[TR] Valve ticking

[Christopher A Kantarjiev]

On 7/29/22 11:00 AM, triumphs-request at autox.team.net wrote:
>   You'd have to have a very slim feeler gauge to adjust them correctly.

Indeed. I have a feeler gauge set that is round wires rather than flat 
blades, and it makes this measurement a lot easier. But if your rocker 
arm tips are wearing unevenly, you've probably gone through the hardened 
surface (and might also be getting wear on the bushing that you can't 
see) ... so it might be time for a rebuild. More about that in a second ...

I use a tool called Gunson Clik-Adjust to set valve clearances, because 
it takes the entire wear of the system into account. Rather than 
measuring only the clearance at the tip, it works from the point where 
the entire rocker arm system is tight against the valve stem and then 
backs out in a controlled fashion. It seemed hokey, but it works quite well.

When I first got my TR4A, it had really low oil pressure. I did a bunch 
of work on the bottom end, to little effect. Someone suggested the 
rockers - the shaft and bushings were *very* worn to the point that much 
of my oil pressure was disappearing there. I sent the assembly off to 
Rocker Arm Specialists in Northern California; they transformed my worn 
out rocker train into a thing of beauty. I sent them a lot of work over 
the years (and sent a lot of others their way). Sadly, the proprietor 
sold the business in order to retire, and the new owners didn't make a 
go of it ... but it appears that they're back!

http://www.rockerarms.com/pages/about.html