|
|
|
|
|||||
|
||||||
From: (no name) (no email)
Date: Sun Apr 01 2001 - 15:51:01 EDT
In a message dated 03/26/2001 10:08:21 PM Eastern Standard Time, CHibboat
writes:
>
> PS. Assuming that you might be overheating from your interest. About 20
%
> of the engines that I've played with on this basis had restricted fuel
> filters...Lean fuel can definitely overheat you, many times with no real
> noticeable drop in rpm...power yes...
>
Carl, thanks for the info, although I do not understand how a diesel engine
can have a lean fuel problem.
I am not overheating. My Detroit 6V-53 runs at about 170, up to 180 if I
push it. I have several thermometers on the engine, one on each manifold
(V-6 engine), a Murphy gauge on one feed line and an electric sender for
remote reading on the block. I tested all of them once, including the
thermostats in a water bath using several thermometers (dial and mercury, the
mercury was the best) to read the water temperature and found major errors.
The Murphy gauge was returned to the factory for replacement. The folks
there were quite put out about it, claiming that their gauge could not
possibly be bad. It was and they did replace it. The two dial gauges on the
manifolds were right on. The electric gauge sender on the block was way off.
When I brought it back to the NAPA store where I bought it they admitted
they sold me the wrong sender for the indicator they sold me and eventually
came up with the proper, and accurate, sender.
The thermostats are 180 degree and operated properly.
But the best thermo device aboard is also the cheapest (about $10) and
simplest. It is a normally open thermoswitch held against the rubber exhaust
hose with a spring around the hose. The switch closes at 120 deg. On the
genset it shuts down the engine. On the main engine it rings a bell. The
rubber hose is the first thing that gets too hot if you loose seawater flow,
the primary cause of overheating on my engines. It has shut down the genset
three times so far due to plugged sea suction strainer or thruhull. I
cleaned out the debris and was off and running again. Without that little
switch it would have meant three exhaust hose replacements, not a fun day.
Before the switch was installed I burned up a main engine hose. It is 5" id
and twenty feet long. It was not a fun day.
Norm
Norm
___________________________________________________________________________
|| The Live-Aboard List : send a "subscribe" or "unsubscribe" request ||
|| in body of message to: ||
|