GS850 Tensioner.....

[Poot]

Hi all,

I rebuilt my tensioner a year or two ago, and went today to replace a leaky gasket there. I notice that the metal shaft that pushes up against the chain guard doesnt move in when I push it.

It only moves in when I help it along by turning the large knurled knob counter-clockwise.

It seems logical to me that it should move in and out freely...without my help

?


POOT

[Jackrp]

It's working exactly as it's supposed to, the knurled knob releases tension on a ball bearing that is supposed to keep that rod from going in unless knob is turned Counter clockwise. If it went freely in and out, there is a terrible noise followed by a short cam chain life span. Make sure you use your manual when reinstalling tensioner to ensure correct tension.

[bwringer]

The tensioner is sort of a mechanical one-way valve -- the plunger can go out to keep light tension on the tensioner blade, but it can't go back in.

In operation, it's only supposed to move to compensate for wear in the tensioner blade and/or cam chain.

[Poot]

ok. thanks a bunch.

I was worried , but it didn't add up as I used your page last time when I rebuilt it. very useful.

I'm thinking we should put together something like your page for more models up on this site, so when were all gone (if ever) some others will be able to keep the GS's alive.

thanks again guys.


POOT