Oil flow in a factory bypass system?
 

Ok I am confused.... Normal some would say, but I will leave my family out of this...

I just took apart a factory bypass oil filter system... And I am buggered if I can see how the oil passes through the filter? Oil comes in the side of the housing..... Goes out the bottom... what am I missing here? How does it pass through the filter when the inlet and outlet are both outside the filter?

I know the answer will be simple but it's not coming to me and googling it did not help....

Re: Oil flow in a factory bypass system?
 

look at the center post, a ways down is a hole in the side

Re: Oil flow in a factory bypass system?
 

After the oil passes thru the filter it exits thru (2) i/16" holes in the center tube and out the bottom.
The center tube holes are at about the same level as the inlet tube and with the inlet fitting removed it may be possible to see at least one of the holes thru the inlet hole.


https://www.fordbarn.com/forum/attac...2&d=1555852614

Re: Oil flow in a factory bypass system?
 

I looked for a hole in the post but I could not see one which would be inside the filter. I could see some below where the base of the filter sits...

Still confused.....

Re: Oil flow in a factory bypass system?
 

Ok, I will have a better look tomorrow.

Re: Oil flow in a factory bypass system?
 

The holes in the center tube may be plugged with sludge. Take a small wire brush or an old tooth brush and clean off the center tube or maybe an air gun.They are there although they may be difficult to see.

Bill in Conn.

Re: Oil flow in a factory bypass system?
 

That makes sense.... I cleaned off a layer of goo about 5mm thick off the bottom... I really did look hard, but it seems the holes are smaller than I was looking for and as you say filled with sludge....

Re: Oil flow in a factory bypass system?
 

Be carefull when reassembling, if you have removed the brass fittings that screw into the filter canister. One of them has a restriction orifice, and it screws into the side of the canister, and connects to the steel line coming from the back of the engine by the left cylinder head. The purpose of the restriction is to control the amount of oil passing through the filter, while maintaining a restriction in the line to maintain oil pressure in the engine.

Re: Oil flow in a factory bypass system?
 

>>>holes are smaller than I was looking for and as you say filled with sludge>>>


As Yogi might say, a filter is better than nothing till it isn't. 8^) Jack E/NJ

Re: Oil flow in a factory bypass system?
 

The first diagram may be a one that 51 Merc posted in an earlier thread. The return holes are in the stand pipe, they are just a little difficult to find.

Re: Oil flow in a factory bypass system?
 

If I had seen that first photo I would have not asked the question. Those little arrows pointing in half way up the tube were the missing link in my research.

Should look good in the boat... Painted cream with new decals, brass fittings and copper lines. I can mount it on the hull bulkhead as long as it has the correct fall for the oil to return to the sump. I assume it is just gravity return?

Re: Oil flow in a factory bypass system?
 

Nope, it is under pressure. The restrictor reduces the volume that goes through the filter, but it is still under pressure.

Re: Oil flow in a factory bypass system?
 

I understand the pressure going into the filter.... Ok now thinking about it... It's a sealed filter system so it must be pressure pushing the return back into the engine as that pressure has no place else to go.... Slow learner.... :)

Re: Oil flow in a factory bypass system?
 

pressurized rite into the pan, except when your cover leaks :D

Re: Oil flow in a factory bypass system?
 

Good point! I don't want oil in my boat.

Thanks for the education guys, I really appreciate it. :)

Re: Oil flow in a factory bypass system?
 

Pictures of the boat??
I had mates who had a flathead powered boat, we used to go to a lake somewhere around Fielding and burn around in it.that was in the 60,s.
Lawrie

Re: Oil flow in a factory bypass system?
 

The boat still a wreak, I am starting the wood work in a couple of months when I get it to my workshop.

Re: Oil flow in a factory bypass system?
 

more...

Re: Oil flow in a factory bypass system?
 

more

Re: Oil flow in a factory bypass system?
 

another...

Re: Oil flow in a factory bypass system?
 

....

Re: Oil flow in a factory bypass system?
 

and how it was 30 years ago when the previous owner bought it...

Re: Oil flow in a factory bypass system?
 

when i was a kid, my dad was into wood boats. i learned early on, do somthin else!!

Re: Oil flow in a factory bypass system?
 

I worked in a boat yard for 4 years in the 1990's.... And back then I never owned a boat!
The appeal of this one to me is that it's old, very cool, and importantly, small.
It's a bit like the AC Corbra of the sea in the 1930's and that appeals to me.

Re: Oil flow in a factory bypass system?
 

I have found the holes!! I was not looking hard enough and they were smaller than I was expecting.

Re: Oil flow in a factory bypass system?
 

I have two, black and blue. They are different in shape underneath and the black on has the inlet on the back and the blue one has it on the side... Can someone date the two types at all?

Re: Oil flow in a factory bypass system?
 

Black...

Re: Oil flow in a factory bypass system?
 

Blue....

Re: Oil flow in a factory bypass system?
 

Blue two.

Re: Oil flow in a factory bypass system?
 

Boy, I wish you luck with that. The back row at the storage yard at the marina I kept my boat at thirty years ago was filled with boats like that, some with a few boards replaced.

I admire your ambition.

Re: Oil flow in a factory bypass system?
 

The bottom of the hull is sound and the shape it still there for the sides and deck so that's good. Just time consuming, taking one upright off, remaking it, refitting it, move onto the next... Luckily I quite unjoy the mindless tedium.

It's going to be done with as many Artdeco details as I think look good so it should be quite a thing when finished.... Cream bottom, dark blue sides, varnished mahogany top and stern... Lots of one off cast chrome details and trims on the corners of the woodwork... Funfunfun. If you look up a Garwood speedster you will get an idea of the layout and size of the boat.

Re: Oil flow in a factory bypass system?
 

I admire your ambition too, and have a lot of respect for wood craftsmen. Have you seen the thread on here about building a woody wagon. GBSISSON off the coast off Washington state. I like the black filter housing with drain plug! Makes life less messy when you change the filter. I can’t help with dating them..... Mark

Re: Oil flow in a factory bypass system?
 

actual dates of the cans i cant do, but there are different mounting holes. 8ba's will have smaller bolt holes and mount in they're own bosses on the head, and the earlier have big holes for mounting with the head bolts, or studs

Re: Oil flow in a factory bypass system?
 

Don't even think about using copper lines. And a bulkhead mount will also require flex lines. An external oil line failure is the quickest way to convert your fresh engine into a shiny new anchor.

Re: Oil flow in a factory bypass system?
 

Cooper lines run properly, correctly aneeled to make them soft ( ie not work hardened) without tension on them and with the needed anti vibration coils put in the lines are fine. It was done all the time on early vehicles.

But I take your point. Not done correctly they could be a disaster.

Re: Oil flow in a factory bypass system?
 

If your oil filter is connected to the motor, it's the same as hard fuel lines. Motor shakes together. Only lines from the body or frame to engine can be suspect. Reason for the flex line between the tank and fuel pump.



Oh course all lines need to be considered. Fuel to tank, brake lines on frame. etc etc... well not brake lines for you. :)

.

Re: Oil flow in a factory bypass system?
 

As you profess to know everything there is to know about copper tubing, I'll not remind you of the several factors you haven't considered. And I'll challenge you to identify the early vehicles you believe to have used copper tubing all the time. :rolleyes:

Re: Oil flow in a factory bypass system?
 

Well that's not helpful. My 1915 fiat for a start. Not a rubber tube on the thing. Take a look at a Rolls Royce silver Ghost engine.

I never said I know everything.... Always learning.

But saying a blanket "no copper lines" is like saying "don't drive a car".... If you can't do it right, then don't do it.

Re: Oil flow in a factory bypass system?
 

If you have a line from the the bulkhead to engine, It would be smart to run some sort of rubber line. If you want to stay vintage maybe a rr ghost umbrella hose or seal. Maybe it's fine.

Not sure anyone said never use a straight copper line throughout. I could be wrong. Most of the time I am. I wouldn't on anything not connected to the engine without a indeterminate.


Sometimes these things get a bit out of line, no fault to poster or responded party. Water off a ducks back.

Re: Oil flow in a factory bypass system?
 

OK, I don't know the first thing about those examples, but I do know that Ford used copper plated rolled steel fuel lines, a product that is still being manufactured today. As you are still learning, you should know that copper tubing will stress harden over a period of time from simply straightening the annealed coil; Regardless of anti-vibration coils, vibration still occurs; And... heat/cool cycles of engine oil will do the deed much quicker.