Rebuilding A Tired VP Motor?

[HPBoats83]

I have a 7.4 GSI Volvo in my boat with about 150 hours on it and was wondering about how long it should last. What kind of life should I see out of that motor with Royal Purple oil changes every 20ish hours? When I do have to rebuild the motor what am I looking at cost wise? Is that going to be like a couple grand or like 10 grand to refresh it. When the motor get's like 500 - 1000 hours on it do I need to do a complete rebuild and if so what will that cost approx? Any info would be appreciated!
James

[Havasu Hangin']

How long the motor lasts mechanically is going to depend on how you treat it. If you are wondering how tired it is, I would pay for a leakdown test- that will tell you how tight the holes are.

[RiverOtter]

:idea: How did you ware a 7.4 out in 150 hrs? It is possible to run them somewhere between 500 and 5,500 rpm's :D
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I've had several 7.4 mercs and gotten well over 500 hrs with no prob's. In my 370 DA I think we were over 700 hrs. BUT I don't drive my boats like I stole them :D

[HPBoats83]

:idea: How did you ware a 7.4 out in 150 hrs? It is possible to run them somewhere between 500 and 5,500 rpm's :D
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I've had several 7.4 mercs and gotten well over 500 hrs with no prob's. In my 370 DA I think we were over 700 hrs. BUT I don't drive my boats like I stole them :D
I'm not saying that my motor is worn out now. It was just more of a general question. This is my first boat that I owned and wasn't sure about the longevity of them since they see much higher RPM's. One of the main reasons I'm interested though is I would like to buy a used 8.1 GSI because they have about 45ish more HP and would make my boat go as fast as I want it to. So with buying a used motor I wanted to "refresh" it a little before using it. Just something I was thinking about.

[SB]

One of those should go 10-20 years no problem.

[HPBoats83]

I'm averaging about 100 - 150 hours per year. 10 years equal 1,500 hours.....that will be a tired ass motor by then and besides I pray I don't have that boat for 10 years anyways.

[SummitKarl]

How long the motor lasts mechanically is going to depend on how you treat it. If you are wondering how tired it is, I would pay for a leakdown test- that will tell you how tight the holes are.
best advice right there;)
I am learning with my VP, every 100hrs or less....WATER PUMP!!!!! Water pump , water pump;)
It's a VP....I doubt it's even fully broken in yet:D
BTW HH.. found my prop....apparently very rare.....14/3 x 28p SST straight from Volvo (very long blades).....waiting on pitch blocks to come in, S/B about a 30p when done...got it Knifed and cupped so far........works great runs out to 5300 RPM

[RiverOtter]

I'm averaging about 100 - 150 hours per year. 10 years equal 1,500 hours.....that will be a tired ass motor by then and besides I pray I don't have that boat for 10 years anyways.
LOL! Does anybody keep a boat for 10 years :idea:

[RP2]

I have a 7.4 GSI Volvo in my boat with about 150 hours on it and was wondering about how long it should last. What kind of life should I see out of that motor with Royal Purple oil changes every 20ish hours? When I do have to rebuild the motor what am I looking at cost wise? Is that going to be like a couple grand or like 10 grand to refresh it. When the motor get's like 500 - 1000 hours on it do I need to do a complete rebuild and if so what will that cost approx? Any info would be appreciated!
James
I would make sure that 150 hours is correct because your boat was made in 1998-1999 and 150 hours seems low.