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Volvo tamd41 cooling problem

M

mjfulcher

Guest
boat runs 170-175 @ 2500rpm.W

boat runs 170-175 @ 2500rpm.When pushed to 3000rpm temp climbs over 200 almost 210.pull back to 2500 & it cools back 170.3000 rpm cruise speed.New salt water pump& all belts.In process of cleaning heat exchanger & oil cooler.Any advice?
 
" same engine same problem. C

" same engine same problem. Checked impeller, sea water filter, removed thermostat - no fix.

Did you find problem? "
 
" hey joe, ihad heat exchanger

" hey joe, ihad heat exchanger cleaned & also cleaned oilcooler.engine is running 175-185 at 3500 rpm.seems good.

mitchell "
 
"Make sure the water pipe from

"Make sure the water pipe from the raw water pump to the oil cooler is not restricted. I did full cooling system overhaul on TAMD41A & still had high RPM overheat, found the intake pipe almost blocked at drain cock with calcium build up. cleared the blockage and presto! she runs fine.
It is hard to pick from looking at water volume at low or idle speeds as water flow is adequate for those speeds."
 
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