XR Top Cap goes Kaboom Anyone been thru this?
Good luck on getting her back together!! 
06-17-2004 | 06:21 AM
#12
Thread Starter
Platinum Member
Joined: Dec 2002
Posts: 15,270
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From: Burlington, VT
Re: XR Top Cap goes Kaboom Anyone been thru this?
Originally Posted by Strip Poker 388
I have seen a bunch of pinion gears the first to go. Knocking out teeth like a Mississippi redneck in a bar fight drinking old Milwaukee best draft.His girl friend is the same way [Toothless]and she is from Arkansas ,She's the one he was in the fight with when he lost his front teeth 
06-17-2004 | 07:09 AM
#16
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Joined: Dec 2002
Posts: 195
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From: Lake Champlain, VT
Re: XR Top Cap goes Kaboom Anyone been thru this?
Sorry to hear about your trouble!
The way the drive is designed, whichever rotation uses the upper clutch/gear in the upper housing is much weaker than the one that uses the lower clutch/gear. The driving gear on the primary shaft from the engine and the driven gear in the drive are trying to push each other apart. The lower gear in the drive has the entire drive housing to support it and resist downward force. The upper gear has only the top cap to resist being forced up. Which is which depends on engine rotation and prop rotation.
My Ford/Volvo setup runs lefty. Is is not uncommon to blow the tops off these setups when run with right hand props (much easier to find) and a few extra ponies.
Good luck and hope to see ya on the water soon!
Frank
The way the drive is designed, whichever rotation uses the upper clutch/gear in the upper housing is much weaker than the one that uses the lower clutch/gear. The driving gear on the primary shaft from the engine and the driven gear in the drive are trying to push each other apart. The lower gear in the drive has the entire drive housing to support it and resist downward force. The upper gear has only the top cap to resist being forced up. Which is which depends on engine rotation and prop rotation.
My Ford/Volvo setup runs lefty. Is is not uncommon to blow the tops off these setups when run with right hand props (much easier to find) and a few extra ponies.
Good luck and hope to see ya on the water soon!
Frank
06-17-2004 | 08:52 AM
#17
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Joined: Oct 2001
Posts: 250
Likes: 3
From: Ohio
Re: XR Top Cap goes Kaboom Anyone been thru this?
Been there, Done That,
I won't go in to all the gorry details but both times I was running in flat water and the Cap just "Blew Off".
First incident I was starting to throttle up to get on plane and the Cap Blew off just as you describe. Left the corners and the bolts and the rest was just MIA. I was in The intercoastal south of Key largo at the time.
The second time I was in fresh water and the same thing. Just starting to throttle up to get on plane and the otherside blew.
My suggestion is to go to some sort of Billet Cap and fix it once and for all.
Best,
Rie Hauler.
I won't go in to all the gorry details but both times I was running in flat water and the Cap just "Blew Off".
First incident I was starting to throttle up to get on plane and the Cap Blew off just as you describe. Left the corners and the bolts and the rest was just MIA. I was in The intercoastal south of Key largo at the time.
The second time I was in fresh water and the same thing. Just starting to throttle up to get on plane and the otherside blew.
My suggestion is to go to some sort of Billet Cap and fix it once and for all.
Best,
Rie Hauler.
06-17-2004 | 09:31 AM
#19
AT Cult Member #3
Joined: Oct 2000
Posts: 20,711
Likes: 17
From: Pa.
Re: XR Top Cap goes Kaboom Anyone been thru this?
GLH, sorry for your troubles!!!! Enough of that..........break out the plastic and get that fixed for this weekend!! No Excuses!! (All this from a guy thats not even bringing his boat with him!!! 
) See you up there! 
) See you up there!
06-17-2004 | 09:57 AM
#20
Platinum Member
Joined: Dec 2000
Posts: 80
Likes: 12
From: Tequesta, FL
Re: XR Top Cap goes Kaboom Anyone been thru this?
GL,
I noticed on "out of Control" I have 7/16 studs for the top caps. They have to be machined to accomodate the larger stud. I am having lunch with Philly tomorrow I wil ask him if this is why they went larger.
I noticed on "out of Control" I have 7/16 studs for the top caps. They have to be machined to accomodate the larger stud. I am having lunch with Philly tomorrow I wil ask him if this is why they went larger.
