Mod to primary tensioner

[muskrat]

G'day all,
            as I had the clutch out to rid it of the petrol that filled the crankcase and primary (left the fuel tap on) I did the usual check on things. The tensioner was getting 1mm gouges from chain wear and the chain plates were wearing as well.
 I thought as modern bikes have nylon chain guides why not ours. I cut a strip off a nylon cutting board and attached it with 4 countersunk screws. The tensioner is very hard steel so had to use a masonry bit to drill it.
 Will check it's wear at next oil change and report back.
 Bugga, just looked at pics, forgot to lockwire the nuts. Back to the shed!
Cheers

[bsa-bill]

Steady on Muskrat, your shaming us here - a degree wheel incorporated, I'm impressed

[muskrat]

She's got Boyer so strobe to time. 5 degree markings.
Still trying to make everything go faster 
Cheers

[chaterlea25]

Hi Muskrat,
Nice mod 
Be prepared for some nylon shavings in the primary until the  chain side plates cut their own grooves
and the rollers will then run on the nylon
I dont know how Mrs M will react when she finds a lump gone from the chopping board

Like the degree wheel

Regards
John O R

[rocket man]

nice mod muskrat  hide the rolling-pin  

[wilko]

Pity they didn't incorporate this system onto the swingingarm models.

[terryk]

I have a heap of worn chain adjusters so I will be interested how it goes Muskrat. I have thought of getting some of them metal spayed and build up has anyone done this before ?

[shabashow]

Looks a great idea as new ones are imposible to find. It also gives you a bit more adjustment. Mine's screwed all the way in, and there still a wee bit more play in the chain than I'd like. Suppose the real solution would be to get a new chain, but I've been holding off as the adjuster has groves perfectly aligned with the existing old chain.
I'd also need new sprockets, and as the clutch housing is integral with the large sprocket, and is also as rare as hen's teeth, that was a major hold up.
We'll watch this developmant with interest.

[a10 gf]

Great mods  , thanks for the ideas.

[trevinoz]

Terry,
             If you go that way you will probably have to get them hard chromed as they appear to be originally.
Another solution may be a neoprene strip glued to the face if you can find a suitable adhesive.
I reckon the nylon or neoprene would result in a bit of a reduction in noise.

  Trev.

[muskrat]

Your right Trev, I can nearly hear myself think now (not that I do much of that while riding). First test ride very pleasing.
I thought about adhesive but was worried what would happen if it came off  . Drilling hard steel is easy with a carbide masonry bit sharpened like a normal drill bit. Lots of RED loctite on the nuts plus a center punch for good measure.
Cheers

[terryk]

Keep us posted Muskrat how it goes mate. You might be the forerunner of a new mod we will all have to do. Trend setter.

[a10 gf]

How did it go ?

[muskrat]

G'day e,
           Might get around to inspect this week. I think it's done about 600 miles. Been busy with a new project '64 A65.
Cheers.

[tombeau]

steady onMuskrat. That could constitute crossing over to the dark side