Any idea how this valve adjustment tool works?
 

I received an email from pelican announcing this new fangled device in the boutique section of the catalogue

It has a good write up about the benefits of using it, but no idea on how one would use it. (I haven't ordered one because of that).

Any clues?
When I tried to search for a manufacturer's website I found a lawnmower company.
Maybe its just a fancy bottle opener?

http://www.pelicanparts.com/catalog/...valvetool1.jpg

It look's as though you turn the rocker adjustment screw in to flush then set the gauge at a zero point then back it out a specified amount of degrees the end result being the required gap.

The is a thread on it somewhere in here. I remember reading it. Looks like a well made tool.

Yep kodionelli has it 100% right.

It uses the thread pitch of the rocker arm adjuster screw to set the valve clearance. The pointer on the tool is used to make the necessary turn on the screw to precisely set your valve clearance based on screw thread pitch. A full turn of the screw = 1.0mm So your valve clearance, which is 0.1mm, is 10% of 360 degree rotation or 36 degrees. That's why the tool has 36 degree sectors on it

http://forums.pelicanparts.com/911-engine-rebuilding-forum/794442-911-valve-lash-adjustment-tool.html

Well that thread explains everything, thanks!
The tool certainly does look to be a quality piece of engineering.

All it needs is a a bottle opener attachment and it would be perfect!;)

Here is where i ound it on Pelican
Pelican Parts - Product Information: PEL-VALVELASH

valve adj. tool
 

I just got one...The package includes a detail instructions of how to use it.

That's the 36° turn valve adjustment gizmo........
 

For each 36° rotation as indicated on the dial of this device, it correlates to 0.1 mm vertical displacement of the valves' adjuster/bolt. This is the fancier version of the 36° screw driver that came out many years ago and a well designed tool. Next on my wishlist.

Tony

What's wrong with a feeler gauge, a screwdriver, and a 13mm box wrench? In many 911s the room is so scarce, you can barely get in there with those simple tools, much less this contraption. Just 'cause somebody makes something, it doesn't mean it's a good idea .....................

The Cap'n

x100.

Probably OK if you have the engine out but your point is well taken if in situ.

Here's a newsflash for those that think this, or any non-feeler-gauge tool, is a bad idea for 911 valve lash adjustments - you are NOT obligated to buy or use any of them! http://www.sherv.net/cm/emo/funny/1/mooning.gif

Here's a newsflash for those that think they need any non-feeler-gauge tool for 911 valve lash adjustments - you are NOT at all skilled.

But it is easy to become skilled. Might take you 10 minutes - maybe 15.

Wayner,

I'm the guilty party! I originally introduced this next door on the 911 Engine Forum:

http://forums.pelicanparts.com/911-engine-rebuilding-forum/794442-911-valve-lash-adjustment-tool.html

Please see that post as it explains how the tool functions, although the quys here have it all figured out.

That lawn and garden tractor site (lawnmower company) you found is mine also - I've specialized in ignition system upgrades for these older machines. Thought I'd try a few specialty tools for the air-cooled 911's too.

I've not yet tried to open a bottle with this tool but if it works, I'll add that to the product features.

Thanks very much for your interest.

it is easy to become an expert at adjusting valves, and it doesn't take any specialty tools, voodoo chants, magic elixirs etc.

There are stupider ways to spend your money, and if this tool provides the little bit of added reassurance that they are getting their adjustments right then good for them.

I know that I probably could have an upper and lower valve adjusted before am able to get that tool into place but it may work well for others.

And you can use a Saturn 5 rocket engine to light a cigarette, but why????

So given that you utilize methods indicative of great skill is it safe to assume that you grow, hunt for, and prepare from scratch, your food, weave your own clothing, create fire by rubbing sticks together and brew your own soap?

I've been measuring and adjusting valve lash on Ducati and Porsche engines for over 15 years and have always used some form of a feeler gauge method. Yes, it works perfectly, but I fail to see how that fact somehow makes it "bad" when someone creates an alternate method to get the job done. Perhaps this attitude is reflective of some sort of deep seated jealousy on the part of the naysayer, or maybe arrogance on the part of those individuals causes them to think that because they successfully use method "x" it is only right for others to do so as well.

Here is my version of the same idea. Not my idea, but stolen from another Rennsport forum.


Same idea. Tighten down the screw and the move the screwdriver 36 degrees left. You move the right indicator to where the left on was.

So much easier than getting the blade in there....and same result.

This tool just does the same, but fits on the arm to steady things.


http://forums.pelicanparts.com/uploa...1394850860.jpg

Is the Stromski valve lash tool similar to this? I use a feeler gauge, being the caveman I am...

Sorry,
Tools are to make jobs easier and simpler. I am not quite understanding why the resistance to a simple tool that allows an alternate adjustment process. I have done front side and back side valve adjustments and found both to be the same as far as effort. My '75 had a worn foot that required the backside method, and it stayed the same clearance for my tenure. This is a simple mechanical tool that provides an alternate method for valve adjustment, why is that so scary?
eric

I haven't tried this method yet but I would think it is the most accurate. It's the same concept as a micrometer (a precision instrument). One revolution on a micrometer dial is exactly .025" based on the pitch of the screw used on the internals. This eliminates any "feel" out of the equation. I'll try it next time.