Kickstart and shifter seals

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Coolhands

Coolhands

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Received a engine/ gearbox seal kit and was disappointed that it didn’t include o-rings or seals for the kickstart or shifter shafts.

Simple o-rings came out. I’m sure I can find something that will work, but this thing was leaking like crazy from both.

Suggestions?
 
There are lipped seals out there that can be substituted for the o-rings that perform much better and last longer. Check the Tech section or someone smarter than me (I know, a wide swath) can provide part numbers.

You might want to check the sealing surfaces of the shafts and polish off any imperfections for a good seal.
 
Go for the X ring alternatives, double the sealing.

Parts 5 and 40

andover-norton.co.uk

Andover Norton Parts Drawings - Genuine Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.
andover-norton.co.uk

You can work out the generic numbers by measurement.

O-Ring Size Chart : The O-Ring Store LLC, We make getting O-Rings easy!

The O-Ring Store LLC : O-Ring Size Chart - O-Ring Cord for Custom O-Rings OSK Assorted O-Ring Kits OSK™ O-Ring Repair Kits OSK™ Hydraulic Cylinder Seal Kits OSK™ Air Nailer O-Ring Kits OSK™ Sanitary & Brewery Gaskets O-Ring Lubrication Products Olypsys® Cell Phone O-Ring Measurement AS568...
www.theoringstore.com

and then going for the X ring

X-Rings: The Ultimate Seal of Quality and Durability! Buna-N, Viton® FKM, EPDM (aka Quad-Ring®)

X-Rings are available in Buna-N, FKM, EPDM or Custom Compounds (aka Quad-Ring®) X-Rings are better than O-Rings because they have a smaller cross-sectional area, which reduces friction and increases sealing efficiency.
www.theoringstore.com
 
I used those AN X rings but still put a suitable sized O-ring on the end of the shaft and between whatever is on the end of it whenever I can no matter the bike.
 
Coolhands said:
Received a engine/ gearbox seal kit and was disappointed that it didn’t include o-rings or seals for the kickstart or shifter shafts.

Simple o-rings came out. I’m sure I can find something that will work, but this thing was leaking like crazy from both.

Suggestions?
Click to expand...
Where did it come from and why not the AN set which includes everything including x-rings for those shafts.
 
Quick question…

Is any machining required for the x-rings or are these a direct swap in for the o-rings?
 
SEd27 said:
Quick question…

Is any machining required for the x-rings or are these a direct swap in for the o-rings?
Click to expand...
As long as you cross ref to the original O ring number then no machining is needed, go up in thickness and machining is required in both depth and width of slot.
 
I've tried the X rings and I was disappointed - they don't really last or work much better.

If you want a definite improvment that will last do the following:

Tranny kick shaft – use wooden shaft to force in a oversize 1/8x1-1/8 ID viton Oring.

Use oversize 3/32 x 11/16 ID viton O ring on the shift lever – force into place with a wooden shaft.

Oil tight and good for many years of service. No machining required (just a little patience working in the oversize Orings that fit tighter).

Shop at "the oring store" online.
 
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