Maney Crankcases

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As the DS is the more vulnerable weak side Steve Maney offers DS only case to mate to factory TS for less total mass and less wallet weight lost. Its kind of haft fast adequate solution with visual mis match evidence to be proud of or explain away is all. Many supplies an alternator adapter mounter and opened up inner primary case to run oil bath chain or dry sealed belt. I've a spare Maney alt. adapter Peel don't need. 40 mm belt will fit with alternator w/o spacing out cover, just the stator and rotor 10-ish silly mm's.
 
Out of curiosity, how many hours should it take a skilled motorcycle mechanic to swap out a crankcase?
 
What I don't get is how after such a massive imploding like this happens,, you guy's can still figure out what happens first. Is it just time with these motors & a understanding of what the week spots are, or can you actualy look at what's left & ferrit it out??
 
Johnnymac said:
Out of curiosity, how many hours should it take a skilled motorcycle mechanic to swap out a crankcase?
Click to expand...

Well I swapped out a crankshaft one late evening in about 3 hours and raced it the next morning. I would not say I followed all the recommended procedures however. Jim
 
A race bike is so paired down and well fitted ahead of time its not fair to compare with a road going bike with all the accessory clutter to handle then replace. You also need to examine everything, crank, bores, cam, rods shells so even if magically opened still lot of time for the shoe eves needed. I'd say if nothing else in life intrudes, maybe 6 hr to get crank on the bench then double that on the re-assembly if taking no breaks and ever tool is ready to go and no bent or broken off stuff to deal with. I've swapped a head gasket out on a work break in less than 2 hr to ride back same day all tight and nice.
 
Johnnymac said:
Out of curiosity, how many hours should it take a skilled motorcycle mechanic to swap out a crankcase?
Click to expand...

I have done it but it was over a span of time with no deadline to speak of. If I did it again I can assume it would take half as long and if done yet again , less time then that.

For us non professionals with some experience I might think 8 to 12 hours but more than likely 16 hours over a 2 day period. I think that's fair.
 
hobot said:
As the DS is the more vulnerable weak side Steve Maney offers DS only case to mate to factory TS for less total mass and less wallet weight lost. Its kind of haft fast adequate solution with visual mis match evidence to be proud of or explain away is all. Many supplies an alternator adapter mounter and opened up inner primary case to run oil bath chain or dry sealed belt. I've a spare Maney alt. adapter Peel don't need. 40 mm belt will fit with alternator w/o spacing out cover, just the stator and rotor 10-ish silly mm's.
Click to expand...

Hobot, I am not sure Steve does that these days.....actually I don't know if he ever did....

Nor am I sure why you would want to do it.....the chances of making a good 'pairing' with all of the 750 and 850 options out there is pretty slim....even the saving is a bit false after you have paid shipping, import and taxes, and then do the job again when either the cases don't mate as you would like and maybe need machining to get a good barrel seeting/location, or the timing side distorts pulling up to the much more rigid Maney case....or fails later

A 'pair of cases' is one drive side and one timing side.....made to fit each other accurately.....Andover Norton sells a 'pair'......Steve sells a 'pair'

Pretty sure that with either, barring major blow ups....once you have a new pair you won't buy another pair for that engine....
 
Hi Steve

Hobot (Steve) is correct Steve used to sell just a stronger timing side casing.

Buying a pair of strengthened cases just makes much more sense though.

Chris
 
SteveA said:
Hobot, I am not sure Steve does that these days.....actually I don't know if he ever did....

Nor am I sure why you would want to do it.....the chances of making a good 'pairing' with all of the 750 and 850 options out there is pretty slim....even the saving is a bit false after you have paid shipping, import and taxes, and then do the job again when either the cases don't mate as you would like and maybe need machining to get a good barrel seeting/location, or the timing side distorts pulling up to the much more rigid Maney case....or fails later
Click to expand...

Steve definitely used to match up a drive side half with a customer timing side half. That's how he started in the crankcase business, just making the drive side half. I had him do several like that for me back in the late '90s or early 2000s. Most of the crankcase breakage at the time was in the drive side half, so that's what he fixed first. He said that he eventually started to see the stock timing sides crack instead, so he added a timing side half to his line and started selling them as a "pair". I haven't asked him, but I think you are correct about him no longer doing the drive side matched to a stock timing side. When he was doing them, he did all the machining to match them properly.

The pictures below shows one of Steve's drive side halves fitted to a stock timing side half. In this case the half is one of the magnesium castings Steve tried. He didn't make many in mag, and quit because he was concerned about their reliability.

Maney Crankcases


Maney Crankcases


Ken
 
Chris said:
Hi Steve

Hobot (Steve) is correct Steve used to sell just a stronger timing side casing.

Buying a pair of strengthened cases just makes much more sense though.

Chris
Click to expand...

Chris,

It would make things much simpler if you would consider changing your name to Steve.
 
I got a quote from Maney for a crankcase set. Shipped to the USA and machined for standard primary drive the cost is $1850.00......Which is entirely too rich for my blood at the moment. I'm sure they are great... but I think I'll have to pass at the moment.
 
bwolfie said:
Maney cases are cheap compared to these....
http://www.ebay.com/itm/Norton-Commando ... ca&vxp=mtr
Click to expand...

One for the price of two! Sheds in New Zealand must be getting expensive these days!

$2000 dollars more than I paid for my Maney cases, and I would still have to grind off pieces to get them in my Rickman Frame....

BUT, apparently I would feel less vibes?, wonder if they used Jim's long rods/lightweight pistons.....

Looks like the cam location is set up for needle rollers....

BTW, do you all know who Graeme Crosby is?......More of an '80s Kawasaki/Suzuki guy than a '70s Norton guy.....but a hell of a rider....and entertaining!
 
The billet probably adds a lot to the cost. I considered machining a set of Vincent cases from billet, but the cost of the al. Billet alone was about $2,000. I suppose it would leave enough shavings to melt down and make 2 more sets of cast crankcases, if one had moulds!(big IF)

Glen
 
I used to think that N. Z. Was only a source for cool stuff like the Britten!
I hope to get there someday to see the land and the vintage racing culture.
Anybody out there want to do a house swap? I live about 2 hours from the best skiing in Colorado and there is always a working Commando in my garage!
Mike
 
SteveA said:
bwolfie said:
BTW, do you all know who Graeme Crosby is?......More of an '80s Kawasaki/Suzuki guy than a '70s Norton guy.....but a hell of a rider....and entertaining!
Click to expand...
Click to expand...

Anyone who followed 'Superbikes globally in the late 70's to early 1980's would and everyone down this way.
I was in his dealership buying some bits for my 74 H2B,they had lent me their micro fiche which I got put on to paper to make it easier to order parts.
He heard the word H2 walking past the parts counter (He raced one) and so I got the grand tour of the place (upstairs/downstairs) including the early Kawasaki's being restored full time.
To top it off I got a NOS switch block at dealer cost since it had been on the shelf for some time.
His book is not a bad read.

http://www.motorsportretro.com/2009/08/ ... interview/
 
mikie3117 said:
I used to think that N. Z. Was only a source for cool stuff like the Britten!
I hope to get there someday to see the land and the vintage racing culture.
Anybody out there want to do a house swap? I live about 2 hours from the best skiing in Colorado and there is always a working Commando in my garage!
Mike
Click to expand...

Those billet cases would have to be the best in the world for Commandos surely. (start of oil-type thread here)

Mike - house in Auckland with Laverda in garage, for house in Colorado? Sounds interesting to me.

Andre
 
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