Both the 140 and the 160 should work fine. As another poster pointed
out in raw water cooling the use of a 140 helps slow the effects of
salt water. I would install a 160 next time I had a reason to take it
out but I would not make a special exercise out of replacing it. If
you previously have had overheating issues your mechanic may have been
trying to mitigate other problems by running a lower temp thermostat.
The water leaving your engine and going into your manifolds and risers
should be cooler with the 140.

JimH wrote:
JohnH wrote:
On 9 Jul 2006 15:53:13 -0700, "JimH" wrote:


JohnH wrote:
On 9 Jul 2006 05:46:35 -0700, "JimH" wrote:


JohnH wrote:
On Sat, 8 Jul 2006 21:58:21 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:


" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
...
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!


Thanks for all the replies. Looks like I will be telling the marina to
install a 160F thermostat...........on them. ;-)


No problem, JimH. Glad to help you out.
John H

******************************************
***** Have a Spectacular Day! *****
******************************************


Sorry John, but you did not help out (I failed to find any good and
meaninful advice you offered on the thermostat) and the thanks was
certainly not directed to you.

Have a superfragilistic day!!!!

Well, I'm certainly sorry the web site with the part numbers and the advice
on the manifolds and risers wasn't helpful. Who knows, maybe you'll get 15
years out of them - set a record!

Your response, after I unkillfiled you so I could be helpful, was mean and
spiteful. I thought, since you'd not told any lies or called anyone an
asshole for more than 48 hours, that you'd turned over a new leaf.

I'm glad to hear all is well with the boat, and I hope the problems with
the basement work themselves out. I've thought of getting a generator, but
have decided that the cost and hassle is not worth it. If I lost all the
food in my freezer and refrigerator, it would be nowhere near $4000-5000
worth of food.
--
John H

******************************************
***** Have a Spectacular Day! *****
******************************************

Sorry if I hurt your feeling John. All you did was post a site that
listed thermostats. Prior to that you kept telling me to replace my
risers and manifolds. Can you get it in your head that I boat in
freshwater and the engine has low hours?

You did not help me with this thermostat question and if telling you so
was mean and spiteful then you are one of the most sensitive persons I
have ever met on the net.

Look back at your initial post John to see who made the mean and
spiteful remark.

Keep up with the lies and nasty remarks about me, ..


OK! I'll do that!
--
John H

******************************************
***** Have a Spectacular Day! *****
******************************************



No doubt about it. ;-)