Why don't you see boats with high engine hours?
 

I have what is probably a stupid question. Why don't you ever see boats for sale with say 1000 hours? If you get your engine rebuilt do hours go back to zero? I just bought a boat with a stock 502 with 440 hours. Is that a lot? If I do a search of lifespans of those engines you get from 1500 to 2000 hours, but I've never seen a boat for sale with those kind of hours. If anyone can enlighten me please do.

those hour's are for cruiser's , fish boat's and run about's . most high performance boat abuse the motor's to much to get those type of hour's . if you baby it then im sure you could get rely high hour's

mike

My little brother put 1200 hrs on a pair of 420 that we built (in one year) and that was with a switch for throtles ,wide open or idel no in between,we call it the Chucky switch lol.

Most go-fast guys run them hard and rebuild them at low intervals so they don't have a catastrophic breakdown.

1200 hours!! :eek:That is 50 days of nonstop running, 24 hours a day.

Thats a whole lotta hours.

Yeah that's 23 hours a week for a year. Or 3.28 hours a day, every day for a year. Seems a little unrealistic...

thats also like 60000 miles at 50mph . . . . . . hmm . . . . now i know Chucky personally and know it is certainly feasible if he had an unlimited budget and i do believe he had that summer off, I dont believe his budget could have sustained the $175,000 needed for that trek though (adjusted for 2007 gas prices) lol . . . . . course everytime i here that story it also goes up by like a hundred hours. lol :drink:

BUSTED!!!!:lolhit::lolhit::lolhit:

OP,

I don't know enough of engines to count, but what I do know, is that Dave's knowledge is something that I won't question. :kiss:

hours
 

sold a 29 outlaw with almost 600 on 454 mpi twins. Other owner is still running it fine. If they are tired you would never know it. Boat still ran 69 to 70 all day. He should be around 700 now

Sold my 2000 29 Outlaw with Over 750 hrs 454 mags. NOW it is pushing 900!
Change oil every 30 or less.

Now the Cig w 400hrs and KABOOM!!
F@ck me

Cause they blow up.

http://www.offshoreonly.com/forums/a...1&d=1304464687

http://www.offshoreonly.com/forums/a...1&d=1304464687

hour meters arent on everything and dont reset unlesss you get a new one or tinker with it. Hour meters are more or less for the overall of the boat on go fasters. And engines dont last a long time with these boats cause people beat them. Ive heard and seen plenty guys talk about getting 1000hrs out of them with Normal use. Also to be blunt the majority cant afford to run these boats all day long all the time. Thats why you see them anchored with hot babes on em more than anything

I have a friend with a 27 fountain that has over 900 hours on the stock 454 mag. It is still running strong, but he is building another engine because he knows he is on borrowed time.

I have one word for all of diesel - you give up alittle in the drag race department but you'll run harder for longer.

I'm sorry I could not resist that:party-smiley-004:

average speed on the gps was 5 mph that year do to all the idol time around the dock.......to many math magicains lol

I have over 1100 on my 454 mags. They are going to get redone this winter. So they will be pushing 1200 by then.

that makes me feel pretty good about the 375 hours on my 89 454 Mags :D

That chit will buff right out... good for another 500 hrs :drink:

Given my engines are far from high performance, my 350mags have over 900 on them and still run strong.

And that Baja still runs like a champ unbelieveable but it's the truth. One of my old bullets is pushing 900 hours with only a valve job and oil changes. 10 years of realiable running. He knows he's pushing the envelope but just wants to see how long they will last. I've tried to get him to freshen it for the last 3 years he says if it's not broke don't fix it.

Back in my Parasail Boats days we could get 3000 to 4000 thousand hours out of the 330 hp 454s.And they were ran hard and put away wet.

Problem is most go fast guys are Newbies and don't know a phuckin thang about engines. It's not the runnun the chit out of them that kills them it is the not knowing when they need a little love and kiss to continue the relationship that they miss.

I have 760 hrs on 496s, 375 mags motors run perfect.
Change oil every 30 hrs and dont build them.

I think the key to longevity engine life is respect-maintance and keeping it in stock form. My opinion is extreme performance mods blowers-turbos make the engine disposible.

Offshores are driven at higher rates of speed so when the guy in the cruiser takes 3 hours to hit destination we get there in 1.

Typically motors in offshores don't wear out, they have catastrophic failures from, overheating, blown head gaskets, eating valves, and so on.

I run my 6.2's @ 2800-3200 RPM whenever we are driving the boat, sometimes I will open it up but that is not often.

Why the low hours?

easy answer - Boat engines are subjected to continuous loads not seen by other forms of transportation. If you were to compare to an auto it would require the equivalent of towing a heavy trailer uphill with the trailer brakes dragging- the entire trip.

It isn't unheard of to see a high hours engine as you've seen in these posts, but it isn't common for sure.

Uncle Dave

another consideration is the fact that most of us have an ultimate desire to go faster... thats what brings us to this arena of boating. the need for speed typically ends up leading to the desire of more power (new engines) or a bigger boat with bigger engines (selling boat with lower hours)

Thanks for the input guys. So would you mess with your stock 502 mag with 440 hours or leave it alone? If you were to freshen it what does that entail and what does it cost?

My 05 525's have 330 hrs, still feel great. They are never abused and get Merc 25W-40 every 25 hrs.

I have 320 on my HP500EFI's, no change. I did rebuild the heads around 280 hours.

So what is the record for HP500/efi/525 NA?

+1
Good one, as soon BANKS gets his light weight wonder durmax out there we will all switch!

Cat where are you?

Sorry had to Joe.:lolhit:

Client brought a boat by last night he's selling - old hour meter was notorious for working - then not working - then flipping back 30 or so hours - has it for sale and the potential buyer wanted a reading out of the MEFI ... I guess around 400 - he said "No Way it's over 150" .... 398.8.... pay up bish....