MK3 rearsets n MK3 owners

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madass140

madass140

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I'm doing another batch of Rearsets for MK3. I need to confirm the alignment of the linkages on the shift (left) side.
As I dont have a MK3 at my disposal I need some help, I have 2 suggestions for request for help from a MK3 owner.
(1) I'll send you the shift side and you fit it and give me feedback and return it to me at no expense to you of course, I'll owe you a beer or 2
(2) I'll sell you a complete set at a discount as long as you give me fairly quick feedback. I normally sell these for $440 + 60 shipping in the US
so I'll do the complete set for $400 shipped. preferably in the US.
Don
MK3 rearsets n MK3 owners

MK3 rearsets n MK3 owners

MK3 rearsets n MK3 owners
 
Don, your stuff is always so beautifully made. I don't have an MK3 so I can't help you with fitting your newly developed parts, but I have a question that I hope you have time to answer. Looking at the picture below that you posted, Why is the right side foot lever always welded on to the face of the footpeg's arm? The left side lever looks so much cleaner the way it's welded straight into the base of the footpeg? Is there a reason why they both don't look like the cleaner design? Thanks in advance

MK3 rearsets n MK3 owners
 
Don,
Exactly what information do you need. Unfortunately my bike is apart right now and I have no idea when I will be able to get it together, but I left the linkage together. I had it set up and operating perfectly when I removed my engine so I can take some measurements if that will help. If you think I can help PM me and explain what you need and I'll try to get back to you ASAP. Right now I have to dig out from under the new snow we just got.
Pete
 
Thanks Pete but it would be better if my complete shift side was bolted up with the 3 x 5/16" mounting bolts , and then the alignment to the shift shaft can be assessed. When I did my first batch of these it became clear that the Z plate mounting face was not at 90 degrees to the crossover shift shaft.
I assume the welded frame plates which the Z plates mount to are not in line with the frame which I would expect they should be.
Don
 
I assume the welded frame plates which the Z plates mount to are not in line with the frame which I would expect they should be.
Click to expand...

I assumed they were in line with the tube as well, but just checking on a frame shows

MK3 rearsets n MK3 owners


So it central to the tube at the bottom but at the top it nearer the outside, it shows the same both sides and on a 72 and 75 frame.
 
what you are showing is how its supposed to be the frame is about 10mm wider at the bottom of the welded bracket than it is at the top of the welded bracket.
Don
 
Don,

I don't think the cross shaft rod is a 90 degrees to the primary. When I install the rod through the inner primary and slide it into the connector it appears to be at an angle. The shifter looks like it's at 90 degrees because of the way it attaches to the outer primary. PM sent

Pete
 
then maybe my theory that the frame plates are not in line with the frame is not correct, maybe you are right and it is the cross shaft. so that would make the cross shaft facing forward on the left side? or looking down, instead of being 90 degrees it would be a bit more. is that how you see it?
 
madass140 said:
then maybe my theory that the frame plates are not in line with the frame is not correct, maybe you are right and it is the cross shaft. so that would make the cross shaft facing forward on the left side? or looking down, instead of being 90 degrees it would be a bit more. is that how you see it?
Click to expand...

Don,
I'm at work right now so I can't take a look. If memory serves me correct, if sitting on the bike the gearbox end of the crossover was farther to the rear. No sure about the up/down measurement, that is a hard one to notice with out going in and deliberately looking for it.
The important thing is because of the way everything is assembled the stub shaft that comes through the outer primary looks pretty square to the rear set linkage. Because of the way the clevis's have an offset slot I was able to play with them an get everything lined up good. There might have been a very slight bind in the beginning, but nothing to be concerned about. Once they were dialed in the worked great.
Pete
 
As long as you allow ample threading on the actuator rods, and the installer has access to a grinder or cutoff blade, they can be adjusted to suitable working alignment.
 
Hi Don your half right half wrong the mountain plates in the frame are in parallel to the frame ,unless you have a new andover frame they could be any where.
Your real problem lies in the fact that the the cross shaft for the gear selection is placed on an angle so that the shift lever comes out in a convenient spot on the
primary side ,your best off using left and right rose joints in stead of a clevis.
Muzz
 
yes Muzz, I checked some frames last night to confirm the plates were parallel or inline with the frame.
To compensate for the misaligned crossover shift shaft ( which at the time I wasnt sure what was out of wack) I put a 2-1/2 degree twist in the short
splined lever . that was for the last 30 sets of MK3 rearsets I made and I received no complaints.
I still want to check my latest rearsets.
Don
 
AHH!! much clearer now, I have another set of MK3 rearsets from another manufacturer and the "riser" on the shift lever which takes the clevis has a slight twist which makes the connecting rod face inward at the front, (its not parallel with the frame) same result as I had done by putting a twist
in the splined lever. with this sample and knowing that the crossover shaft is not at 90 degrees but more like 93 degrees I can make my alignment correct.
Learn something every day.
 
madass140 said:
then maybe my theory that the frame plates are not in line with the frame is not correct, maybe you are right and it is the cross shaft. so that would make the cross shaft facing forward on the left side? or looking down, instead of being 90 degrees it would be a bit more. is that how you see it?
Click to expand...


madass140 said:
AHH!! much clearer now, I have another set of MK3 rearsets from another manufacturer and the "riser" on the shift lever which takes the clevis has a slight twist which makes the connecting rod face inward at the front, (its not parallel with the frame) same result as I had done by putting a twist
in the splined lever. with this sample and knowing that the crossover shaft is not at 90 degrees but more like 93 degrees I can make my alignment correct.
Click to expand...

The cross-shaft [2] does angle Edit: forwards not backwards slightly as it passes from right to left, however, the shift lever does not attach to the cross-shaft but to another geared shaft [4] (which also reverses the shift pattern) 90 degrees to frame line Edit: correction it isn't).

https://andover-norton.co.uk/en/shop-dr ... e-sprocket
 
So L.A.B you are saying shafts 2 and 4 are not on the same plane? not parallel to each other?
 
ok, but it looks like the shaft would have to go forward to clear the tensioner
 
a picture tells a 1000....
not having shafts 2 and 4 on the same plane is good engineering!!!, must be special gear cutting.
 
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