Any machinists set valves on an DOHC motor?

Rich Biebel · 04-09-2011, 05:02 PM

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.....

art leong · 04-09-2011, 05:22 PM

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.

Mark Yacavone · 04-09-2011, 09:12 PM

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.

04-09-2011, 05:02 PM	#1
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,315 Likes: 25 Liked 544 Times in 213 Posts	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..... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 04-09-2011 at 05:06 PM.

04-09-2011, 05:22 PM	#2
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	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. __________________ Art Leong 2095 SS

04-09-2011, 09:12 PM	#3
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,821 Likes: 2,912 Liked 5,133 Times in 1,957 Posts	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. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers Last edited by Mark Yacavone; 04-10-2011 at 04:02 AM.