Swinging Arm Hitting Oil Filter...

olympus said:

2. Take it this kit can be fitted onto a 72 pre Mk3

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The spin-on filter kit was introduced in (mid) '72 therefore it should fit.

olympus said:

3. Is a shallower filter option available

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Not that I know of, because the one you have should fit although there's not much space between the swinging arm and the filter with the suspension fully extended, or filter and centre stand spring with the stand raised.

3. Is a shallower filter option available

What is the height of the filter canister that you have?

Just enlarge the bottom hole a bit to let the filter pivot down a little. Don't overthink it...

Esmerela said:

3. Is a shallower filter option available

What is the height of the filter canister that you have?

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I'll get the filter dimensions in the morning

milfordite said:

Just enlarge the bottom hole a bit to let the filter pivot down a little. Don't overthink it...

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I had the same issue and did as milfordite suggested. I was also thinking about asking my friendly local NAPA to see if there was a filter that would make a good seal and be a bit smaller in diameter (I installed the filter adapter I used to sell), but haven't gotten that far (yet).

You may also find that a different filter mount may give you the clearance, but enlarging one or both holes in the cradle, now that they are there, is the best solution, short of finding a filter with a smaller OD.

I also had a concern about the possible torque effect that the hose clamp might be imposing. I used the search function on this forum and read pros and cons about removing the sheet metal anchor and hose clamp and found a pretty even split. What sold me on removing the anchor/clamp was when a member pointed out that no other motorcycle, in his experience, used the restraint.

I do check the filter before and after a ride, but haven't found any reason to remount the clamp/anchor.

Best

WIPAC NO.CA111 = 3.37"
CROSLAND NO. 673 = 3.11"
ANDOVER NORT NO. 06.3371 = 2.92"
All measured from rubber seal to top.
These all are direct fitment to original oil filter housing (no thread adapter)
Cheers,
Thomas

olympus said:

I suppose there are occasions like this when accuracy just isn't necessary

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Or even that it is counterproductive !

Are your shocks longer than stock? Been there, done that.

I also went by the template about 45 yrs ago when the 850s came out. Had to do some hogging out of the holes also. I thought it was just my error in drilling but evidently the template is wrong. Just enough room for the clamp. The shocks I've had on there have all been stock length - Koni and now NJB.

The clamp is there because the filter is right in front of the back wheel.

I also believe that the Keglar clamps i have fitted along with the hose protection make the situation worse as the thickness of then does significantly reduce the amount manoeuvring room

FWIW, I added the filter kit to my '71 using the template and probably have 3mm to spare between filter and swingarm with Hagons. Maybe the older filters were just slightly smaller in diameter.