Hi people, I've been on this list off and on for many years. Time to get
back on as I'm looking at an 81 air-cooled that is making a sound
notoriously like a loud valve, except it is coming from the center of the
engine along the case split line. I am thinking it is a tappet. It rises and
falls with the engine rpm. The engine remains a strong runner with no blue
observed, or lack of power/acceleration. The engine is the stock 2.0 L air
sucker. My questions are:

1. Would I be pretty accurate with this assumption?
2. Any other thoughts on what it could be?
3. Can this tappet be removed without splitting the case? I forget if these
are the traditional mushroom shaped valves type 1's use.
4. Any other help on checking this thing over before I decide to buy.
5. Thanks!

Regards,
Courtney

                            "PROUD TO BE CANADIAN"