind!

piet
 
sfcpiet said:
The thicker-pin Regina is a bush chain, infamous for cracking these and distributing the shrapnel within Laverda primary chaincases...
Click to expand...
So the best I should do is replace the cam chain ASAP. It was in the bike when I bought it a few years back. I've put 6,000 miles on the bike; it has 12k miles total. I suspect it is the original cam chain.
sfcpiet said:
The M3 or 3M is a roller chain, identifiable by the thin pins
Click to expand...
A Laverda parts seller on eBay is offering this chain, brand new, and says he sourced it from Wolfgang 15 years ago. I have purchased from him before and had no issues. I was simply wondering if anyone knew what Brand it is; the seller does not know.
 
78jotadave said:
So the best I should do is replace the cam chain ASAP. It was in the bike when I bought it a few years back. I've put 6,000 miles on the bike; it has 12k miles total. I suspect it is the original cam chain.

A Laverda parts seller on eBay is offering this chain, brand new, and says he sourced it from Wolfgang 15 years ago. I have purchased from him before and had no issues. I was simply wondering if anyone knew what Brand it is; the seller does not know.
Click to expand...
The Regina cam chains seemed to work quite OK. The triplex primary to the same 06-B spec very often shed its' bushes, I've found hundreds of broken bits in various primary cases over the years. Poor maintenance was perhaps often a contributing factor...

piet
 
78jotadave said:
So the best I should do is replace the cam chain ASAP. It was in the bike when I bought it a few years back. I've put 6,000 miles on the bike; it has 12k miles total. I suspect it is the original cam chain.

A Laverda parts seller on eBay is offering this chain, brand new, and says he sourced it from Wolfgang 15 years ago. I have purchased from him before and had no issues. I was simply wondering if anyone knew what Brand it is; the seller does not know.
Click to expand...
Obviously replace the Regina chain.

If it were me I would NOT be fitting the unknown "new" chain of dubious origin. Buy a new chain of known suitability. IWIS appear to be a popular choice, exact details of will most likely be posted by those more knowledgeable than I.
 
I'd be sourcing an iwis chain for the job. I brought a long length of Regina chain and a bunch of links in Sydney many years ago. Also replaced the triplex primary with it on both the Motodd and SFC750.When pulling the motor for the rebuild several years later I found the cam chain had broken a couple of rollers which I found in the crank case after splitting it.
Red supplied me iwis chains for cam and primary duplex. Seeing the quality I wouldn't use anything else these days.
Also replaced to 2 single row Reginas I fitted to the SFC when doing the recommision with the iwis duplex.
Probably still have a good length of that Regina chain I'll never use after seeing those split rollers.
 
I did some Googling using image search - it said "When you see a distinct "M" stacked directly over a sharp, rounded "3"—you are looking at an authentic, original Tsubaki component." Only the bottom of the 3 is rounded, though, and I couldn't find a similar image, so hmm.
 
That chain might be fine, but if it was me I'd buy a new one from Wolfgang just to be safe. I don't recall what my chain was stamped with when I did the top end.
 
You must log in or register to reply here.
Back
Top