There have been previous posts on this. The opinion of this poetry-reading idiot is to NOT discard the circlip. Turn up your own holder out of alloy and use a seal 1.5"x 2.062" x.312" similar to G24, but double-lipped if you can get one. Make a paper gasket. I think "Richardson", page 62 will help. Most folks lockwire the three setscrews here. You need the modified sprocket spacer with a ground outer track for the seal to run on.
E: Engine Comet Mongrel
- Thread starter Cyborg
- Start date
I knew that there are previous post on this, because I read them a while back. I did a search today, but after a few tries, I gave up. I seem to be a little challenged when it comes to searching for things... (I didn't think to look in the Richardson book). I don't "need" to remove the lip or should I say hair lip as it is damaged, but figured it would do a neater job... not that you can see it either way.
Do yourself a favour Ken and specify a VITON rubber seal - it will then outlast the life of the bike!
You either have a circlip or the holder not both the seal comes with the VOCSC kit and you need three screws (countersunk) there is plenty of depth- if it wasen't so cold I would pop in the garage and look at the invoice I only fitted mine last week to the 2020 I will tomorrow
I picked a seal that fit and made the housing for it just as Chankly suggested. Just bolted it on as I remember, but I am foggy on the seal and housing. I made my own inner primary plate and maybe that is why I did not have to machine anything. I don't specifically remember why I used four holes, but it does not look like too many.
The hardened spacer for the Comet is E216. That is the rough one that is not for use with a seal. E216/1 is the ground spacer for use with the seal.
I think I continued using the seal, but I went to a sealed bearing on the primary: MS-10-2RS. This is sealed inside and out. The bearing house convinced me to run it as is with both seals. It has been running every season for 8, which I think of as success.
After I installed the front sprocket and mounted the belt, I had to pull it apart and put a shim against E216/1 so the sprocket moved out a hair. The belt need a bit of centering on the clutch.
Of course, the Newby fits inside the Comet primary also. The lock wire is not a bad idea. That is 1/4" plate used for the inner primary. The foot rest and transmission plates are 3/8".
David
The hardened spacer for the Comet is E216. That is the rough one that is not for use with a seal. E216/1 is the ground spacer for use with the seal.
I think I continued using the seal, but I went to a sealed bearing on the primary: MS-10-2RS. This is sealed inside and out. The bearing house convinced me to run it as is with both seals. It has been running every season for 8, which I think of as success.
After I installed the front sprocket and mounted the belt, I had to pull it apart and put a shim against E216/1 so the sprocket moved out a hair. The belt need a bit of centering on the clutch.
Of course, the Newby fits inside the Comet primary also. The lock wire is not a bad idea. That is 1/4" plate used for the inner primary. The foot rest and transmission plates are 3/8".
David
I thought I read somewhere that the one sold by VOC spares did not seat against the outer bearing (with the clip removed). Am I imagining things?
I want to make my own seal retainer just for sport. I seem to be buying too many things that I should be making myself. I desperately need the practice.
Thanks for posting those pictures David. I ordered up some 1/2" plate to use between the the engine/gearbox/frame. Maybe a bit on the thick side, but I can always mill some of it away.
I don't know what I'm going to use for a primary cover. I'm trying to recover from a 2 yr long restoration on the B twin and want to give myself some artistic licence. Not quite what you might call cake decorating, but not necessarily following the rule of form follows function.... although I have to say what you have there looks awfully nice.
Speaking of nice...Do those Newby clutches work as good as they look? When I opened the box today, I was pleasantly surprised.
I don't know what I'm going to use for a primary cover. I'm trying to recover from a 2 yr long restoration on the B twin and want to give myself some artistic licence. Not quite what you might call cake decorating, but not necessarily following the rule of form follows function.... although I have to say what you have there looks awfully nice.
Speaking of nice...Do those Newby clutches work as good as they look? When I opened the box today, I was pleasantly surprised.
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The Newby clutch works fine, fairly sensitive to correct free play on the belt, and once set up doesn't need touching. A bit more of a "light switch" feel about it, but nothing you can't get used to.
I figured the 2 Phils put the circlip in there for a reason so I left it in place when I fitted the seal to my Comet - Yes you CAN have both!
See OVR #16 from May 2015 on how to do it - its available in the OVR Archive that you can reach via this link
www.ovr270.wixsite.com/ozvincentreview
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