Merc 575'S ?????
 

Just doing a little browsing around and a few boats that stand out have twin Merc 575's.........can anyone educate me a little on these motors........are they reliable? How many hours before rebuild? Is there extra yearly maintenence due to the blowers? What is the correct drive? When I am ready to step up I would love to have the extra HP of these motors (31' to 35' boat) but I love the reliability of a 496 or 525......am I over concerned or should I stand clear...............keep in mind I am no mechanic.....my marina handles all service and repairs for me............................

Re: Merc 575'S ?????
 

good turn key engines 300-500 hrs. thursty
just do a search at the top of the page on the right..all kinds of info

Re: Merc 575'S ?????
 

Dependable, stay off the sticks and you should easily get 400 hours. Also, it does love to drink the gas when you put the hammer down.

Re: Merc 575'S ?????
 

They're a sweet motor.
Only thing to watch out for is the blower.
They need to be serviced every 100 to 150 hours by a good blower specialist. I recommend the Blower Shop. Very easy to pull a reliable 700 HP out of these motors.
Steve

Re: Merc 575'S ?????
 

Just my opinion, but you are better off with the 525's. I have spoken to alot of engine guys and for the HP difference between the 525 and 575 is very little, ( i believe 30 HP or so to the prop) and 525's dont use the gas like the 575. just my 2 cents

Re: Merc 575'S ?????
 

The 575's whine is awesome at WOT. Great engine!

Re: Merc 575'S ?????
 

Hey John,

We can talk about this. Give me a call or if I dont get dumb, Ill call you. Looks like a good weekend coming. Are you around? I am off Monday as well.

Vinny

Re: Merc 575'S ?????
 

i had a pair of 575's in my 42 fountain with xr drives. Put 111 hours on the boat without a problem and the whistle is awsome.

Re: Merc 575'S ?????
 

I'm using 3 of them in my O/L and I love them. They are thirsty at WOL. The blower whine at WOL is awsome. I've got about 250 hours on them and only had a bearing failure in one blower. Just replaced it with one from the Blower Shop much better design compared to the Weilands.

Re: Merc 575'S ?????
 

Great engine. I had mine rebuilt @290 hrs. Once opened up, I found that I probably could have done another 300+ hrs before rebuild. Bloweres DO need to be serviced / upgraded. Blower Shop does it for much less than $1k per blower.
Great engine. Not really as thirsty as the comments above. I get same fuel economy as a 525.
The throttle response is wicked! :evilb:

Re: Merc 575'S ?????
 

Thanks for all the input guys...........looks like I might look much more seriously at a boat with the 575's then I originally would have.........not pulling the trigger on anything yet but I am starting to look.........

Re: Merc 575'S ?????
 

Hey John,

Call me later when you get off from work. Weather sucks today. I will be running around all day, call my cell.

Vinny

Re: Merc 575'S ?????
 

Another thing as far as reliability , we raced a full race schedule w/ twin Mercury 575's in 2002. The motors were flawless and were WOT just about every minute they were running. Never a hiccup. I plan on putting one in my 28 next year.

Re: Merc 575'S ?????
 

How fast would a pleasure model with a 575?

Re: Merc 575'S ?????
 

5 blade Herrings , I think 30's and worked - 90 mph. We had lifting eyes on the boat and weighed 13,200 lbs w/ fuel.

Re: Merc 575'S ?????
 

There were two sc's used- the Holley I think had undersized sealed brgs on the back of the rotors. mine seized at 140 hrs and took out the rotors/housing. The other has wet brgs at each end. If you have Holleys I would either change brgs every 75 hrs or just buy the blowershop kit- otherwise strong reliable detuned blower motor. Good luck :drink:

Re: Merc 575'S ?????
 

Mine always treated me well.

Re: Merc 575'S ?????
 

Could there be a reason there's a disproportionate number of 575s on the market and they're always the "bargains"?

Re: Merc 575'S ?????
 

I'm waiting for a bargain and I'm snagging one. I guess it's the whine at WOT.