locating impeller

[glastrondx235]

I have a 2002 Glastron DX 235. 5.7L GL volvo penta motor. Last week the boat sensor would start beeping and slightly climbing in heat. It did this at 1500rpm or 3500rpm. It didn't matter who fast or slow I was going. After the alarm would start beeping, i'd idle down enough to be moving the boat and then with the water pumping in, about 30 seconds later it would stop beeping and the temp would go back to normal. My thought is the impeller needs replacing. I purchased a new impeller but am unsure where it's locted

 

[Bifflefan]

Re: locating impeller

it inside the lower half of the outdrive leg.
Get a manual and read it then it takes about an hour to put in the first time.
Easy as pie.

 

[Don S]

Re: locating impeller

it inside the lower half of the outdrive leg.

Volvo has NEVER put a raw water pump in the lower unit. It's always engine mounted.

To the original poster, in the future, when you have engine questions, you need to post the full model number or the Volvo serial number. Year of the boat is not always the year of the engine. Plus, the model tells us a lot more about the engine than just year.

Your pump is mounted on the front of the crankshaft harmonic balancer. Has 2 large hoses going to it.

 

[wkb2460]

Re: locating impeller

As always Don is correct

 

[krowey]

Re: locating impeller

that's why i love volvo penta!

 

[glastrondx235]

Re: locating impeller

2002 Volvo\Penta 5.7L GL-B SN#4012069653

I did find the water pump and found that 1 of the 12 legs on the impeller were broke off. I took the hoses off and found that inside the cirrculation pump that there were enough impeller pieces put 6 more legs on another impeller. They were wedged in there pretty damn tight. I don't know how any water was getting through at all. The owner before me must have always carried it to the same "bs" mechanic.

Would it be a good idea to replace the thermastat while i have all things off or is it safe to just have a spare for now?