|
Who has the best top caps for XRs?
I need a pair Thanks |
Buy the stock XR caps from Merc for the XR's. They already have the bearings and race installed. Price is hard to beat too!
|
With any new cap the deapth of the race needs to be measured between old and new and the race thickness adjusted to compensate or the new cap will affect gear lash.
And use studs on the cap.. Dick |
Originally Posted by Mr Gadgets
(Post 3003388)
With any new cap the deapth of the race needs to be measured between old and new and the race thickness adjusted to compensate or the new cap will affect gear lash.
And use studs on the cap.. Dick Would this be the case if installing a new Merc cap in place of an existing Merc cap? Would it be an issue if new cap was part of a rebuild where the entire drive is done with new gears, bearings etc? |
This is an issue any time you attempt to just swap caps.. They should be measured. The XR ribbed cap I use has a little bit different depth than a standard XR and lot on a standard B1.
If the drive is being set up with new gears and the lash is done by the new method Merc uses, then the cap doesnt need to be measured, because in the process the gear depth is set by adjusting the shim for proper lash. In other words it takes care of it. Hope that helps. Dick |
Originally Posted by Mr Gadgets
(Post 3003049)
rssteiny,
I have two customers with 32 AT's. One with XR's on stand off boxes and one with XZ's without. Both are running Imco -2". Both in the 700hp range. The one with the XR's wore the gears out.. The one with the XZ's the uppers are still going strong. Not really an apples to apples. But my opinion has always been that if you dont have enough power to snap the teeth off of the helical gears, they will last longer. Both boats have been driven with respect, that is THE most important factor. A properly setup B1 with good top cap, will go a long way when driven with respect. The lowers are better with the XR propshafts, especially if air time happens and you dont have the feel for driving in that type of water.. XR upper gears have been snapping teeth off in the past couple of years, where they weren't before that. Hopefully someone will solve that problem in the future.. If you want to put bigger power and drive it without respect.. Then you will be better to step up to a drive like the SCX.. But everything will break if you try hard enough.. If you have questions.. pm me or you can call me. Hope this helps. Dick |
Originally Posted by US1 Fountain
(Post 3003108)
Very true! And then sometimes even when abused.
A friend of mine took both of his mid 90's drives and made his own steel towers for the uppers and also his 1" thick AL billet caps. Studded the housing and never had a drive break yet. He is running huge power (don't know HP, other than it pushes his 32 Fever in the upper 90's) This was a good 3 yrs ago, still going strong. He is also using the original gears, not the upgraded X-gears. Last yr he was makeing a video of his boat in front of our marina and was going full throttle from a dead stop to test the drives and caps. He uses his boat as a test platform since he does the steel tower and custom caps as a sideline of his business. He knows just 1 speed when out running, and it ain't slow. :) Is there a website? |
rssteiny
I dont know the full setup on both boats.. I know the one without boxes is 700hp at around 90mph, with 4 blade props. The other with boxes was a tad faster, I think and ran 5 blade props. That is all I can tell you. If you pm me your number I can give it to them and see if they would call and talk to you about it.. Dick |
xr caps
Originally Posted by Quinlan
(Post 3003173)
Who has the best top caps for XRs?
I need a pair Thanks |
Originally Posted by Floatindirty
(Post 3005316)
Is there a website?
|
| All times are GMT -5. The time now is 12:02 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.