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#1
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470 overheats again
Well I'm really bummed, so I ran her for first time after repairs. Started great sounded great ran out and around fir about 30 min at 3/4 speed turned it off floated hung out for a bit. Pulled eng cover everything looked felt good. Started her up cruised back to dock hung out a bit started it again while idling at dock suddenly just quit. No cough no chug just stopped while idling at dock. Pulled eng cover and motor was too hot to touch coolant was good no steam or leaks from anywhere.
I really thought all repairs were done well. Had it done a a shop to get it done right and couldn't do it myself anyway. New gasket for raw water pump and new oil seals. Newused ex manifold, new used 4" heat exchanger . Risers cleaned and painted. Thermo replaced. What else is there to do to prevent overheating.? Temp gauges not working so I don't know if it all of sudden got hot or what Where next to look for cooling problem? Thanks Scott 
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#2
04-01-2011, 11:21 AM
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Surchin,
Sorry to hear about this... After having all that work done to your motor, I would definitely make sure you have a working temp gauge. First thing I would do is take it back to the shop that did the work. I would also double check to make sure that thermostat is good. Maybe you got a bad one? Maybe the wrong one? Just because it's new doesn't mean it's not bad. Skools, Ferm, or Spare will likely have a better idea of what you ought to check for, but like I said, the first step I would take is going back to the shop that did the work. I hope it all works out for you...
__________________
 1990 Hydrasports 2000cc Vector with 96 200HP Oceanrunner. Saved by grace alone, through faith alone, in Christ alone http://www.providencerpchurch.com/
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#3
04-01-2011, 11:49 AM
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yeah, i gotta get one of those I/R thermo temp gauges, before i go wiring in a new gauge set. Ill be going back to shop. im not sure if we checked / replaced the impeller in the drive. the project went on for so long and we were so focussed on engine we might have ignored the raw water intake, also it was replaced previous to this project, so may have assumed (bad word) it was good. gotta review mechanics time. Reviewing some past 470 repair posts it seems an overheat may damage this area too. anyway thats where ill start.
question on when it shut down, would an overheat just shut down suddenly? just quit like that? . i though maybe fuel problem but i guess that would sputter before it quit. Plus it was too hot to touch. Also, what mechanism in engine shuts it down when it gets too hot? it would not restart but would turn over. even after waiting 30-40 min.
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#6
04-01-2011, 08:16 PM
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raw water pump should havebene the first thing to replace
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