Greetings,
I purchased this boat last year with a blown engine, the PO overheated it and wiped it out. I replaced the engine over the winter and got it running well. I then forgot to drain water from manifolds and exchanger and cracked them, no damage was done to the engine.
I ordered replacement manfiolds and bought another heat exchanger from a local. After some research i have found that the mercruiser exchagner i bought has an extra port on it for a heater, dont know which port is actually for the heater but figure ill just block it off.
The old heat exchanger was installed incorrectly, it was a san juan setup with the radiator cap on the thermostat kneck. The exchanger itself was located above the radiator cap, if i opened the cap, all coolant would come out. I have my suspicions that this was causing an air bubble in system and likely why old engine failed after 5 years. When i filled the system up after motor replacement, i had to remove one coolant hose from the exchanger to add coolant.
I considered ordering an identical replacemetn exchanger and mounting below the engine where it belongs, though there is not enough room for it.
The replacemetn I purchased is a mercruiser unit with the radiator cap built in, I know the cap needs to be the highest point in the system. The exchanger has a total of five ports on it.
Will I have any problem using this system exchanger with me Volvo penta exhaust manifolds. There are a lot of hoses and im starting to get confused, and im starting to get anxious because i should be fishing. If i had a few extra $$ i would pay someone to finish it. Im very mechanically inclined, just need a little guidance on the plumbing.
Does anyone have a diagram or something, my old manifolds only had 1 hose going to each, some picutres i have found online have multiple lines going to the manifolds.
I can post pics if it would help, really hoping for sea trial this weekend. It ran great when I started it prior to the manifold and exchanger freeze up.
I can post tons of pics if it would help, just tell me what you need to see.
Chad
I purchased this boat last year with a blown engine, the PO overheated it and wiped it out. I replaced the engine over the winter and got it running well. I then forgot to drain water from manifolds and exchanger and cracked them, no damage was done to the engine.
I ordered replacement manfiolds and bought another heat exchanger from a local. After some research i have found that the mercruiser exchagner i bought has an extra port on it for a heater, dont know which port is actually for the heater but figure ill just block it off.
The old heat exchanger was installed incorrectly, it was a san juan setup with the radiator cap on the thermostat kneck. The exchanger itself was located above the radiator cap, if i opened the cap, all coolant would come out. I have my suspicions that this was causing an air bubble in system and likely why old engine failed after 5 years. When i filled the system up after motor replacement, i had to remove one coolant hose from the exchanger to add coolant.
I considered ordering an identical replacemetn exchanger and mounting below the engine where it belongs, though there is not enough room for it.
The replacemetn I purchased is a mercruiser unit with the radiator cap built in, I know the cap needs to be the highest point in the system. The exchanger has a total of five ports on it.
Will I have any problem using this system exchanger with me Volvo penta exhaust manifolds. There are a lot of hoses and im starting to get confused, and im starting to get anxious because i should be fishing. If i had a few extra $$ i would pay someone to finish it. Im very mechanically inclined, just need a little guidance on the plumbing.
Does anyone have a diagram or something, my old manifolds only had 1 hose going to each, some picutres i have found online have multiple lines going to the manifolds.
I can post pics if it would help, really hoping for sea trial this weekend. It ran great when I started it prior to the manifold and exchanger freeze up.
I can post tons of pics if it would help, just tell me what you need to see.
Chad
