valves

Jim Hanig · 04-13-2021, 12:43 PM

I had replaced the ex valves and installed roller rockers . Now the valves are not turning. Any suggestions. thanks

GTX JOHN · 04-13-2021, 12:44 PM

Valve Guide Clearance?

Jim Hanig · 04-13-2021, 06:07 PM

Quote:

Originally Posted by GTX JOHN

Valve Guide Clearance?

John i had ran these heads with the stock rockers , with the clearance .001 , put the roller rockers on while it was on the dyno , thats when it showed up.

garyc · 04-13-2021, 06:16 PM

Rocker not square with valve tip?

SSDiv6 · 04-14-2021, 11:49 AM

Valve geometry issue.

Jim Hanig · 04-15-2021, 11:27 AM

Quote:

Originally Posted by SSDiv6

Valve geometry issue.

and what would that be? i have the rocker in the correct location on the valve, and as i said these heads never had a problem until i put new valves and the comp rocker on them..

SSDiv6 · 04-15-2021, 12:23 PM

Quote:

Originally Posted by Jim Hanig

and what would that be? i have the rocker in the correct location on the valve, and as i said these heads never had a problem until i put new valves and the comp rocker on them..

Jim,

Have you put some felt pen ink or die on the valve tip and done a full sweep to check the contact on the valve tip? A couple of guys I know have experienced issues with the Comp rockers because they are not the ratio they purchased.

Also, make sure sure the roller tip rotates free. Too many times I have seen others wash brand new roller rockers, removing the lubricant from the roller making them seize. A seized roller tip can generate a side load on the valve stem due to limited contact on the tip.

04-13-2021, 12:43 PM	#1
Jim Hanig Senior Member Join Date: Aug 2006 Location: Pukwana SD Posts: 860 Likes: 554 Liked 99 Times in 49 Posts	valves I had replaced the ex valves and installed roller rockers . Now the valves are not turning. Any suggestions. thanks

04-13-2021, 12:44 PM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,728 Likes: 2,783 Liked 2,462 Times in 694 Posts	Re: valves Valve Guide Clearance? __________________ John Irving 741 Stock 741 Super Stock

04-13-2021, 06:16 PM	#4
garyc Member Join Date: Mar 2021 Posts: 124 Likes: 0 Liked 51 Times in 30 Posts	Re: valves Rocker not square with valve tip?

04-14-2021, 11:49 AM	#5
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,040 Likes: 712 Liked 1,568 Times in 579 Posts	Re: valves Valve geometry issue.