View Poll Results: Bravo XR drive breakage
Broke upper gear set
71
82.56%
Broke lower gear set
15
17.44%
Voters: 86. You may not vote on this poll
Bravo XR drive breakage
#1
Bravo XR drive breakage
Taking a survey as to what you have personally had happen to your XR drive if it broke.
I need to know what failed first, not the other parts it took out in the process.
I am working on an improved upper gear set and also think the lowers are an issue for some as well.
Thx
I need to know what failed first, not the other parts it took out in the process.
I am working on an improved upper gear set and also think the lowers are an issue for some as well.
Thx
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#2
The lowers seem to last longer then the uppers by a pretty good margin, you'll twist a prop shaft off before you loose the gears. I think in the upper the case is the problem though, not so much the gear set. Once you get any kind of HP and the case starts to deflect it game over for any gear set.
In mine i scrubbed teeth off the upper gear set on the left hand drive. Also noticed the top cap bolts were finger tight leading me to believe they had stretched and lost tolerance. Didne really take anything else out but the gear.
In mine i scrubbed teeth off the upper gear set on the left hand drive. Also noticed the top cap bolts were finger tight leading me to believe they had stretched and lost tolerance. Didne really take anything else out but the gear.
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Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Last edited by glassdave; 12-20-2012 at 08:32 AM.
#3
Charter Member #1171
Charter Member
On the boats I deal with,,,,, I would say about 3 to 1 uppers to lowers
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I want to live in a world where a chicken can cross the road and not have its motives questioned.
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242LS (08-13-2023)
#5
Registered
I dont know about you guys, but Merc never should have done away with the TRS drives........ Of course they would have never made millions selling replacement equipment for the bravo drives------ like hooking up twigs to a tractor motor and expecting them to last....
Jim
Jim
Last edited by cigboat1; 12-20-2012 at 09:53 AM.
#7
I dont know about you guys, but Merc never should have done away with the TRS drives........ Of course they would have never made millions selling replacement equipment for the bravo drives------ like hooking up twigs to a tractor motor and expecting them to last....
Jim
Jim
I agree would have loved to see a second generation TRS type drive. Simple robust drive with a solid trans for six to eight hundred hp range . . . . or in other words Konrad
__________________
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
#8
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Join Date: Jan 2007
Location: Murrayville Georgia
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I dont know about you guys, but Merc never should have done away with the TRS drives........ Of course they would have never made millions selling replacement equipment for the bravo drives------ like hooking up twigs to a tractor motor and expecting them to last....
Jim
Jim
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105Fountain (08-13-2023)
#9
VIP Member
VIP Member
Only have had 1 of my lower sets go and 1 lower set
on a friends boat...have a pile of uppers tho.
on a friends boat...have a pile of uppers tho.