JimH wrote:
Reginald P. Smithers III wrote:
JimH wrote:
My Seloc repair manual for my 1997 Volvo Penta 4.3L with and SX outdrive
says the engine takes a 160F thermostat. That is what I installed in
spring.

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

Does anyone know the correct thermostat temperature rating for this engine?

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

TIA!


JimH,

I have always followed the mfg'ers recommendations, it just makes sense that they know the best parts for their engine. Volvo recommends a
thermostat in the 160-170 degree range. It might not be the case, but
when a mechanic, especially one who forgot to change my impeller in the
spring, recommends something different than the mfg'er I assume it is
because that is what he has in stock.

I know I would be looking for a new mechanic.

--
Reggie

That's my story and I am sticking to it!

I don't know for certain if the engine calls for 160F or 140F, even
though the Seloc manual says 160F. Thus my questions which you did
not answer.

Where did you get the idea that the mechanic forgot to change the
impeller?

I am not ready to look for a mechanic. For all I know he may be right.

Can anyone else address my questions?

Your Selco manual; is CORRECT. The Therm. should be 160 degrees
according to Volvo specs. Which I thought I did address, sorry.

I thought I read that you told the mechanic to change the impeller and
they didn't.

Your mechanic is incorrect, and he knows he should absolutely know Volvo
recommends a 160 degree therm. Anyone who has been in the business
anytime at all would know that Volvo has always run their engines hotter
than Merc. If he doesn't know this, it is even more reason to run to
another mechanic.
--
Reggie

That's my story and I am sticking to it!