Oil Leak, Primary Side.

[RichardL]

Bill,

My level screw is the first behind the 5/16ths screws and the third is the drain. There's a hole in the top of the thread bump for the level screw in the outer cover and a cutaway in the drain bump (there must be a better word than "bump"). There happens to be a picture of my inner primary, here: http://www.a7a10.net/forum/index.php?topic=368.msg58817#msg58817 ) Not sure what this might have to do with the shoulders inside those screw recesses.

Richard L.

EDITED

[bsa-bill]

Not sure what this might have to do with the shoulders inside those screw recesses.

Nothing would be the short answer Richard.
I did have a similar problem with an inner that was wrong for the bike (bike was a 59 - not sure when they changed to the combined level drain plug)
anyway I just popped an O ring over the screw until I got a later type inner

[trevinoz]

The fibre washers are available from Burtons, I think. I got some last year.
They are about 3/8" o.d. and .085" thick.

[duTch]

 I remembered that I ordered some of the correct fibre washers from DragAnfly a few years ago part# 67-1709, but they sent me wrong ones...
 Yo Bill I was assuming it was the early Swing arm type, same as Plunger and maybe Longstroke..?

  Richard, I went ahead and cut the 'O' ring grooves in level and drain screws (took about two minutes), then remembered why I didn't bother to do it before- is because the drain screw doesn't sit deep enough in the hole so I hand countersunk it, will do it properly and a bit deeper to accommodate an 'O' ring, on a drill press next time the cover is off.
   The level screw well is ok, so should suit so long as the counterbore is smooth enough (mine has not apparently been leaking, but did it anyway and left the fibre washer in there)

 Pasted a pic of the inside of the spare (Plunger type) cover- would've been a good one except for a few battle wounds. Funny thing is, it only has a cutaway for the level , not the drain- that must be on the inner....never noticed...?

[bikerbob]

As regards oil levels I have found that the best way is to ignore the level screw and measure out the correct amount of oil as per the workshop manual and pour it in, as if the bike is not perfectly level then you can overfill or underfill. I use the same procedure for the gearbox.

[nimrod650]

 same as biker put in correct amount as per manual

[bsady]

I made a dipstick to set the level. through the filler cap vertical, when the oil was the correct level buy the cover screw I dipped it, marked it and now just fill to the level without the worry of a leak every time I check it.

[Black Sheep]

I kick the bike over with my finger touching the underside of the chain through the filler hole. When I get oil on my finger, there's enough in. Best press the mag cutout when doing this.

[RoyC]

I kick the bike over with my finger touching the underside of the chain through the filler hole. When I get oil on my finger, there's enough in. Best press the mag cutout when doing this.

How can you tell if the oil is from the oil bath and not from you pouring it over the chain when filling ?

[duTch]

 I gave up on all that and figured it's easier to shine some sunshine (from my 'sunshine storage box', or reflected from a mirror), or failing that, a artificial light source straght down into the casing so I can see it and add as necessary roughly to the level. Ffs as long as there's some in there that can be seen, it'll do the job- it leaks out anyway so just check it occasionally