Replacement cylinder oil drain hose?

[TCONROY]

My 5 year old IO-360-M1B has some oil weeping from the black rubber oil drain hose under the cylinders. I've tightened the hose clamps a little but it didn't seem to help and the hose still rotates freely, likely causing the leak. Should I just buy new hose or is there an aftermarket replacement that folks have found works better/lasts longer?

[Ironflight]

The problem with those things is that the clamps don’t do a good job of putting even pressure all the way around - the shape of the worm screw and the small diameter of the hose means there are spots that really don't get any tension at all. Many of us are using Automotive full-circumference clamps there and having good results. The hoses are cheap to replace, and I’d do that if I were trying new clamps.

Paul

[flysrv10]

The right clamp is the "constant Compression" clamp available on Amazon. Mine has not leaked since I put them on and it has been a few years.

[JDeanda]

Do you guys mean the constant pressure clamps that you install and remove with pliers, like the ones I see on automobiles? About a buck each, right? Like these? https://www.amazon.com/Hillman-59736...5111048&sr=8-7

[Ironflight]

Originally Posted by JDeanda

Do you guys mean the constant pressure clamps that you install and remove with pliers, like the ones I see on automobiles? About a buck each, right? Like these? https://www.amazon.com/Hillman-59736...5111048&sr=8-7

Yes, those are the right type - just make sure you get the right size ( measure the hose to be sure).

[TCONROY]

Great, thanks so much guys! I'll get some new hose ordered from Spruce (or is the stuff from NAPA acceptable?) and those constant compression clamps.

[hgerhardt]

This subject comes up fairly often here: https://vansairforce.com/community/s...99&postcount=3

[flysrv10]

Originally Posted by JDeanda

Do you guys mean the constant pressure clamps that you install and remove with pliers, like the ones I see on automobiles? About a buck each, right? Like these? https://www.amazon.com/Hillman-59736...5111048&sr=8-7

This is what I have. These are the right size. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[BlndRvtr]

What is the best tool for installation of these clamps?

George

[flysrv10]

You will need a long 90 deg needle nose plier to reach the clamps at the engine. Install the hoses on the alum tube, insert on the engine fitting and then use the the plier. In couple of places it is pain but you will only need to do it once. Keep cursing and keep pushing to get it done. That is my method when something is a pain and it seems to work well.