chain tension and mains?

Taffy · Feb 11, 2008

hear is another taff-ism left-of-field curved ball (i'm learning american!):

could the mains problem that few owners had be related or affected by the final drive chain tension?

i've met one or two people lately that have the chain very, very loose? is that a good thing? or bad?

unrelated?

regards

Taffy

ElSnorro · Feb 11, 2008

I'll add my question in this topic.

I have removed my camchain tensioner a while ago.
It looks like this:

Is this a good sign? or is my camchain too loose already?

JoeUSA · Feb 11, 2008

Re: RE: chain tension and mains?

ElSnorro said:
I'll add my question in this topic.

I have removed my camchain tensioner a while ago.
It looks like this:

Is this a good sign? or is my camchain too loose already?

You removed the tensioner before removing the tensioner spring and bolt on the back of the tensioner, so the spring forced the plunger all of the way extended.

You should have removed the spring and bolt from the back of the tensioner before removing the 2 bolts holding the tensioner onto the engine.

So start over............

1. Remove the spring and bolt from the back of the tensioner.

2. Toggle the tensioner ratchet and push the tensionerplunger back into the tensioner.

3. Remount the tensioner on the engine, loosely tightening the 2 mounting bolts.

4. Reinstall the spring and hollow bolt back onto the tensioner, screwing the bolt all of the way into the tensioner.

5. Remove the tensioner spring and bolt from the back of the tensioner.

6. Remove the 2 tensioner mounting bolts and carefully remove the tensioner.

7. Carefully count the number of slots showing in the tensioner plunger, and take a picture of it in that condition. (TRY to focus the camera better)

Tell us how many slots were showing, show us the picture, and we will be able to answer your question.

Regards,

Joe

nsman · Feb 11, 2008

RE: Re: RE: chain tension and mains?

To save our Friend Taff the frustration, what part of "final drive chain" did you not understand ?

.

Taffy · Feb 11, 2008

RE: Re: RE: chain tension and mains?

thanks nsman.....!

nice one joe - quality as usual!

no, i just thought about all the violence hacking back to one end of the crank?

here is another.

ready?

my carb is playing uop and i feel sure is depositing fuel straight into the top of the engine?

regards

Taffy

Coastie · Feb 12, 2008

RE: Re: RE: chain tension and mains?

Don't really see how it would make any difference to the mains.
Maybe the countershaft bearings if too tight.
What r u thinking?

Taffy · Feb 12, 2008

RE: Re: RE: chain tension and mains?

i merely throw stones......

do mains go on the open throttle or the closed throttle?

does the violent jerk in SM guise make a difference (cush or not)?

regards

Taffy

scrapveiw · Feb 22, 2008

RE: Re: RE: chain tension and mains?

timing chain? if you are talking about the the timing chain being a bit tight, i have known shell bearings (mains) to be ruined on car engines due to an overtight cambelt or chain and even seen a broken crank due to this,
but i have not seen it on ball or roller bearings.
i think excessive load due to the constant un even hammering of a single cylinder causes the damage,
or my other theory is the crank flexes causing the bearings to run out of line on the firing stroke,
multi cylinder engine mains dont seem to be any trouble due to the smoother harmonics associated with them.

regards

scrap

Simon · Feb 23, 2008

Taffy said:
could the mains problem that few owners had be related or affected by the final drive chain tension?

I doubt it, the final drive chain tension is always changing throughout the suspension travel. I have known a bike to blow its bearing and engine casing just behind the front sprocket due to excessive chain tension - not a pretty sight.....

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chain tension and mains?

Taffy

ElSnorro

JoeUSA

nsman

Taffy

Coastie

Taffy

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Simon

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