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Checking valve clearance by gut feeling only. (Read 284 times)

Dave

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Re: Checking valve clearance by gut feeling only.
Reply #15 - 11/13/17 at 03:27:05

norm92de wrote on 11/12/17 at 21:16:00:

I think, as someone mentioned, it would be more accurate using two feeler gauges since the rocker shaft must have some clearance and therefore some variation is probable from side to side.

I use 2 feeler gauges - but not in the way you describe.

I use a 0.004" gauges and adjust so that it will slide through.....but then use a 0.005" as a "no go" gauge. If the 0.005" goes through - I tighten it up a tiny bit more until on the 0.004" gauge slides through.

Someday I will be old......But not today!

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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5112 Manteca , CA Gender:	Re: Checking valve clearance by gut feeling only. Reply #16 - 11/13/17 at 09:34:35 My gut says use a feeler gauge ! Been working on engines since I was ten and I never play the guessing game ! Not sure what you call it , lazy or dumb !
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28889 L.A. California Gender:	Re: Checking valve clearance by gut feeling only. Reply #17 - 11/13/17 at 10:14:08 If you were checking something daily, then you might get the muscle memory to know exactly how to much to turn it to get the right setting. But we do it once every 3 months. Not enough to do it w/out aids. At least you'll need a degree wheel on your screwdriver.
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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: Checking valve clearance by gut feeling only. Reply #18 - 11/13/17 at 16:13:52 Dave, That is exactly what I do. If there is any variance due to the "play" in the rocker shaft- oh well.
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eau de sauvage Serious Thumper Offline Posts: 2565 Queensland Gender:	Re: Checking valve clearance by gut feeling only. Reply #19 - 11/14/17 at 02:26:34 OK thx. Just to clarify, by 'play in the rocker shaft' that is referring to the rod that the rocker pivots on, yes? And that has some play that becomes part of the clearance?
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Armen

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Re: Checking valve clearance by gut feeling only.
Reply #20 - 11/14/17 at 04:10:39

Hey Eau,
Here's the deal:
The fit of the rocker arm on the shaft has to have some clearance to allow oil to pass through the shaft, and allow the rocker to 'rock.' If you lever up one end of the rocker with a feeler gauge, the clearance on the other end diminishes. To cancel out the movement, you use one feeler under each finger of the rocker arm. This keeps the rocker parallel to the rocker shaft. The more the rocker-to-shaft, the more the clearance readings will be compromised.
When Honda introduced the V-4 Interceptor in the early 80's, they toasted a lot of valve train components. At Honda school, they taught us this way to adjust valves on a forked rocker. Turned out there were much bigger problems with the valve train, and Honda did a major redo of the top end oiling a few years later.

In theory, theory and reality are the same. In reality, they aren't...

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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: Checking valve clearance by gut feeling only. Reply #21 - 11/14/17 at 20:54:29 "by gut feeling".On the lighter side,my old gut is way to fat and nerve endings to poor to be used as a feeler gauge!
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eau de sauvage Serious Thumper Offline Posts: 2565 Queensland Gender:	Re: Checking valve clearance by gut feeling only. Reply #22 - 11/16/17 at 01:20:49 @Armen, OK thx will go the two feeler gauge route.
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Armen Serious Thumper Offline Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Checking valve clearance by gut feeling only. Reply #23 - 11/16/17 at 19:33:29 Gung-ho!
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jcstokes Serious Thumper Offline SuzukiSavage.com is very useful Posts: 2119 Mauku New Zealand Gender:	Re: Checking valve clearance by gut feeling only. Reply #24 - 11/17/17 at 00:21:16 Someone on this forum (tech section) had gauges that were bent at right angles and mounted on a stick. he claimed these were more effective and easier to use than the Z bend gauges. These gauges were very short.
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eau de sauvage

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Re: Checking valve clearance by gut feeling only.
Reply #25 - 11/17/17 at 22:38:34

jcstokes wrote on 11/17/17 at 00:21:16:

...snip

Yeah, I have them they'd be the motion pro guages they are easier to use than the normal ones that are hand bend. I might even order another set of the motion pros. Just checked the valves on my GS, what a dream just slide them in, takes about 90 to do all four!

I'm in luck, found one on ebay with free postage to Australia, so only $10 AUD delivered! I'm sure the other one I have cost a lot more delivered.

https://www.ebay.com.au/itm/282350256043

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