Any machinists set valves on an DOHC motor?
 

I have been looking at my solid lash adjusters. And there is no room to get a feeler gauge inbetween the valve and the rocker (the rocker has a channel that rides on the valve)
http://i203.photobucket.com/albums/a...2/000_0033.jpg
http://i203.photobucket.com/albums/a...2/000_0032.jpg
I can measure the distance between the cam and the roller on the rocker.
http://i203.photobucket.com/albums/a...2/000_0029.jpg
http://i203.photobucket.com/albums/a...2/000_0030.jpg
The only way I can adjust them is to do it one cylinder at a time (2 intakes or 2 exhausts)
Then pull the cam and adjusters lock the locknuts, then recheck them. Then move on to another pair of valves
Any ideas on an easier way to do it?

Re: Any machinists set valves on an DOHC motor?
 

Artie split the feeler to desired width.

Re: Any machinists set valves on an DOHC motor?
 

Art---see if ya got any motorcycle mechs around they have the same situation with the Jap bikes take a rocker over and see if one of their feelers will fit in your rocker--also ya using the PT cruiser NA rockers ??? they will take a lot more/higher rpm than a stock one---look at a set of DRAPER feeler gauges usually kinda long narrow tips lotsa bike mechs use this type

Re: Any machinists set valves on an DOHC motor?
 

Thanks I'll do that.
Using 2.7 rockers they are a bit better than the PTs

Re: Any machinists set valves on an DOHC motor?
 

Art---what you are looking for is TAPERED feeler gauges---they have a narrow point you stick in the rocker then get wider as they go back towards where ya hold em

Re: Any machinists set valves on an DOHC motor?
 

I just bought a set of Honda motorcycle gauges on Ebay I might have to trim them but they look like what I might be able to use.

Re: Any machinists set valves on an DOHC motor?
 

probably metric tho---ya need standard

Re: Any machinists set valves on an DOHC motor?
 

HONDA! Eeeeeeeeeeeeeewwwww! Jim

Re: Any machinists set valves on an DOHC motor?
 

See if you can find one of the old P & G Valve Gapper A toll that was around in the 60"s and adpt it I have 2 but wouldn't part with them for the world.

Re: Any machinists set valves on an DOHC motor?
 

Ralph beat me to it. I also have one, but it was a gift from my wife. Would not part with mine either. Can you somehow use a dial indicator? That was my first thought, then scrolled down (iPhone) and saw Ralph's post. A bright guy like yourself can come up with a way to use a dial indicator. Think you'll like it.

Re: Any machinists set valves on an DOHC motor?
 

Art,
To convert the MM feeler gauges to standard just multiply by .03937.

1mm x .03937= .03937
.5mm x .03937= .01968

Re: Any machinists set valves on an DOHC motor?
 

Art,
I'd cut the adjuster boss down to where you can get a wrench on the adjuster in there real easy or if this is a super stock motor I'd weld the adjuster to the rocker and make the pad that the rocker sits on stationary. (as long as there's room for cam/cams

Re: Any machinists set valves on an DOHC motor?
 

Art,
What is the actual Rocker Ratio? You know,measured... Measure the lobe lift and then the valve lift @ "0" lash. Then divide the required lash, at the valve tip, by the RR and set at the roller.
You do realize with a set up like that you can alter the RR with tip length of the valve. It can also move the cam timing around a little.

Re: Any machinists set valves on an DOHC motor?
 

Get a pair(1 Int and 1 ex) set at the valve to whatever lash you want and then see what it is between the cam and the roller. A feeler gauge should work ......Once you know the number that is at the cam/roller with the proper lash at the valve tip..... set them all at the cam/roller contact area. They do make very thin open end wrenches once know as tappet wrenches that might work on the adjusters...

I agree that motorcycle engine mechanics would have tools to do this....My son has been around motorcycles all his life......


I also think Terry's idea of cutting the bosses down is a very good one......Not real hard to do it either.....

Re: Any machinists set valves on an DOHC motor?
 

I'm thinking of cutting the bosses down some Fabricating a wrench that I can use on there. Possibly drilling holes for set screws to stop the lifter from turning.
But this will probably be for next season.

Re: Any machinists set valves on an DOHC motor?
 

Never mind . It looks like you don't have any room to close up the adjuster height any.
Yep. Machine the bosses down when you get the head off.

Re: Any machinists set valves on an DOHC motor?
 

Art
Rich is correct about the tappet wrenches, Sears sells them.They are about .250 thick.
Rich