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07-21-2014, 10:27 AM #1
best way to clean out the coolant passages in a 2.5 block
Fighting an overheat problem in 95 200 promax. Not thermostats, water pump or poppit.
My thinking is maybe there is a blockage in the block somewhere from a serverly overheated impeller. Maybe a piece of rubber stuck somewhere? Have no idea where else to look. According to my temp guages it looks to be the stardboard bank.
Motor will idle but as soon as you get on plane the motor temp continually rises to 200+.
Pulled head, not a blown head gasket.Allison XB02, 22ft Tritoon 225 4 stroke, two seadoo sparks
Past rides 2001 STV EURO, Allison Grandsport, STV RiverRocket, STV Euro, STV ProComp, Hydrostream V-King
RIP RPM RACING
RIP GTS1
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07-21-2014, 04:37 PM #2
A common place for trash to get lodged is the holes on the bottom 4 cyls. where the water leaves the exhaust divider to fill the block, I have a block sitting on the bench with some crap caught there.
is gone
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07-21-2014, 08:46 PM #3
is the reason i installed sea strainers after pickups on the boat keeps junk out of the block there is plenty junk floating out there
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07-21-2014, 09:53 PM #4
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07-21-2014, 10:03 PM #5
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07-22-2014, 06:11 AM #6
Aye..you can pull the divider and peek down there.