Pinto Car Club of America

I have just put a two liter together with a trick head that has the extended length cam follower studs for adjusting the clearance between the cam lobe and cam follower.
Trouble is the locknuts just don't want to stay tight, especially on number three cylinder. I wiped out another cam on a different engine with the same problem.
Any suggestions? I've never used Loc Tite or anything else like it. Should I?
Has anyone else experienced this problem?
Al
in Ct.

 Hello UltimatePinto,
The problem your having is you are running out of threads on the rocker pivot stud.
Sounds like you are using a small base circle cam.
To correct your problem you need to use longer valves or longer rocker pivot studs on your Hot 2.0.
The rocker stud Esslinger part #3224 about 45.00
or you could use valve lash caps Racer Walsh part #CRA99045_8 - 2.0 lash caps
Esslinger has them too but they require machining the valve.part #1210
I consider lash caps a crutch so your best bet is the longer studs.
OR like I originally said buy longer valves.
RWA1491 - valve 2.0 int. 1.75".050" lng $12.45
RWA1493 - valve 2.0 ex. 1.50".050" lng $12.45
These valves are .050 longer 
In my opinion the longer rocker studs id the answer to your problem.
hope that helps..... from
Pintony

Crower also sells the lash cap's. When I had my (2) 2.0 custom ground turbo cams made for me they supplied me with ( 2) sets ( not knowing that I was using longer valves). BTW If you do not have the correct geometry on your rocker arm you will not get the correct lift out of your cam ( could be a huge difference). I would make real sure the cam operates correctly with the valve...........

Thanx guys, I haven't looked to see about the caps, but I do have the long adjusters. The cam was purchased as a kit from Esslibger. It's a circle track roller set up that had to be reground so that I wouldn't eat up cam bearings running it on the street. Have had the straps welded on the cam towers as a precaution.
It came off the dyno at 161 hp @ 7000 rpm with what I think turned out to be 33 degrees total advance, (10 in the distributor), and boy did it come alive and sing from six to seven thousand. The Schoenfield headers seem big enough to swallow the engine!
After all was said and done though they pulled the valve cover off and # three exhaust wasn't as tight as it should have been.
I sure would like to fix this while the engine is on the stand, ( I still have a lot of work to do on the 72 Runabout), as it's so much easier to get at.
I haven't called Esslinger yet as I suppose I should. I was just curious as to any other occurrence of this problem.
Al
in Ct.