Georges and others
The o-ring size is 029 and material is Buna Duro70 black,just let me know by email( at the end of this text) if you need more,I could send you some,Ray
Here is some information and tips on installation of the spacer.......
Here is something that need to be done before «anything»,deburring all sharp edge,mainly against the shoulder,and also at the spline where the sprocket often create some burrs.
Here is something taken from member Bowdoinmaine from the Shovelhead forum.
«The spacer comes with extra O rings and I managed to ruin a few because they are easily cut on the splines as you push the spacer in. But as with all things practice makes perfect. I found that dressing the sharp edges with an abrasive rubber wheel on my dremel let me install the spacer first try without O ring damage».
....Then use a very tight wrap of electrical tape over the thread.
Grease the wrap of electrical tape and also the inside the spacer.
Install the main seal over the spacer(grease also the inside of the main seal).
Then push the spacer with the main seal in a clockwise motion over the main gear.
Note.... try to push on spacer,do not hammer on it ,use a piece of plastic/abs pipe to hit the seal as you push the spacer inside.
The spacer with should slide right over the main gear and it will be a little tighter around 1/8 inch before the shoulder where the o-ring start to seal.
When installing both the seal and spacer together, I found that there is less change of ruining the main seal and o-ring in the spacer.
If you happen to slice an o-ring , «make sure you try the spacer without o-ring before installing another one»,using the spacer without an o-ring to make sure there is no burrs on the gear,it should slide right on without restrictions.
Here is some instruction to change the sliced o-ring
Install a small part of the o-ring into the groove(not at the bottom at the groove yet,but just inside the groove) ,then another part around 1/2 inch away around the circonference(clockwise or counter-clockwise it is up to you ) push the o-ring again in the groove but with slight pressure towards the very first position of the o-ring that where is was installed in the groove, than ½ inch again push the o-ring inside again with slight presure to the first position , then again,then again,till you have made a complete turn,you will end up with o-ring all around but with some part of it not in the groove.
You will have a few spots that the o-ring will not be in the groove(like a «star» pattern looking inside the spacer),try pushing those parts a little at a time with your finger in a rotational movement,you will have one very last spot at the end that will be slightly off,that part will finally dissapear in the groove,just slide over it with your finger in a clockwise or counter clockwise motion a few time.
Then use a broom or a file handle to make sure it is position correctly at the bottom of the groove,just make a complete turn with your finger ,you should not feel any difference at all,and that is all around
the inside,if you feel something different then make a couple of turn with the
handle again,it should now be fine,lubricate with grease when
Most of the time when peoples are having a hard time installing the spacer,it is due by lack of preparation,this is why I send you couple of extras o-rings in case,please take the time to do it one step at a time,that way you should expect excellent results.
Hope this help,anything else please just ask,