"Don White" wrote in message
...
JimH wrote:
snip..
If the marina replaced the impeller when I asked them to earlier this
season I would never have had the overheating problem. I will let them
slide on this one but will make sure it the impeller is replaced every 2
years in spring prior to launch. No sense monkeying around with a $40
part.

snip..

Wonder if they ever charged you for that service they didn't perform?

Nope. And I found out how the "diagnosed" the impeller to come to the
conclusion I did not need to replace it................they ran the engine
for an hour, including a spin out on the Lake and watched the temperature
gauge.

I am only going to use these guys for basic maintenance and repair, and I
will be replacing the impeller myself in the future just before Spring
launch. I no longer have any confidence in their mechanical abilities.

As a side note.........my Volvo repair manual says the engine takes a 160F
thermostat and that is what I installed in spring.

The mechanic who worked on my boat says it takes a 140F thermostat and that
is what he installed.

The engine is a 1997 Volvo Penta 4.3L with an SX outdrive.

Will running the wrong thermostat temp have a negative effect on the
engine's performance?