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valvetrain question on the samurai

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Bobthebiker

valvetrain question on the samurai
« on: March 08, 2010, 03:00:48 PM »
In my 87  I'm hearing a clicking from my valves, pretty much just at idle,  but I'm wanting to make sure this isnt indicative of a mechanical problem.     

Its not like absurdly loud,  just something I'm noticing and I want to be positive it isnt a problem.   

On some motorcycles,  particularly the Kawasaki EX500, and GPz900R models, a clicky valvetrain means they're adjusted right.    is the samurai motor the same?
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Offline wildgoody

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Re: valvetrain question on the samurai
« Reply #1 on: March 08, 2010, 03:16:47 PM »
Yes, if the ticking stops, you will burn valves.
You might want to give them a check to make
sure that there aren't any too tight

Wild
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Bobthebiker

Re: valvetrain question on the samurai
« Reply #2 on: March 08, 2010, 03:26:22 PM »
ok,  now, on checking valves.  do I check them with the motor dead cold as you do with motorcycles?   

I appreciate the answer btw.  its reassuring to hear that the clicking is normal.
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Offline zukimoo

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Re: valvetrain question on the samurai
« Reply #3 on: March 08, 2010, 03:49:20 PM »
when my valves are noisy it means the oil is low....but seriously....samurai valves are adjustable?  just kidding...they should be checked once in a while but most people just ignore them, like t-case/tranny oil and the grinding noise coming from the back. You really can't hear it too bad when you're going 80.
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Offline wildgoody

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Re: valvetrain question on the samurai
« Reply #4 on: March 08, 2010, 03:59:14 PM »
I'm not sure if they need to be cold, as long as they have some tick
you should be good, I worry that a cold measurement will get too
tight when hot.

Suzuki valves seem to tighten as they age, so keep an eye on them,
like check every 15-20K miles, otherwise you can burn them, I burned
mine from not adjusting

Wild
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Bobthebiker

Re: valvetrain question on the samurai
« Reply #5 on: March 08, 2010, 04:08:15 PM »
yeah,  I've learned with motorcycles that valves do indeed need adjustment every so often.      The nature of the samurai motor though explains the longer intervals.   lower rpms are FAR less abusive on the valve seats and such than the GSXR600, or kawasaki ninja 500, where your NORMAL rpms are around 6-10k, if not 15k on the GSXR motor.

All valves tighten with time though,  as the motor runs and the valves and seats wear,  they tighten up, necessitating the adjustments from time to time.
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Online fordem

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Re: valvetrain question on the samurai
« Reply #6 on: March 09, 2010, 12:53:52 PM »
Quote from: Bobthebiker on March 08, 2010, 04:08:15 PM
All valves tighten with time though,  as the motor runs and the valves and seats wear,  they tighten up, necessitating the adjustments from time to time.

Generalisations - pah!  Just so you know - not ALL valves "tighten with time".

The BMC A & B series motors I grew up with, the valves NEVER tightened with time - they got looser and louder - sure they needed adjustment from time to time (more like ALL the time) but, they NEVER tightened.
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Offline rascott

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Re: valvetrain question on the samurai
« Reply #7 on: March 09, 2010, 04:13:03 PM »
adjustment can be made hot or cold- different gap for each condition.
i prefer to do it cold, as i figure it's cooling down as i open it up.
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Offline wildgoody

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Re: valvetrain question on the samurai
« Reply #8 on: March 09, 2010, 07:05:46 PM »
Don't beat up on Bob too bad, I was going to point out that VW
type I engines loosen up as they run, but that's not what we are talking
about, Suzuki valves tend to tighten, and if the scare of burning your
valves and having to rebuild the head is a motivator to keep them checked
and adjusted, so be it

Wild
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Bobthebiker

Re: valvetrain question on the samurai
« Reply #9 on: March 09, 2010, 07:41:17 PM »
Well in all fairness, my mind cannot logically see valves loosening as they run.    then again I've not looked at all valve designs either.    I need to break out my service manual and see what the clearance spec is.
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Offline wildgoody

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Re: valvetrain question on the samurai
« Reply #10 on: March 09, 2010, 09:53:51 PM »
.006 intake .008 exhaust if I remember right
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Bobthebiker

Re: valvetrain question on the samurai
« Reply #11 on: March 09, 2010, 10:08:30 PM »
Thats what I saw in my service manual too.  now I need to figure out WHERE THE DEVIL my feeler gauges went.......  those things are like bad friends. never around when you need em most.
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