90 degree oil filter adapter

[RavenTai]

So in looking at your picture above, the oil forced out of the filter by air upon cranking will certainly wind up on the nozzles and resultingly the pistons before any other oil in the system.

only if the oil pan is empty will the oil pump pump air, the nozzles require a certain pressure to open so the oil did not coem out of the nozzles, it liekly came out everywhere else but

So the prior contention that the filter is designed to pre-oil the system upon start up could be viable.

not quite, had the statement been that oil comes out of the filter after start then yes but the statemnt was that the upside down position of the oil filter prelubes the engine with has not been proven here. the pump moves oil through the filter no matter what position it is in.

 

[elmariachi]

The way I see it, when you kill the engine, there is oil left in the filter. Even if the oil behind the filter (input) drains back down, leaving air in the passage ways, as soon as you start cranking, either that air, or oil as the case may be, is going to press the filter to discharge its contents. I am not sure how to prove this, but I believe that if we could see what happens inside the filter, as soon as you start cranking, that filter pukes, no matter whether there's oil feeding it or air. Why else would the filter have been engineered to sit how and where it does...and why does Toyota and TRD make claims that their filters with ADBVs afford this feature.

 

[Slomo]

Originally posted by RavenTai
PI x r x r


where
PI is 3.1415
r= the radius of the hole squared

gets you the area of any circle, the truns and bends do make a diffrence but the area of the holes is the biggest restriction to flow.

I was trying to get info on the diameter of the holes earlier,

But as has been proved by other the 1FZ does not last long with a reduction of oil flow, the oil analysis is actually a decent indicator,

Thanks. I always forget the rules for geometry. Took me two times to get through and hardly any of it stuck.

The oil analysis did look pretty good (to a rookie), would you go so far as to say the adaptor would not cause an apreciable decrease in the flow of oil through the filter or would more investigation be in order?

 

[RavenTai]

If someone can get one in hand and measure it would be good to look into the diameters of all the holes, if the total area of each set of holes is the same size or larger as the ports in the block (by eye about half inch dia?) I would say it will be fine.

 

[Slomo]

Originally posted by elmariachi
The way I see it, when you kill the engine, there is oil left in the filter. Even if the oil behind the filter (input) drains back down, leaving air in the passage ways, as soon as you start cranking, either that air, or oil as the case may be, is going to press the filter to discharge its contents. I am not sure how to prove this, but I believe that if we could see what happens inside the filter, as soon as you start cranking, that filter pukes, no matter whether there's oil feeding it or air. Why else would the filter have been engineered to sit how and where it does...and why does Toyota and TRD make claims that their filters with ADBVs afford this feature.

I would tend to agree with you but I have noticed a difference in the amount of oil that spills out of the filter during a change. In the past with the 1FZ and my 22RE with OEM filters I get less oil coming out when I let it sit overnight vs sit for an hour or so. Both filters were equipped with an ADBV yet they still let some of the oil drain back. After an hour all the oil behind the filter should be long drained yet overnight even more drains out. I have yet to figure out this phenomina. If we just had a plexiglass bodied but otherwise OEM filter we could answer all these questions.

 

[Slomo]

Originally posted by RavenTai
If someone can get one in hand and measure it would be good to look into the diameters of all the holes, if the total area of each set of holes is the same size or larger as the ports in the block (by eye about half inch dia?) I would say it will be fine.

Maybe we can convince terrx to remove his and measure them with some verniers (spelling?) next oil change. What do you say terrx? Or has anyone ordered one and not installed it yet?

 

[terrx]

Guys,

Great info!

Here is the latest oil analysis. Coincidentally they mentioned that the oil filtration is working well. (Photo is linked to a pdf file.)

92,800 mi change: Quaker State 10W30
95,300 mi change: Chevron Supreme 10W30
98,100 mi change: Chevron Delo 400 10W30

-Scott

​

 

[terrx]

Slomo,

I'm still trying to add a things to the cruiser - not take them back off.

If no one else has bought one and posted by next oil change I'll take it off and measure. You guys will have to do the calculations!

-Scott

 

[Slomo]

No worries terrx, just a friendly little jabbing. I would like to know the diameter of the smaller holes in the adaptor to calculate flow so my anal retentive self can be assured of good oil flow as I intend to run my engine untill at least 300k before a rebuild. I was hoping it would be realistic to just undo it to measure it at the next oil change and then put it back in without causing you too much trouble. If anyone gets one in the mean time and could measure it before installation that would be even better. Sounds like this mod might be a good way to minimize the time it takes for oil pressure to build at start up and not negatively effect the oiling of the motor at higher rpms.


Mo

 

[terrx]

The latest oil analysis came back good. Still no wear showing. Also no "insoluables" that could mean the adapter was restricting flow to the filter.

I posted the data here (bobistheoilguy.com).

Only downside that I've found so far: it's a little more awkward to get the filter in/out. When taking it out it's always full of hot oil and you have to do it from underneath where you're in the line of fire. Might be hard for someone with gorilla hands.

Up side: since installing it I've never had the "start-up rattle" happen again. Oil pressure always comes up the moment the motor catches.


-Scott

 

[tarbe]

I think it might be time to start spending some of that oil analysis money on dinner out

 

[tim_teasly]

This will be the last time I bump this thread.....Maybe. Has any one else installed this on their Cruiser? I may be ready to pull the trigger on this, and just want to see who else has input.

 

[jcolegrove]

did it year ago... for 2 reasons. to keep oil in the filter after shutdown, so there is shorter time at startup with no oil flowing-- filter is already full. i think that is valid point with this.
second was to make changes cleaner. this has not happened at all. oil still barfs everywhere both changes i've done-- YES, after draining pan!

 

[tarbe]

I probably won't bother with the filter mod, but I sure would like to get a stash of that Delo 10W-30!