1967 Oil filter cannister - Repairable?

[Carl R.]

Hi yall!

After changing my oil Saturday I noticed a new drip from the center bolt of the oil filter cannister (327/300). Over the past 10 years (or so) this has leaked very slightly but seems now to be significantly increased.

Now, before I try, can I diassemble & rebuild this cannister? Is there a bolt-to-cannister gasket under the filter spring device I can replace/fabricate? Failing this, does anyone rebuild these? Am I better off with a new reproduction unit? I cannot quite bring myself to convert to the spin-on filter.

I feel an impendingly messy job coming on...

Thanks!

Carl

[Joe L.]

Re: 1967 Oil filter cannister - Repairable?

Carl-----

My vague recollection is that there is a black rubber gasket under the center bolt for the cannister. Unfortunately, I can find no reference to such a gasket in any of the references that I have available to me at the moment, so maybe I'm wrong. However, there is no seal which is integral with the cannister so there almost has to be some sort of gasket used under the bolt.

[Bill Lucia]

Re: 1967 Oil filter cannister - Repairable?

Carl & Joe, I have same problem with my 66 (427-390). It just started leaking more over the last couple of months. It appears to have a washer between the bolt head and the body of the canister. The washer looks like copper (like a spark plug gasket). I have not tried to change it but I will have to do so soon.

Regrads

Bill #8620

[Bill Clupper]

Re: 1967 Oil filter cannister - Repairable?

There is an oddly shaped rubber seal that goes between the spring loaded plug at the bottom of the can and it's shaft, but I believe the likely source of a leak would be between the bolt and the can itself. i beleive a copper flatwasher was used there to provide some crush and htese will rear out. I expect a bearing distributor should be able to locate a suitable replacement for this.

[Carl R.]

Re: 1967 Oil filter cannister - Repairable?

Thanks for everyone's input. Now has anyone ever tried to actually disassemble one of these? Are there snap-rings, etc. to contend with?

Carl

[Doug Flaten]

Re: 1967 Oil filter cannister - Repairable?

I just replaced mine with a Viton gasket that I cut with a hole punch set. My Panhead had a similar canister filter and it would always leak. Neoprene gaskets got cooked. Viton is tolerant of oils and temps up to 400 degrees. I did not have any more leaks when I did cut the gasket for the bike. I cut a gasket for the Vette about 1 month ago and have not noticed any problems yet. Viton isn't cheap, but 1sq ft would give you a lifetime supply of material.

[Joe L.]

Re: 1967 Oil filter cannister - Repairable?

Doug-----

I agree. Viton is a material of choice for me, too. I once paid nearly $100 for a water pump seal that had a Viton bellows as opposed to the neoprene or Buna-N rubber bellows that most automotive water pump seals are made of. Unknown to most folks, the temperature resistance "margin of safety" with neoprene or Buna-N is very small considering the temperature that engines operate at. With Viton, the "margin of safety" is great.

Of course, the $100 water pump seal was not an automotive piece. It was strictly designed and sold for aerospace applications. And, it took me quite a few hours of digging through supplier catalogs to find the size and configuration I needed.

[Bill Clupper]

Re: 1967 Oil filter cannister - Repairable?

To answer the question more directly, the bolt is held in place by the cone shaped piece that fit's into the bottom of the filter being staked into the side of the bolt. A whack with a hammer through a piece of wood onto the threaded end of the bolt will break the stake and let you disassemble the cannister. you do not need to re-stake it during reassembly, It is just slightly more difficult to start the threads that way.