Maney gearbox outrigger

Has anyone out there fitted one of these?



There are four problems to deal with:

1) An outrigger shaped hole has to be chopped into the inner primary case - on the face of it, this seems straightforward. Needless to say, I will be fitting a belt drive!

2) If a double gearbox adjuster is fitted, then it can't be fixed in the normal way, as the top of the outrigger blocks access to the adjusting nut on the drive side. I plan to deal with this by simply turning the adjuster through 180 degrees, drilling a new hole in the cradle and having the adjuster facing to the front of the bike instead of the back - as shown below.



3) The round block of the adjuster will sit on top of the outrigger (in the recess to the left of the 'MANEY') rather than on the surface of the cradle. Simply turning the round block over makes everything fit flush because the adjusting screws are not welded to the middle of the blocks:





4) I don't think there is a number four (or, are the mounting bolts now long enough?). I think they are, just about - I will reassess when I actually fit the box.

I would appreciate the views of the wise. IOW, am I going about this in the right way, or has someone come up with a better/different methodology.

Cheers, Bob

I installed one, but my job was made a little less complicated by the fact that I used a MkIII cradle with no adjusters. It does look like you've found a decent solution though.

The hole in the back of the primary cover took quite a bit of time using a skil saw and a file. It's pretty thick aluminum for starters and I wanted to preserve as much of the integrated chain guard as possible. Finally, I didn't want it to look like a hack job.

Good luck.

Hi David, thanks for your reply - I did notice in an earlier posting that you had fitted one of these and were hoping that you would spot my request.

And yes, by 'straight forward', I meant I knew what I will have to achieve. I am in no way looking forward to the task of actually cutting an ok looking hole in the chaincase. I think it will be drilling and joining up the holes in the first instance and then the file and small grinder. However, this job is on hold until the bottom end goes in the frame.

Cheers, Bob

I have fitted one and done the chopping just used a dye grinder with a 1/32X4 inch cut off wheel a little wax on the blade will keep it from binding. Drill four 1/2 inch holes at the four corners of the cut out first and leave the radius at those corners. That's just a 40 min job, but making a template located off the main shaft hole with the belt drive adjusted well that takes a bit longer.
I too was upset about loosing my second adjuster. I had flipped them over as you did. I had been running the belt for some time before fitting the outrigger and so I knew that it was right and set to start. Without loosing that adjustment I got the thing installed and once that was done the outrigger's design took all that strain and it stayed straight. I would consider doing it this way fit the belt drive prove it's adjustment than without moving it fit up the outrigger.
A friend had done this all before me and had warned me about these issues and it helped a lot thought I would pass this along for you.

Norbsa. Thanks for that. My plan had been to cut the hole with enough clearance on each side to allow for adjustment of the belt, but it is obvious that I can make a more professional looking effort if I use your method. It also makes sense in view of Ludwig's comments re belts not stretching.

Thanks, Bob

Ludwig.

Since I purchased the outrigger, I have read comments declaring their value and others that suggest that they are only really necessary if the bike is to be ridden as it would on a race track. Therefore, my purchase may or may not be a wise one and, looking at and reading about your very impressive lightweight bike, I certainly do not have your knowledge and appreciation of the finer points of motorcycle engineering to help in my decision making. The aims of this project are to produce a bike that is quicker than standard, reliable and oil tight; the outrigger is obviously intended to enhance reliability. If it is unneccesary, then it will be just one of no doubt any number of incorrect judgments I will make. My most important aim is to enjoy myself, and part of that is sometimes to get things wrong and then have the satisfaction of putting them right. So, now i've got the outrigger I may as well fit it but, unfortunately, I will never be able to know if it helps matters or is just a bit of extra weight.

I like your suggestion of fixing the gearbox position and may consider this mod next Winter (assuming I get the bike up and running this Summer). My only questions are: Do the belts really not stretch and what if a replacement belt needs to be fitted?

If the outrigger is for ornamental purposes only , hang it on the wall of your living room

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A both informative and hilarious comment...........

Don't sweat making some mistakes along the way any honest person will tell you they also have been down this path. If you are using a belt drive the outrigger goes hand in hand. Anything you can do to get the clutch basket stable will help belt life. When you get your bike to the point where you can roll up to the ton in third gear than you will find the need to roll the throttle back from that speed. If you could have a camera viewing the basket during this time you would see the need. I go 220lbs and that puts some strain on this system so I don't see this as a racing mod it's a finger in the leak in the dike.

Greg, that's a pretty good scenario to describe cause and effect as relates to need or excess.

You done anything with that slingshot?

Brining this post back to life. My outrigger showed up today and I am looking for instalation pictures. Anyone got any. Looks simple enough, but a picture of an installed one would be nice.

bwolfie said:

Brining this post back to life. My outrigger showed up today and I am looking for instalation pictures. Anyone got any. Looks simple enough, but a picture of an installed one would be nice.

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Bwolfie,

I think enough of them that I have purchased 3 Maney outrigger bearings. I'm not sponsored by Maney-but actually bought them when the dollar had a decent exchange rate to the pound. One is mounted on my Formula 750/BEARS racebike with a 40mm belt, the other is going on the new racebike also 40mm and the last is 30mm going on the Stealth Canyon Racer :shock: I have not set up the inner primary on the mill yet so can't show you a cutaway yet.
I can tell you that I raced at Willow and Miller Friday practice at both events plus morning practice and two races Sat and Sun. We also had it on display at the Bonneville Vintage GP booth at World Superbike on the rollers and even though I it was always checked never had to adjust it all season. It's difficult to get a shot and I didn't get to clean the bike after 3 days of racing.












And the yet unmolested inner primary of the Stealth Canyon Racer :shock: that comes off for the outrigger bearing

Cheers,

Tom Kullen
Event Coordinator
Bonneville Vintage GP
http://www.bonnevillevintagegp.com
tomkullen@bonnevillevintagegp.com

I have the same 40mm belt drive. as I sit and think about it, I am leaning twards ditching the inner and outer primary and making an aluminum guard. My only problem with the outrigger is with it installed it puts an upward force on my gearbox output shaft and then puts a binding load on the inner. Something is not right. I need to stare at it for a while before I start to wreck something.

I have an unnatural urge to get one of those.

http://www.stevemaney.com/products.html


Gearbox outrigger … £95.00

Spare sealed bearing … £14.98

swooshdave said:

I have an unnatural urge to get one of those.

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of course - and then post about 50+ pics of it! :mrgreen:

pvisseriii ,

Very nice bike! Cafe Racer or are you gonna race it? Your exhaust looks like a Maney but has more curves.


Cheers,

Tom Kullen
Event Coordinator
Bonneville Vintage GP
AHRMA 44x Formula 750/BEARS
2010 AHRMA Sportsmen of the Year
http://www.bonnevillevintagegp.com

mikegray660 said:

swooshdave said:

I have an unnatural urge to get one of those.

Click to expand...

of course - and then post about 50+ pics of it! :mrgreen:

Click to expand...

Words are cheap and pictures are free.

utahnorton said:

pvisseriii ,

Very nice bike! Cafe Racer or are you gonna race it? Your exhaust looks like a Maney but has more curves.


Cheers,

Tom Kullen
Event Coordinator
Bonneville Vintage GP
AHRMA 44x Formula 750/BEARS
2010 AHRMA Sportsmen of the Year
http://www.bonnevillevintagegp.com

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I wish! That's not mine, I just fixed the image links for peter nelson.

pvisseriii said:

I wish! That's not mine, I just fixed the image links for peter nelson.

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Ha! I knew if I just clicked over to page 2 someone would have fixed that photo link. Swoosh, you're slippin, I thought you would have gotten it but pvisserlll beat you to it. Thanks for the fix guys.

Welcome to the forum Peter, not many of us even try to post photos on our 1st. post. Nice bike! If you've got any more photos of your Norton maybe you should practise your photo posting skills though.