Engine Temperature spike

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JoeGer
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Re: Engine Temperature spike

Postby JoeGer » Fri May 17, 2019 8:00 am

If after checking it’s not working, what T-stat would you recommend? Any standard 160 deg for the 1984ish 318?
1984 28’ Sedan Fly-bridge
Twin 318
Lower Detroit River, USA

Fastjeff
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Re: Engine Temperature spike

Postby Fastjeff » Sat May 18, 2019 6:39 am

140 for raw water cooled and 160 for closed cooling.

Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington

jralbert
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Re: Engine Temperature spike

Postby jralbert » Sat May 18, 2019 1:36 pm

I used to use standard automotive stats (rarely had to change one).
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD

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JoeGer
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Re: Engine Temperature spike

Postby JoeGer » Sun May 26, 2019 7:21 pm

Ok, replaced both 160 deg thermostats with the 140 deg type. Both engines running a tad cooler and no temp spikes on STBD to speak of. I feel confident that this issue is now closed. Thx everyone for comments and support. Makes me wish I had more issues to solve :-)

Sincerely,
Joe
1984 28’ Sedan Fly-bridge
Twin 318
Lower Detroit River, USA

jralbert
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Re: Engine Temperature spike

Postby jralbert » Sun May 26, 2019 9:58 pm

Looking at Jeff's post up a few items, we assume you have raw water cooled engines. Yes? meanwhile, glad to hear you got the results you wanted
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD

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JoeGer
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Re: Engine Temperature spike

Postby JoeGer » Mon May 27, 2019 5:03 am

Joel, yes! They are raw water cooled
1984 28’ Sedan Fly-bridge
Twin 318
Lower Detroit River, USA

thepaintman
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Joined: Tue Jan 30, 2018 7:30 pm
Location: Erie Canal

Re: Engine Temperature spike

Postby thepaintman » Tue May 28, 2019 9:08 am

Careful about what you wish for. Don't forget it is a boat.
69 River Cruiser houseboat
Twin Chrysler 318's
Hydraulic steering both stations
All new wiring ac/DC
New chargers, galv isolator
Running Erie Canal from mile 240.3