cam chain

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Joined
Nov 20, 2001
Messages
17,028
Location
Ely, England
checked a "worn" regina chain today. a CHR and it was still 1mm shorter than a brand new DID!!!! now didn't we hear this somewhere before?

regards

Taffy
 
Taffy said:
checked a "worn" regina chain today. a CHR and it was still 1mm shorter than a brand new DID!!!! now didn't we hear this somewhere before?

regards

Taffy

I think I mentioned this last year when I rebuilt my engine I had a Regina cam chain sent, when installed even without the tensioner fitted tight as a bow string.
Replaced it with a DID perfect just a small amount of free play before installing the tensioner.

Regards

Sparks.
 
RE: Re: cam chain

thanks steve

as i thought the CHR is probably the better chain.

why?

well a chain is under stress at the tail end of the turning gera and at the fromnt end of the pulled gear. the better the fit the more links take the stress. if more take the stress the less wear there is going to be in a like-for-like example.

i have mentioned steve that i have seen many modern black blades where the top 2" have been shaved right down. i haven't done it yet but making 2 + 2 = 4 i guess the chain was going around the "IMOVABLE OBJECT" called the tensioner blade pivot bolt.

with the blade ground away in this area i think your chain would have fitted. i know this because in my sherco camgear assembly test there was a lot more loose chain when i pulled the blade out completely (and it had been under zero pressure).

so, i think i will now try and find regina CHR camchain whenever i can. and if i found your problem steve i would have filed some of the top 2" of blade off making the contact point nearer to halfway down. something i've brought up a few times.

regards

Taffy
 
Re: RE: Re: cam chain

Taffy said:
thanks steve

as i thought the CHR is probably the better chain.

why?

well a chain is under stress at the tail end of the turning gera and at the fromnt end of the pulled gear. the better the fit the more links take the stress. if more take the stress the less wear there is going to be in a like-for-like example.

i have mentioned steve that i have seen many modern black blades where the top 2" have been shaved right down. i haven't done it yet but making 2 + 2 = 4 i guess the chain was going around the "IMOVABLE OBJECT" called the tensioner blade pivot bolt.

with the blade ground away in this area i think your chain would have fitted. i know this because in my sherco camgear assembly test there was a lot more loose chain when i pulled the blade out completely (and it had been under zero pressure).

so, i think i will now try and find regina CHR camchain whenever i can. and if i found your problem steve i would have filed some of the top 2" of blade off making the contact point nearer to halfway down. something i've brought up a few times.

regards

Taffy

No I mean the Regina chain I fitted was as tight as a bow string without the tensioner blade fitted or the guide just the pure chain going around two sprockets.

Regards

Sparks.
 
RE: Re: RE: Re: cam chain

gotchya! with you now....

regards

Taffy
 

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