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Message started by Digger on 11/24/05 at 20:48:23

Title: Valve Clearance Question
Post by Digger on 11/24/05 at 20:48:23

I just did the second valve clearance inspection on my '01. It had 5200 miles on it.

All clearances were at 0.005" which is unchanged from the clearances I measured at the 600 mile point.

QUESTION: Can I expect the clearances to increase with mileage, or will they decrease?

Thanks in advance.

Title: Re: Valve Clearance Question
Post by SavagePielk on 11/25/05 at 06:25:56

they will increase of course, as there will be a little wear, but it won't be a lot. Normally you have to redo the valveclearance every 10.000 miles

Title: Re: Valve Clearance Question
Post by bentwheel on 11/25/05 at 10:12:30

SavagePielk wrote:

they will increase of course,

Not necessarily. If your valve seats should wear, that will causes the valve to recede, reducing the clearance at the tappet making the clearance too tight.
BTW Suzuki recommends clearance checks every 4,000 miles.

Title: Re: Valve Clearance Question
Post by Michiel on 11/25/05 at 11:01:08

You're right, I'm sorry. I meant to say 10.000 kilometers, which is something like 4000 miles :)

Title: Re: Valve Clearance Question
Post by bentwheel on 11/25/05 at 11:52:29

I don't want to be anal here, but 10,000kms is 6,000 miles.

Title: Re: Valve Clearance Question
Post by Savage_Rob on 11/25/05 at 19:33:16

My rule of thumb has always been that 1 kilometer is 5/8 mile. Using that, I came up with 6250 miles but when I consulted http://www.onlineconversion.com/ I found it converted to 6213.7119224 miles. Oh well, fairly close anyway.

Title: Re: Valve Clearance Question
Post by bentwheel on 11/25/05 at 20:53:36

OK Rob, now you're the anal one. :)

Title: Re: Valve Clearance Question
Post by SavagePielk on 11/26/05 at 01:14:26

whatever :P :P :P we keep 10.000km's as a standard here ;)

Title: Re: Valve Clearance Question
Post by klx650sm2002 on 11/26/05 at 02:48:22

I got 6213.8818 miles.

Clive W :D

Title: Re: Valve Clearance Question
Post by slavy on 11/26/05 at 07:57:41

Like a rule:
If You have a screw and lock nut valve adjustment / like the Savage/ , the valves tend to go loose
If You have shims, the valves tend to go tight.
But there can be exeptions
In my expirience, here in the desert ,the air filter is very important for the valves and for the cam chain. This is more pronounced in the Off-road world, but it is valid in the road bikes too.
If You have a K&N filter, don't forget to oil it !

Title: Re: Valve Clearance Question
Post by Savage_Rob on 11/26/05 at 07:58:02

bentwheel wrote:

OK Rob, now you're the anal one. :)

Okay. It's not the first time I've been accused of that. I saw yours and knew mine was slightly different and couldn't remember where I'd gotten my rule of thumb. That made me wonder just how accurate it might or might not be... so I looked it up. I just happened to wonder if I'd been using a BS rule of thumb for 30+ years and if I should change it.