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Message started by Emily on 03/22/10 at 18:50:11

Title: cam chain tensioner spring
Post by Emily on 03/22/10 at 18:50:11

hey guys
so i am working on my friends 96 suzuki savage - and the spring in his cam chain tensioner has been mangled and broken into two pieces

but! suzuki doesn't sell the spring separately - just the adjuster assembly... any ideas on what spring we could get to replace it?

thanks,
emily

Title: Re: cam chain tensioner spring
Post by BurnPgh on 03/22/10 at 18:52:19

Check with verslagen.

Title: Re: cam chain tensioner spring
Post by verslagen1 on 03/22/10 at 20:03:27

You've been pm'd

Title: Re: cam chain tensioner spring
Post by DarkOmen1110 on 03/24/10 at 11:30:37

Hey, this is the owner of the bike she's talking about. I'll be PMing about that spring in a moment. Thanks, btw, for that guide on the tensioner--very helpful. Any ideas on what's causing the spring to pop out in the first place?

Title: Re: cam chain tensioner spring
Post by verslagen1 on 03/24/10 at 12:15:16


4A6F7C6541636B603F3F3F3E0E0 wrote:
Any ideas on what's causing the spring to pop out in the first place?

That spring pops out cause the tension adjuster has gone to its maximum extension.  You can't just put in a new spring and away you go.  Guide wear and chain stretch combine to over extend the plunger.

How many miles are on the bike?
What year?

Things you'll want to look at are...
wear on the rear guide,
stiff links in the chain,
any damage.

the rear guide can be replaced w/o taking the head cover off
but to replace the chain, you will need to remove the head cover.
both can be accomplished with the engine in the frame... most of the time.

Title: Re: cam chain tensioner spring
Post by DarkOmen1110 on 03/24/10 at 20:13:36

It's a '96 with 12k on it now.

It sounds like I should remove the chain and measure it...
How do I check for wear on the rear guide?

Thanks!

Title: Re: cam chain tensioner spring
Post by verslagen1 on 03/24/10 at 20:29:43

When you check the chain, you're looking for stretch over 21 pins.  Check several places around the chain.  Also take and move every joint.  If you feel one sticking, repeat ONE, I'd replace it.

Wear on the guide will be pretty obvious, there'll be a spot on the chain that's been eaten up.  whereas most of the guide will be smooth and shiney.  Quite common for the guide to have cracks in it.  You can replace it later w/o taking the head off, but ask yourself do you want to tear it down again.  and a worn guide will extend the plunger 3 or 4 mm's.

Title: Re: cam chain tensioner spring
Post by MMRanch on 03/25/10 at 00:32:35

That spring doesn't have to be as strong as the factory makes them.

Mine's in the 1/3 as strong neighborhood and it wooks just fine and maby the cam chain will last longer this time ?

Title: Re: cam chain tensioner spring
Post by verslagen1 on 03/25/10 at 11:50:56


130113010C1F101D165E0 wrote:
That spring doesn't have to be as strong as the factory makes them.

Mine's in the 1/3 as strong neighborhood and it wooks just fine and maby the cam chain will last longer this time ?

How did you do that?
cutting a 3rd off reduces the preload, but increases the spring rate.

Title: Re: cam chain tensioner spring
Post by justin_o_guy2 on 03/25/10 at 12:19:06


766572736C6167656E31000 wrote:
[quote author=130113010C1F101D165E0 link=1269309012/0#7 date=1269502355]That spring doesn't have to be as strong as the factory makes them.

Mine's in the 1/3 as strong neighborhood and it wooks just fine and maby the cam chain will last longer this time ?

How did you do that?
cutting a 3rd off reduces the preload,


but increases the spring rate.[/quote]



A bit of an education on spring lingo & spring basics would be handy.
Any links to what youre saying would be fine w/ me.

I agree that a softer spring would be okay. Im thinking the ratchet teeth are too close together, too.


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