Number Six refresh
09-30-2008 | 03:19 AM
#23
Platinum Member
Joined: Jun 2006
Posts: 104
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When do you feel the need to refresh the drives? I have about 90 hours on mine, and figured they have a ways to go. Are you talking 200 hours it is absolutely necessary, or is it something you do to keep your reliablility high?
I kind of assumed with constant fluid changes, not running hard, they don't need a lot of work, am I wrong?
I kind of assumed with constant fluid changes, not running hard, they don't need a lot of work, am I wrong?
09-30-2008 | 06:21 AM
#24
Registered User
Joined: Oct 2003
Posts: 9,495
Likes: 6
You never know. If you have a clearance a bit off, if you got just one very heavy gear loading and lifted a tiny portion of a gear face, that's all it takes to begin a downward spiral. Opening them up, reshimming & resealing is not a bad idea, compared to what broken gears, shafts and cases cost.
Refresh intervals are relative to how much power and how you use them. On a time vs. power chart, the curve wouldn't be a straight line. In other words, you don't get half the hours at 1200 hp that you would have with 600. Not a straight-line relationship. Compound that with the 3rd dimension of those unknowns like the occasional bad landing or the holeshot here & there and you complicate things even more.
100 hrs is a good interval for a non-raceboat.
Refresh intervals are relative to how much power and how you use them. On a time vs. power chart, the curve wouldn't be a straight line. In other words, you don't get half the hours at 1200 hp that you would have with 600. Not a straight-line relationship. Compound that with the 3rd dimension of those unknowns like the occasional bad landing or the holeshot here & there and you complicate things even more.
100 hrs is a good interval for a non-raceboat.
09-30-2008 | 07:17 AM
#25
Platinum Member
Joined: Jun 2006
Posts: 104
Likes: 0
You never know. If you have a clearance a bit off, if you got just one very heavy gear loading and lifted a tiny portion of a gear face, that's all it takes to begin a downward spiral. Opening them up, reshimming & resealing is not a bad idea, compared to what broken gears, shafts and cases cost.
Refresh intervals are relative to how much power and how you use them. On a time vs. power chart, the curve wouldn't be a straight line. In other words, you don't get half the hours at 1200 hp that you would have with 600. Not a straight-line relationship. Compound that with the 3rd dimension of those unknowns like the occasional bad landing or the holeshot here & there and you complicate things even more.
100 hrs is a good interval for a non-raceboat.
Refresh intervals are relative to how much power and how you use them. On a time vs. power chart, the curve wouldn't be a straight line. In other words, you don't get half the hours at 1200 hp that you would have with 600. Not a straight-line relationship. Compound that with the 3rd dimension of those unknowns like the occasional bad landing or the holeshot here & there and you complicate things even more.
100 hrs is a good interval for a non-raceboat.
09-30-2008 | 07:41 AM
#26
VIP Member
Joined: Jan 2004
Posts: 2,530
Likes: 5
From: Sherman, Texas
Mercury Racing's dry sump six drive refresh program at X-Site test facility in Panama City, FL. X-Site contact number, 850-769-1011....................and BAM Marine in Pompano Beach, FL, does Mercury's tranny rebuild program.
09-30-2008 | 07:45 AM
#27
VIP Member
Joined: Dec 2001
Posts: 10,398
Likes: 404
From: Cape Coral, Florida
When do you feel the need to refresh the drives? I have about 90 hours on mine, and figured they have a ways to go. Are you talking 200 hours it is absolutely necessary, or is it something you do to keep your reliablility high?
I kind of assumed with constant fluid changes, not running hard, they don't need a lot of work, am I wrong?
I kind of assumed with constant fluid changes, not running hard, they don't need a lot of work, am I wrong?
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Happily retired and living in Heavens waiting room.
Happily retired and living in Heavens waiting room.
09-30-2008 | 08:05 AM
#28
Registered
Joined: Apr 2001
Posts: 6,305
Likes: 36
From: Naples, Maine
09-30-2008 | 08:09 AM
#29
NorTechNorth.com
Joined: Dec 2005
Posts: 396
Likes: 1
From: Wherever We Need To Be
705 487 7575
09-30-2008 | 04:58 PM
#30
Registered
Joined: Jan 2005
Posts: 209
Likes: 0
From: Akron, Ohio
www.Simmonsmarine.com located here in ohio, Races opa 20+ years experience, In high performance drives.
Last edited by 89scarabIII; 09-30-2008 at 05:00 PM.
