overheating

[Cliff24]

I have a 1999 Glatron with a volvo penta 3.0...the engine starts and runs fine on idle. As soon as I'm up on plane, the temps quickly rises.When I come back down it quickly goes back to normal. I had the thermostat and implala replaced and still does the same thing. I'm looking for some info to where to go next???

 

[Bondo]

Re: overheating

Were ALL the Pieces of the Old Impeller Found,+ Removed ??????????<br /><br />Do you run in Salt Water ?????<br />Is the Riser Clogged ?????<br /><br />Sounds like a water Flow Problem..........

 

[Cliff24]

Re: overheating

the boat has never been in salt water, and I had the implala and thermostat replaced at a glastron dealer so I don't know if any fragments of the old one were found..and as for the riser..not meaning to sound dumb..tell me what and where it is and I'll check it..this is my first time with a I/O anf I'm getting fustrated ty bondo for any help you can give me!

 

[Cliff24]

Re: overheating

an anyone help??

 

[Bondo]

Re: overheating

The Riser is the big block of cast iron bolted to the back-end of the exhaust manifold......<br />Where the Exhaust,+ Cooling Water Leave the engine.........<br /><br />Bring it Back to your Dealer,+ Have THEM Finish the job they Started.......<br />Back-Flushing from the T-Stat will normally flush the Broken Pieces of impeller out through the in-coming water line, from the outdrive....<br /><br />Reguardless, You've got a Flow Restriction, SomeWhere............. <br />Good Luck.......<br /><br />BTW, Find yourself a Manual for your driveline......<br />Then You'll Know What I'm Talking About...........

 

[elpaso]

Re: overheating

Hey Cliff - you break down and buy<br />a manual yet.

 

[TwoBallScrewBall]

Re: overheating

I would double check the Implala. Take it back to the dealer and tell them it's still overheating.

 

[geokrause]

Re: overheating

Pull the hose coming from lower unit that goes into the thermostat when it is in water and running - should squirt out like a small water hose. If good there - ask dealer if the impeller was actually gone - if yes, you may get away with pulling the head and removing rubber from the cooling passages that will be stuck in the head gasket - BUT...<br />If you got it pretty hot - probably will need to replace head.<br />If it runs fine in driveway with ears on -- but heats up under load, I'd look to cracked head - then block.