Has anybody broke outer transom plate?
01-31-2012 | 05:32 AM
#32
Gold Member
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
No talk of the HP gimbal helmet failure yet on this thread so I thought I'd chime in.
While trying to burn the last of my gas right before pulling my boat last Oct, I broke my port drive helmet/bellhousing right at the hidge pins. I was pulling around 5000rpm(85ish) and boom.. It didnt disrupt the boats attitude, thankfully.
Im not sure if the XR input yoke broke first, it showed signs of maybe being cracked, or the dropping of drive alignment caused the u-joint assm to blow up?? All I know is I have some carnage.
Planning on new IMCO rings and helments for 2012.
Are the rings breaking before the helmets? the helmets seem a weaker link then the rings?
LE
While trying to burn the last of my gas right before pulling my boat last Oct, I broke my port drive helmet/bellhousing right at the hidge pins. I was pulling around 5000rpm(85ish) and boom.. It didnt disrupt the boats attitude, thankfully.
Im not sure if the XR input yoke broke first, it showed signs of maybe being cracked, or the dropping of drive alignment caused the u-joint assm to blow up?? All I know is I have some carnage.
Planning on new IMCO rings and helments for 2012.
Are the rings breaking before the helmets? the helmets seem a weaker link then the rings?
LE
02-01-2012 | 05:40 AM
#35
Charter Member #601
Joined: Dec 2000
Posts: 3,276
Likes: 5
From: Holland, Mi USA.
So what let go, first? Did the gimble break or did the pinion get forced out the front of the drive and take out the helmet? Or did the helmet break due to some side loading??
Sure looks like a disaster..
I had one break, but the gimbal pad broke then the helmet was ripped off.. Not a pretty site.
Sure looks like a disaster..
I had one break, but the gimbal pad broke then the helmet was ripped off.. Not a pretty site.
02-02-2012 | 03:13 AM
#39
Registered
Joined: Sep 2003
Posts: 332
Likes: 0
From: Lake Erie, Ohio
So what let go, first? Did the gimble break or did the pinion get forced out the front of the drive and take out the helmet? Or did the helmet break due to some side loading??
Sure looks like a disaster..
I had one break, but the gimbal pad broke then the helmet was ripped off.. Not a pretty site.
Sure looks like a disaster..
I had one break, but the gimbal pad broke then the helmet was ripped off.. Not a pretty site.
Im not sure if the helmet broke first then caused the u-joint assm to loose alignment and blow up.. Or the yoke shaft broke and wound up the u-joint assm, and blew the helmet apart and off the ring.
I'm leaning toward the helmet breaking. But, when the input yoke shaft broke it left 1 u-joint cup on the shaft and 1 in the carnage. Looking at the shear point you can see 2/3rds of the sheared area looked fresh, but 1/3rd or so looked aged??
So its hard to say which came first, the chicken or the egg..
The drive was intact, short of the input shaft being hard to turn. After examination, one of the driven gears brass threaded clutch rings was loose on the gear, it spun off at least 1 full rotation binding up the shifter fork. I was thinking that when the drive fell out of alignment it might of tried to shift into reverse, causing the gear issue and probably ruining my clutch. The clutch shaft lower bearing race is damaged, but its not related. Thats another thread..
LE
