4.3GL PEFS Temp Question

[bnicov]

Now that I have the engine running, I did some maintenance, new plugs, cap and rotor and I also replaced the thermostat since the operating temp never went above 120deg. The guage was replaced last year (a combination tach, temp, trim) and the problem existed before. I went with an original VP thermostat and gasket. Now, the temp guage is still not going over 120. I ran the engine for about 3-4 minutes and checked the water coming out the back and it was fairly hot (could be touched and not get a burn). What's next, a new temperature sender which is on the thermostat housing?? Or something else. The water circulating pump has been changed at some point in the past as well.

 

[Bondo]

Re: 4.3GL PEFS Temp Question

Ayuh,... It ain't gonna build any heat idlin' on the muffs for a few minutes,...

Test run it in the pond, under Load...

 

[Tail_Gunner]

Re: 4.3GL PEFS Temp Question

Ive experienced the same with a pefs. Volvo sets them up with a cold thermostat as to why i do not know. Some say lower temps for saltwater but i do not know if that has any credence..Just put in a 160 if you want a warmer engine...that is what i did just a personal prefrence

 

[Don S]

Re: 4.3GL PEFS Temp Question

Ive experienced the same with a pefs. Volvo sets them up with a cold thermostat as to why i do not know. Some say lower temps for saltwater but i do not know if that has any credence..Just put in a 160 if you want a warmer engine...that is what i did just a personal prefrence

Not shur why you say that TG, Volvo uses a 160? stat. Here is directly from the OEM manual for the EF.
If you order the OEM stat from Volvo it's 160?

 

[Don S]

Re: 4.3GL PEFS Temp Question

Are you sure the thermostat is up inside the thermostat housing properly? It's also going to take more than 3-4 minutes to warm up.

 

[Tail_Gunner]

Re: 4.3GL PEFS Temp Question

Hmm ok well the boat was new i assumed it was factory stuff...i guess someone could have popped in a lower temp thermo for what ever reason..But just as the OP my gauges read 120..popped in a 160 and it now register's 175 on a hot day. Actually it was the tech at the marina he told me it was set up for salt...never heard of such a thing but went along with it..Live and learn i guess.

 

[bnicov]

Re: 4.3GL PEFS Temp Question

Thanks for the replies. I haven't had a chance to splash the boat yet but that should happen in the next 2 weeks. I will report back once it's in the water for a run. The thermostat is nice and snug in it's housing along with the o ring.