On Fri, 04 Apr 2008 10:16:46 GMT, "Hoges in WA"
wrote:


"Bruce in Bangkok" wrote in message
.. .

I would like to make the suggestion that individuals who pose
questions, especially complex questions like the recent Yanmar
governor problem, be encouraged to post the results. What did he/she
do and what was the result.

We all learn from experience, whether our own or others and I feel
that a follow up post telling the group what was done and what was the
result would be beneficial to all readers.

I still don't know if the guy fixed his governor and what he did to
repair it. If the guy down the dock has the same problem how will I be
able play expert and tell him how to fix it :-)

Bruce-in-Bangkok
(correct email address for reply)


I agree.

I'd like to know about that bloke with the off-Compass but he hasn't posted
back as far as I can see.
Hoges in WA

Bruce is right, but IMO boat group posters are more likely to post
solutions than auto group posters. Can't count how many "hit-and-run"
seekers of help I've seen on the auto groups. They'll provide problem
symptoms, get multiple possible solutions, then disappear without ever
revealing the fix. I've run into many such dead ends that way.
I mentioned here a case of a bad resistor that fixed one fellow's
stalling problem. He had taken it to e-mail. A couple weeks later I
realized the fix wasn't in the group so I posted our correspondence
there after removing his email adder. Maybe it helped somebody.
The computer hardware groups are subject to this too, but not as much
as the auto groups.
Though the Yanmars are fairly common, the hunting problem (if that's
what it is) apparently isn't.
Having had a couple "almost impossible to diagnose" auto problems
that were tangentially related to heat, that's where I'd concentrate
the premise of the diagnostic approach.
Even knowing nothing of diesel throttle regulation, I assume the fuel
pressure/flow inputs and outputs of the governor can be measured,
though it might entail some effort and expense to set up the gauges.
What controls the governor rpm setting? Electrical tach? Vacuum?
Fuel pressure?
Too much I don't know about it. I'm a bit surprised that a good
Yanmar mechanic hasn't solved the problem, but suspect that one has
never been present when the problem occurred.

--Vic