Suzuki oil filter

[bigdude2468]

I changed the oil in my DF 115 yesterday after the boat sat all winter. Drained the crankcase and when I took the filter off their was no oil, zero in the filter. Do Suzuki filters not have an anti drain back valve?

[artdf175]

Who winterized your engine?
My guess would be the last thing that was done was the oil change and new filter and put away hence no oil
Engines should not be stored with old oil all winter so your comment about changing it now seems out of context

[bigdude2468]

I winterized the engine last fall, only had nine hours on the oil / filter for the season so I was going to let it go. So I changed my mind, did the oil change and as stated no oil in the filter, assume it had drained back into the crankcase. Did not measure exactly but the oil drained was more than five quarts so level was right. My question remains, do the Suzuki OEM filters have an anti drain back valve?

[catacom225]

Oil filter

No they do not, and for the reason there was no oil in the filter i have no idea. Maybe you had it tilted up high and laying on its side and gravity did the rest

[Moonlighter]

Or, after you did the oil change, you didnt start the engine before winterising?

[bigdude2468]

The engine never came off the boat, it gets tilted up when trailering but that is no reason for the oil to drain out of the filter. It spends the winter essentially vertical with the skag barely above the floor in the garage. It sounds like no anti drain back so each time you start the engine the oil filter has to fill before reaching full oil pressure. If that is the case it's a bad design.

[ChrigelKarrer]

If that is the case it's a bad design.

Why is it a bad design?
Because it takes a (fraction of a) second more to pump the oil from the oil pump thru the filter and up to the lubrification points?
I think that all/a lot 4 stroke outboards don't have anti drain valves as if so, changing the oil filter would make a big mess.

Chris

[bigdude2468]

Every oil filter in automotive use has a anti drain back valve. I guess they believe not having to fill the filter each and every time your crank the engine is worth it. Removing the horizontal filter from a Suzuki DF 115 is no less a mess than when I change the oil on my vehicles that are mounted vertically. When I remove those filters they run all over. At least on an outboard you are standing next to the engine with a rag, pan in hand instead of laying on your back under a 4000 lb vehicle.

[catacom225]

oil filter

Hey Bigdude
You wouldn't by any chance have a diagram or photo of one of those filters with an anti drain valves

[bigdude2468]

ADBV.jpg


Here is a photo of an ADBV (anti drain back valve) from a Motorcraft filter. This design with a nitrile rubber valve is very common. I do not recall who makes Ford Motorcraft filters but there are other ADBV designs. Google "Bob is the oil guy" and there is a forum just on oil filters. Many photos of various brands of filters being cut open and inspected and you can see the different designs.

[bigdude2468]

Here is what Fram has on their website concerning the new Fram Ultra oil filter.


"Silicone anti-drainback valve holds a reserve of oil in the filter to help protect the engine during start-ups"

[Harper]

I think it has an anti-drain back valve. I can guarantee you that NO oil filter will hold oil in the canister for months at a time. It will eventually drain down.

[Auburn02]

All this talk about valves and such, regardless of whether it was changed in winter or summer or spring or fall, isn't the first step always to run the engine a bit to warm up the oil to ease draining?

[Moonlighter]

All this talk about valves and such, regardless of whether it was changed in winter or summer or spring or fall, isn't the first step always to run the engine a bit to warm up the oil to ease draining?

You nailed it!

As indeed, is running the engine for a while after doing the oil change to check for leaks and to get the new oil circulating through the engine and to fill the filter.

After which, and allowing it to settle for a few minutes, another oil level check to make sure you got the right amount in there.

[bigdude2468]

Normally draining warm oil is the way I do it. I was not going to not change it due to it having so few hours on it. The boat is at a cottage on a boat lift so once its in the water I would need to take it back out to do an oil change. No desire to do it while the boat is on the lift, I would just about guarantee that something gets dropped in the water. With so few hours on the oil I did not see the need to warm it up to suspend contaminates when I knew that the oil was almost new. I did make the change from regular oil to synthetic which is why I did it. As far as putting oil in the filter before installation the filter sits horizontal so it is somewhat problematic.

Guys, it was just a question asking if the oem Suzuki filter does or does not have an ADBV. Next oil change I will cut the filter open and look for myself.