adjusting valves

[u3b3rg33k]

It works well when you can't find your feeler gauges and you just ate herring.

[Philipangoo]

^ The tool is so cheap... and with your valves, I would think you want the gaps to be consistent and accurate. With a feeler gauge you can adjust to the right gauge then see if the next size up won't fit go - nogo style.

[u3b3rg33k]

Do it with a herring can lid, use other side after 6th adjustment (compresses too much on 12):

[leone30]

I used .008in .010in .012in. gages. Better yet to use metric gages if you can get them,24mm .25mm, 026mm.
The first goes easy between the walve and the roker. the second with some drag, the third does not go. Probably, the best way to set valve clearance is to use a dial indicator. A metal bar with holes against valves installed over the head. a dial indicator head inserted in to each hole sequentially and touch a rocker. Then you set clearance. many years ago i did this way. It was alwaus right. I always did on cold engine.

[KenC]

chain guide rails? 8)

Son of a...

[nando]

chain guide rails? 8)

[KenC]

Valve adjustment? 8)

[dreamer420]

just a simple feeler gauge. clicky

[NC325iC]

what is this go-nogo feeler gauge you speak of?

[dreamer420]

I've only done this once in my life. followed the bently manual to do it. used a go-no-go feeler gauge, with the engine cold (70's in cali weather, it was off all night). I've had absolutely no problems with these adjustments, and it was super easy to do. hand turned the engine (auto trans, was very easy).

[Teaguer]

You can still do this on many older OHV V8s from the 60s, before emissions controls forced them to run the crankcase in vacuum. Most old domestic guys adjust their valve lash with the valve cover off and engine running b/c it's the most accurate.

Yeah this is common procedure for old domestic V8 guys.
First time I used those aluminum oil deflectors I realized quickly that you are not supposed to rev the engine while they are on.
Those things quickly become like exploding shrapnel flying all over the place!
Forget getting my shirt caught by a rocker i was too busy ducking and dodging those damned things! :D

[b*saint]

I redid them today with the "go and no go" technique instead of the up for interpretation "drag on the gauge" technique. Much quieter than the first round. Also figured I had a nice shiny new dial torque wrench, I'd torque down the lock nuts too.

And to comment on the hot or cold engine adjustment, the dealer service manual says when the engine is under 100F.

[Beach Bum]

You can't actually do the adjustment but you can check the lash with your feeler gauge. Mine never 'sprayed' oil, some of it splashed a bit as the cams spin around but it wasn't bad.

Oooh-K. That makes a hell of a lot more sense. :D

[CorvallisBMW]

You can't actually do the adjustment but you can check the lash with your feeler gauge. Mine never 'sprayed' oil, some of it splashed a bit as the cams spin around but it wasn't bad.

[crazyman]

Yeah I don't quite see how it's possible to check and adjust valve lash while it's running. There would be oil squirting every where plus it would be basically impossible to get an accurate valve lash adjustment.