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Old 05-04-2006, 11:45 PM
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Default merc 525SC's

tell me the good an the bad about them. i may have a line on a pair of take outs that the owner is re-powering to bigger HP motors. they are 2000's i believe, average use and hours but will need a freshining.
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Old 05-04-2006, 11:52 PM
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Default Re: merc 525SC's

I have a pair in my p-38 scarab! Great engine,always turn key!Use them in salt and fresh and never had to do anything except the regular stuff,tune up and oil changes!I added chillrers and pulleys aswell!200 hrs now and no signs of any problems !
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Old 05-05-2006, 12:00 AM
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Default Re: merc 525SC's

A buddy has trips in his 42' Fountain. Sweet motors. Also turn key.
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Old 05-05-2006, 04:26 PM
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Default Re: merc 525SC's

jjones- what gains did you see with the chillers and pullys. i have been told that is a good addition. i do like the way these sound and i know the history of the boat they are in since new
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Old 05-05-2006, 05:29 PM
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Default Re: merc 525SC's

YOU DOG !!!! ....I knew you'd be up to something...!!!..haven't splashed yet ...LOL....GREAT MOTORS...DO IT DO IT.. ..I GAINED 14 MPH... went from 22'' props to 28''.....runs stock till 4k..them hang on !!
Attached Thumbnails merc 525SC's-scarab-engines.jpg  

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Old 05-05-2006, 05:33 PM
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Default Re: merc 525SC's

heres the fresh bilge...
Attached Thumbnails merc 525SC's-050506_1056a.jpg   merc 525SC's-050506_1057a.jpg  
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Old 05-05-2006, 07:48 PM
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Default Re: merc 525SC's

getting a 38 Donzi in for a bunch of stuff an while its here we may do a Sterling 800/ Konrad Ace conversion. going to look into buying the drive packages after its done.

bilge looks good Dave. when ya gonne be ready for the water? i STILL havent touched mine yet but have reserved next week to get survey and maybe splash it at the end of the week.
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Last edited by glassdave; 05-05-2006 at 07:51 PM.
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Old 05-05-2006, 08:08 PM
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Default Re: merc 525SC's

Glassdave, I have a friend with 525s and they are very reliable. Lots of wot time, and over 400hrs of trouble free operation. We added chillers and pulleys and picked up a minimum of 5mph in a 33ft boat.
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Old 05-06-2006, 05:17 AM
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Default Re: merc 525SC's

If you have to freshen them, call Tyler Crockett, he can sell you a cam package that can make 600 hp without an intercooler. This is one sweet package. Ran like EFI. He sold me the components as cheap as I could get anywhere. Will require mild head work.
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Old 05-06-2006, 06:21 AM
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Default Re: merc 525SC's

I should be ready in a week or two...takin my time...motors are ready...still have to finish the Hydraulic helm..
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