Oil temp problem in my 572, need input/advice....
10-06-2014, 01:45 PM
#22
Charter Member
Charter MemberThread Starter
Bingo .. that's it change t-stat its like 25-30$ just went thru this. t-stat closed, no flow to cooler..go to BAM web site put in HP500..u will c a diagram of the filter/housing with the t-stat set up. it has a spring that holds it in place, but also keeps a non functioning t-stat closed. its essentially a diverter valve.
I just called and ordered 1 and the O-ring also.
Thanks for your input.
Dean
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10-06-2014, 02:44 PM
#24
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Quick and easy way to check flow to cooler,touch test on the inlet hose. Not sure if it bypasses all or most when spring is closed, but if you're only seeing 185 after a run I'd think it's working.
10-06-2014, 11:12 PM
#27
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10-06-2014, 11:51 PM
#28
Registered
iTrader: (3)
the 15 50 oil has a lot of friction modifiers and when they start to break down the pressure will drop.im no oil expert but i would say the straight 40 oil did not drop in pressure because it has very little friction modifiers.i also suspect that when the breakdown is happening the oil starts to foam up causing the drop in pressure.this is why i suggested the 20w50 and the brands i did.i have used these oil,s with great results.i will also add that todays multi weight racing oils are rated at about 200 degreese before they flow like 50 weight oil.also,when you shoot the oil cooler with the ir gun it is reading the water temp,not the oil temp,that is why it shows 85 deg,that is the incoming water temp.try one of the brands i suggested in 20w50 and let us know if the pressure drops with the same running conditions.this is just me thinking and i may be all wrong or maybe right on?
10-07-2014, 12:46 AM
#30
Registered
True an over full crank case in any engine will get aerated and foam due to interference with the recp. assembly. A problem none the less. but maybe not his re: high oil temps. 20w-50 v-twin Mobil is a good example of a stout product that stands up well in our marine conditions.
