New to Volvo family

[Lou C]

Yes that’s it

 

[tfret]

these? link

Ok got it. I just can’t understand why I can’t get pressurized water up to the impeller. Even if I squeeze the muffs together by hand. It’s almost as if there is a valve in the circuit that doesn’t open until the key is on or something. ??

 

[ESGWheel]

It’s almost as if there is a valve in the circuit that doesn’t open until the key is on or something. ??

That does not exist.

But here is an off the wall thought: I have seen hoses with internal delamination before. Like a long time ago. Possible that is an issue? Other than stripping it down, here is another off the wall thought: scope it. Here is a link to a WiFi scope that connects to your smart phone. For 30 bucks cannot go wrong (I have personally used this model this for a variety of things and very happy with it > easy to set up and use). Pull the input hose to the raw water pump and scope it back to the sterndrive. Unsure if it will work but heck, seems like there is something funky going on so do some funky things….

 

[Lou C]

There are a few places where you can have a loss of water pressure or a clog:
Loss of pressure:
Rotted rubber water tube grommets inside drive
Plastic hose fitting in the bell housing can crack
Clog:
Crud sucked up into the cooling system can clog the water intake holes in the lower unit and the power steering cooler on the back of the engine

 

[tfret]

That does not exist.

But here is an off the wall thought: I have seen hoses with internal delamination before. Like a long time ago. Possible that is an issue? Other than stripping it down, here is another off the wall thought: scope it. Here is a link to a WiFi scope that connects to your smart phone. For 30 bucks cannot go wrong (I have personally used this model this for a variety of things and very happy with it > easy to set up and use). Pull the input hose to the raw water pump and scope it back to the sterndrive. Unsure if it will work but heck, seems like there is something funky going on so do some funky things….

But I don’t have any cooling issues.

 

[tfret]

There are a few places where you can have a loss of water pressure or a clog:
Loss of pressure:
Rotted rubber water tube grommets inside drive
Plastic hose fitting in the bell housing can crack
Clog:
Crud sucked up into the cooling system can clog the water intake holes in the lower unit and the power steering cooler on the back of the engine

But I have no cooling issues.

 

[ESGWheel]

Oh, I thought you have no cooling issues with boat in water but on muffs you do (no water getting to impeller).

 

[tfret]

Oh, I thought you have no cooling issues with boat in water but on muffs you do (no water getting to impeller).

I’m afraid to run it on muffs out of the water. But if it were clogged somewhere wouldn’t I have cooling problems in the water?

 

[ESGWheel]

I will try to help but may be at the limit of my expertise in this area. I think the following are true statements, if not please correct where needed.

1. The boat runs fine in the water > no overheating or any cooling issues.
2. The boat on the trailer will idle fine using the Blue Cap flush connection, no overhearing or any cooling issues.
3. When using the muffs, due to the excessive leak by of the muffs, there was concern that the muffs were not sealing so did not run the engine. With more clamping force on the muffs to get them to seal, still had excessive leaking such that suspected something clogged or a valve not open. Did not run the engine. Instead, based on some suggestions, took off the feed hose to the Raw Water Pump, hooked up the muffs and no water coming out of that hose. What the heck? Still did not run the engine on the muffs and instead seeking advice on why no water seen coming out of this disconnected hose when it should be pouring out.

Are the above 3 statements correct?