Hose clamp on oil filter?

[LesP]

I just did a quick check on a UNI filter, for the filter rubber sealing ring to crush a little and the all of the threads in it (filter) to be used, the sump threaded spigot would need to be around 11 or 12 mm above the outer ring in the sump/pan)

I seem to remember it was around 7 mm stock so no wonder it is held on by a prayer.

[wirespokes]

Thanks, Les, for noticing. I'll definitely take a close look at the next filter change. Actually, I've got a spare oil pan so will take some measurements and decide where to go from there. Thinking seriously about having some longer fittings made up.

I see no reason the filter shouldn't be installed like any other car I've owned: thread on till contact, then another 3/4 turn. They never come loose, and being in the crankcase shouldn't make any difference as far as that's concerned.

Les, do you still use a hose clamp?

[Wayne Orwig]

Wayne - are you saying you don't use the hose clamp? That it's really not necessary?

Never used one. Never had a loose filter.
But I have a clamp on a shelf. Years ago when we went through this, I figured I would use one and got a clamp. I forgot to install it at the next filter change, and the one after that, and the one after that, etc. So there it is, on the shelf.

Make sure your low pressure light works, and investigate immediately if it comes one.

I once had a person ask me to repair his Guzzi. He changed the oil, and took off on an out of state trip. Before he got out of town, the oil light came on. He kept going on his trip. Didn't make it too far before it started making the loud noises. He found the oil filter loose.

[Wayne Orwig]

Thanks, Les, for noticing. I'll definitely take a close look at the next filter change. Actually, I've got a spare oil pan so will take some measurements and decide where to go from there. Thinking seriously about having some longer fittings made up.

I see no reason the filter shouldn't be installed like any other car I've owned: thread on till contact, then another 3/4 turn. They never come loose, and being in the crankcase shouldn't make any difference as far as that's concerned.

Les, do you still use a hose clamp?

I got the opinion about 15 years ago, that UFI had an issue with the rubber seal on there filters. You could even buy a replacement rubber seal if yours was one of the 'bad' ones. Whatever the bad ones were. Again, this is my opinion from what I was hearing, and the sudden problem with them coming loose.
It was kind of odd. A magazine cut open a lot of filters and found the UFI filters among the best out there. Then a few years later and people are complaining about them unscrewing.
I never had an issue, but I likely install them too tight.

[LesP]

Thanks, Les, for noticing. I'll definitely take a close look at the next filter change. Actually, I've got a spare oil pan so will take some measurements and decide where to go from there. Thinking seriously about having some longer fittings made up.

I see no reason the filter shouldn't be installed like any other car I've owned: thread on till contact, then another 3/4 turn. They never come loose, and being in the crankcase shouldn't make any difference as far as that's concerned.

Les, do you still use a hose clamp?

Yes, after that I still put a clamp on. 

I forget how many turns on it was modified (3 maybe on a 2 mm pitch thread for at least 6 mm engagement + rubber seal compression)  but a few plus the clamp head up against the pressure relief should do it, I probably won't be able to get it off.