[DeTomaso] Valve Lash Adjusting Tool

[Asa Jay Laughton]

Why does Mike's procedure NOT sound right to me?

The allen bolt on the inside sits against the top of the rocker arm
stud.  The adjusting nut (hense called an "adjusting nut" sits against
the rocker arm pivot.  If I adjust lash with the allen bolt and then
hold it in place, I can crank on the adjusting nut and it will just keep
going until the valve is open.  Why does your procedure not work for me
Mike?

Asa  Jay

Asa Jay Laughton, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
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On 9/28/2014 9:55 AM, Mike Drew via DeTomaso wrote:
> Charlie,
>
> I have one of these tools for my 427 Cobra and it works great. 
>
> You seem to misunderstand the procedure for setting valve lash. Lash is adjusted using the Allen bolt on the inside. The position of that bolt is retained by tightening the nut on the outside. 
>
> In practice, with this tool you set your valve lash, then hold the inner handle stationary to preserve the lash while using the outer handle to tighten the nut which locks it in position. If you allow the inner portion to rotate as you tighten the nut, you change the lash....
>
> Mike
>
> Sent from my iPhone
>
> On Sep 28, 2014, at 5:09, Charles McCall <charlesmccall at gmail.com> wrote:
>
>>   Has anyone used a tool like this to set their valve lash with solid
>>   lifters?
>>   [1]http://www.ebay.com/itm/COMP-CAMS-3-16-Valve-Lash-adjuster-wrench-to
>>   ol-5304-full-bore-/361063973727?pt=Motors_Car_Truck_Parts_Accessories&h
>>   ash=item541117035f&vxp=mtr
>>   A
>>   Can you tighten down the rockers sufficiently using the allen wrench
>>   without tightening the nut that sets lash? Currently, in order to
>>   tigthen the center allen bolt I need to tighten the surrounding nut as
>>   well. Despite having lived with this engine for 14 years now, I've
>>   never gotten the trick of doing this on the first shot and inevitably
>>   have to loosen and tighten several times before I can get the lash to
>>   be where I want it.
>>   A
>>   This tool would allow me to set EXACTLY the desired lash, if just
>>   tightening the allen bolt is sufficient to hold everythingin place...
>>   A
>>   Thanks!
>>
>> References
>>
>>   1. http://www.ebay.com/itm/COMP-CAMS-3-16-Valve-Lash-adjuster-wrench-tool-5304-full-bore-/361063973727?pt=Motors_Car_Truck_Parts_Accessories&hash=item541117035f&vxp=mtr
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