I am really new to mechanical of the Detroit 8v71 pls I’ll take all the ridicule with pictures, where are the impellers and pls talk to me like a 4th grader and should I just do like always and call a mechanic. I’m really trying to learn to do some of the basics.
thanks
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Thread: Engine help
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Re: Engine help
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10-16-2019 10:49 AM #13
Re: Engine help
oops--my bad
Last edited by ageless; 10-16-2019 at 10:22 PM.
'88 55'C hull 394 BEATs Therapy
12-71 TA's ZF BW190 1.5:1 gears
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10-16-2019 11:57 AM #14Senior Member
- Join Date
- Jul 2013
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Re: Engine help
I'm confused (or dumb lol). Few questions:
1. What temp are your engines currently running at? @ What RPM?
---- if you have temp readings at different rpm's it can often help pinpoint where the issue is.
2. How are you taking temp? Dash gauges? IR? Digital temp sensor?
I installed a digital temp sensor and we see 185-186 at cruise (1850rpm's). At WOT it creeps up, but we are still overproppped so I'm pretty sure that is the source of overloading so we don't stay at WOT long.
I know everyone is pointing you to engine/cooler components, and rightfully so. But the first question I would ask is what is your WOT rpm when loaded for your bahama's trip?
My last comment, running the engines cold, is almost as bad as running them on the high side of the temp window. I would NOT put cooler thermostats in unless there was a damn good reason, and running at 186deg is not a good reason to put in a lower temp thermostat. Running colder does NOT increase engine life. The engines were designed to run at a certain temp, in a perfect world they run that same temp all the time. But... at idle our cooling systems are WAAAYY overkill and at WOT they are just robust enough to do the job.Last edited by rustybucket; 10-16-2019 at 12:01 PM.
SOUTHPAWS
1986 52C Hull #391 8v92TI
PENSACOLA, FL
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Re: Engine help
Guys, GUYS!! It’s a 13 year old overheating issue post.
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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10-16-2019 01:04 PM #16Senior Member
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