spin on oil filter

I don't know Glen, I thought that all the spin on did that. On the NOS motor I put in my Jeep I drilled and tapped in to the oil pump, and blocked the hole in the gasket, and drilled into the block, ran a line to an fender mount filter and back to the block so all the oil got filtered. The upside down filter is on my old motor that I made Garage Art out of.

 

"Filters mounted such that oil tends to drain from them usually incorporate an anti-drainback valve to hold oil in the filter after the engine (or other lubrication system) is shut down."
https://en.wikipedia.org/wiki/Oil_filter

 

NAPA # 1050 short or #1704 long
Hastings # LF117 or LF198
Fram #PB50

Walcks sells the spin on adapter http://walcks4wd.com/oil-filter-base-spin-on-style.html

I am converting my 134L flat head to use this type of filter as opposed to the canister.

 

Glen, in the picture of the 51050 oil filter picture you can see the small holes on the oil in, that I think is what keeps the oil pressure up by restricting how much oil can go into the filter.

 

Why?
Interesting, since some carmakers are moving back to cannisters.

 

Glen, you may want to go back and take another look at the link you posted. It certainly does show a anti- drainback valve although their disclaimer may prove you correct.

 

I am Hot Rodding my engine and the spin on filter will lend itself towards that styling better then a Big clunky canister.

I do not know about interchanging with the Wix filter The numbers I gave are OEM application replacement filters for a Mid to late 1960's 134F equipped with the spin on filter.

As to the filter being a drain back style or not that is not as I understand this type of oiling system the important part. What is is that the filter is a by pass filter which means if the filter becomes plugged the oil can bypass it on its way to the return in the timing cover. A full flow filter is it becomes blocked will stop the flow of oil through the line. Or so I have been told.

If you don't want the filter to drain back just turn it right side up and the oil will pool in the cup rather then drain out. Kaiser that made this upgrade to the original style filter decided the filter should drain back into the pan possibly to make sure the oil level in the pan was high enough on start up or for some other reason I can not assume.

In any case I plan on setting my engine up with on mounted in the area the fuel pump would have taken had I not decided to run a Holley Blue electric fuel pump. I plan on working out a mount that mounts to the front engine plate. I'm waiting to design it until after I have the Header exhaust finished in case I need more room.

My engine so far

 

This is just my $.02, from what I see here that everyone is missing, the oil comes up from the oil pump in the middle of the gallery, and goes both ways to oil the crank and rods. The oil line comes off the end of the gallery, after all the crank and rod bearings are oiled. It goes to the filter, and then drains into the timing cover and on the timing gears. On the other end of the gallery is the oil line that feeds the overhead rockers. Howard pointed out that the bearings, if in good shape, take very little of the and most of the oil goes through the filter anyway. So to me it seems that the filter draining down while setting has little or no effect on the rest of the motor.
Mark that is a beautiful engine you are building nice job.

 

The stock system depends upon back-pressure at the filter cannister (by calibrated restriction of the outflow orifice) to create pressure at the bearings. If the filter was empty, it would seem to me that the bearings would be starved until the filter refilled.

Even in a 'normal' engine, some people think the majority of engine wear happens in those first few seconds before oil pressure builds at each start-up. For comparison and contrast, I've seen high-end accessory electric pumps that pre-pressurize engine oil before starting.

 

I don't know anything, I am just guessing, there are lot of Jeeps running around with this set up though, so it must work. My gauge shows oil pressure soon as it starts up. Like I said I took it off the NOS 1952 military motor I put in my Jeep when I restored it, and run a line from the oil pump to a fender mount and back to the block so all the oil goes through the filter.

 

I've removed several of the factory canister filters over the years, from parts JEEPs. Most had been sitting for years........some for many years. They all still had plenty of oil in the cannister when removed. So, if the question is, does the oil drain out of the canister when the engine is turned off, I have to say that it does not. Maybe I'm misunderstanding the conversation/question though.