I was wondering if this process should be haft to be done so often?

[Jon]

It is very important to have the valve lash set on a 3208 Caterpillar
engine every 35 to 40 thousand miles. As the engine runs, the valve
lash slowly changes and with it the efficiency level of the engine. My
3208 had not had it done in over 60,000 miles and when I got the coach
I took it to EA Martin Caterpillar in Springfield MO and they set the
engine up. I can tell you the difference in the performance was
awesome! I am also told that if valve lash is not set and is allowed to
go long enough it is possible to start popping valve heads off into the
pistons and needless to say that means a major overhaul. I am convinced
that the 3208 engine is a tough one if it receives the proper care and
while it might not be the fastest thing on the road, it will still get
you there in grand style!!

Is this a true statement? I thought that the Vlv Lash on a 3208 only
needed to be adjusted at 100,000 miles? Is this an overkill?