Poor fitting Frustrations!

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kingdaddyo

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May 20, 2011
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Had to bitch today. I bought a "new" stainless chain guard several years back when accumulating the parts to restore the Commando. I can't remember where I bought it from. The damn thing doesn't even come close to fitting correctly and I can't figure it it is the guard, or if the swing arm is from an 850. Any ideas?
I am in the final stages of assembly and it is STILL one step forward, two steps back.
 
Hey there kingdaddyo, not sure what your chain guard and swing arm look like but i went out to the garage and took this picture of my 850 swing arm and beat up old chain guard, hope it helps. Cj
 
oops, here's the photo. I should have previewed the last post before submitting. Anyway, it's kind of hard to see but there is the front mounting lug with bolt loosely replaced in it on the front of the swing arm and the rear mounting bolt is the lower shock bolt head that the bracket on the backside of the chain guard slips into (not visible).
Poor fitting Frustrations!
 
cjandme said:
oops, here's the photo. I should have previewed the last post before submitting. Anyway, it's kind of hard to see but there is the front mounting lug with bolt loosely replaced in it on the front of the swing arm and the rear mounting bolt is the lower shock bolt head that the bracket on the backside of the chain guard slips into (not visible).
Poor fitting Frustrations!
Click to expand...


Thanks for the picture. Does anybody on the forum know if the swing arms are different for a 750 to an 850?
 
kingdaddyo said:
I bought a "new" stainless chain guard several years back when accumulating the parts to restore the Commando. I can't remember where I bought it from. The damn thing doesn't even come close to fitting correctly and I can't figure it it is the guard, or if the swing arm is from an 850. Any ideas?
Click to expand...

Unless you can give us some rather more detailed information why it won't fit, or upload some photos then we are left none the wiser.
As it's stainless then it's probably not a genuine AN part. 750 or 850 shouldn't make any difference.
 
As that chromed guard looks extremely easy to make using a couple of pieces of wood and a bench vice, then why not get some 2mm aluminium sheet and make a guard that fits properly?
 
I've put on an 850 boxed swingarm on two Combats and was able to use the 750 chain guards just fine. I could not ever bring myself to pay for a new chrome or SS guard so beat mine back from chain injuries and just paint it, again now and then.
 
Carbonfibre said:
As that chromed guard looks extremely easy to make using a couple of pieces of wood and a bench vice, then why not get some 2mm aluminium sheet and make a guard that fits properly?
Click to expand...

Possibly that could be done although there is a mounting clip that would have to be fabricated and welded on. Also not sure how long it would last due to the vibration.

The CNW chainguard looks nice and fits perfectly, no fabrication or welding required! It comes in bare steel though, so you have to paint it or get it chromed.
 
Carbonfibre said:
As that chromed guard looks extremely easy to make using a couple of pieces of wood and a bench vice, then why not get some 2mm aluminium sheet and make a guard that fits properly?
Click to expand...

Why don't you make one and let us know how easy it really was.
 
Probably a very exotic idea, but I took one from our (Andover Norton) stock and just put it on my Signal Orange Roadster. No welding, fabrication or chromium plating required. Part#06-1865.
Joe S.
 
750 and 850 swingarms are slightly different, the 850 ones are boxed in with reinforcing.
Your chainguard, which looks like the stainless 850 Mk1 or mk2 type, looks correct.

Where doesn't it fit ?
 
Rohan said:
750 and 850 swingarms are slightly different, the 850 ones are boxed in with reinforcing.
Click to expand...

However, that doesn't affect the fit of the chainguard.


Rohan said:
Your chainguard, which looks like the stainless 850 Mk1 or mk2 type, looks correct.
Click to expand...

Which "stainless" chainguard can you see that I (we?) can't? All I can see are photos of cjandme's (apparently slightly rusty chrome) chainguard?

The 064837 chainguard with the two holes for the extension piece was fitted from serial 307091 according to Norton Service Release N3/55, although it isn't listed until the 850 Mk3 model on the AN website which appears to be incorrect as the chainguard with extension can be clearly seen in the '74 brochure and other period photos and 064837 is listed in the Mk2/2A parts supplement. The 2/2A supplement also lists an additional 065818 "Chainguard (Jan. 74-MK2 & MK2A)", and oddly enough 065818 does show up in the AN parts search as "Generic part Chainguard late Mk2" so what was the difference, Joe (ZFD)? Could either chainguard type have been stainless originally?
 
Hmmmm, an examination reveals such chainguards may indeed be chromed.
Might investigate a bit further.
I thought a damaged one removed was stainless, still lurking somewhere.

Earlier Commandos had a curved end chainguard, could that be involved in the problem here ?
When did those stop.
 
I confess! I don't have 06-5818 in my German stores. It was recently added to our product range in Hungerford, but as I have never been asked for one I did not order one, so can't tell you what the difference between that one and 06-4837 is. 06-4837 was drawn in April 1973, 06-5818 in November. It gives a material code I can do nothing with (being a layman in that respect), and only says "oil for storage". I doubt this chainguard was made in stainless, though, as all others weren't.

As for fitting any chainguard to any Commando swinging arm, as far as I am aware they are all interchangeable. The early models for the curved (06-0456 resp.06-1272) chainguards should take the later ones- the mounting points are identical.

Talking of chainguards, we will shortly have 06-1272 again. I don't think Andover Norton ever offered these before (1969/70 models). Then we will have 03-4033 for P11 (just introduced), 06-0456 for early Commandos, 06-1272 for some 1969/70 models, 06-1865 (1971-on) without and 06-4837 & 06-5818 (1973/74-on) for extension.

Joe Seifert
 
Rohan said:
Earlier Commandos had a curved end chainguard, could that be involved in the problem here ?
When did those stop.
Click to expand...

The N3/55 Service Release (May '73) also states that:

3.Stocks of the previous chrome plated rear chainguard 061272 with the rounded tail end are still available and can be obtained through the normal parts outlets.
Click to expand...
 
There was a good man of old. His bike sat around growing mold. No year and numbers made his pals fumblers. Chainguards and swingarms of mystery years? Soon his pals were to headscratchin' n' tears.
 
ZFD said:
I confess! I don't have 06-5818 in my German stores. It was recently added to our product range in Hungerford, but as I have never been asked for one I did not order one, so can't tell you what the difference between that one and 06-4837 is. 06-4837 was drawn in April 1973, 06-5818 in November. It gives a material code I can do nothing with (being a layman in that respect), and only says "oil for storage". I doubt this chainguard was made in stainless, though, as all others weren't.
Click to expand...

I trust you will be able to find out what the difference is and let us know?
 
Wasn't there some change to the chainguards with respect to that little plastic end piece ?

And the oil breather from the oil tank onto that y-shaped chain oiler changed about too, didn't it ?
 
Rohan said:
Wasn't there some change to the chainguards with respect to that little plastic end piece ?
Click to expand...

Do you mean when it was added, or some time after-as the part numbers for the extension piece, spring and buttons do not appear to change between those listed in the N3/55 Service Release and the 850 Mk3 parts list. What is slightly odd, is that those extension parts are not listed in the 2/2A parts supplement.

Rohan said:
And the oil breather from the oil tank onto that y-shaped chain oiler changed about too, didn't it ?
Click to expand...

The chain oiler part numbers remain the same.
 
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