valve adjustment question

Ordyguns · 04-24-2006, 08:36 PM

Hi all,

new to the forum as was wondering if any of you could help. I have a 84 mustang with a 393 stroker I just purchased. It has a set of trick flow heads, solid lifter, roller (1.6 blue rockers). I know there are many ways of adjusting the valves, but is this right; start at #1 cylinder TDC combustion stroke both valves closed? Then work my way around the firing order? I have the valve lash specs from the cam info. The problem I am having is the #8 cylinder rockers are not drawing down far enough. I have also checked the rocker studs and they are in tight. Any help would be grateful.

Gearhead999 · 04-25-2006, 11:56 AM

When you say they "are not drawing down far enough". Do you mean they are bottoming out on the stud??

It does have screw in studs??

The push rod isn't too short, is it??

Did you try and switch the rockers, pushrods, etc with another cylinder??

Is the stud smooth with no burrs, etc??

Are the lifters new?? Are you compressing them too much??

Hope this helps some.....

car9fan · 04-25-2006, 03:13 PM

Yes-no-yes-yes-yes

Ordyguns · 04-25-2006, 07:37 PM

Thanks for the reply gearhead. I should have been more descriptive. Yes they are scew in studs, no I have not tried the rockers on other cylinders yet. The pushrods are not to short and are not bent. No burrs or obstructions. It may be the lifters. This is going to sound stupid, but these are solid lifters, do they still compress?

I

04-25-2006, 11:56 AM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: valve adjustment question When you say they "are not drawing down far enough". Do you mean they are bottoming out on the stud?? It does have screw in studs?? The push rod isn't too short, is it?? Did you try and switch the rockers, pushrods, etc with another cylinder?? Is the stud smooth with no burrs, etc?? Are the lifters new?? Are you compressing them too much?? Hope this helps some..... __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

04-25-2006, 03:13 PM	#3
car9fan CAR9FAN Join Date: Mar 2004 Location: m.d Posts: 103	Re: valve adjustment question Yes-no-yes-yes-yes __________________ MY HOME PAGE

04-25-2006, 07:37 PM	#4
Ordyguns Registered Member Join Date: Apr 2006 Posts: 2	Re: valve adjustment question Thanks for the reply gearhead. I should have been more descriptive. Yes they are scew in studs, no I have not tried the rockers on other cylinders yet. The pushrods are not to short and are not bent. No burrs or obstructions. It may be the lifters. This is going to sound stupid, but these are solid lifters, do they still compress? I

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Air by pass valve question.	Jaegermeister2k	Power Adders	21	05-06-2005 09:40 PM
Autolite 1100 question... power valve.	Phillyfanfrombirth	Classic Mustangs	7	02-20-2005 06:11 PM
Valve cover question	Stang951	Windsor Power	1	03-27-2004 11:57 PM
master cylinder and prop valve question	shelby2	Classic Mustangs	1	07-05-2002 05:32 PM
EGR valve question?	84LX89GT	Windsor Power	3	09-07-2001 02:09 AM

04-24-2006, 08:36 PM	#1
Ordyguns Registered Member Join Date: Apr 2006 Posts: 2	valve adjustment question Hi all, new to the forum as was wondering if any of you could help. I have a 84 mustang with a 393 stroker I just purchased. It has a set of trick flow heads, solid lifter, roller (1.6 blue rockers). I know there are many ways of adjusting the valves, but is this right; start at #1 cylinder TDC combustion stroke both valves closed? Then work my way around the firing order? I have the valve lash specs from the cam info. The problem I am having is the #8 cylinder rockers are not drawing down far enough. I have also checked the rocker studs and they are in tight. Any help would be grateful.