Pre-oilers and bypass filters.

[Harpua216]

Looking to potentially add one to my 4.0L SOHC and did some poking around. What I came up with were people suggesting two ideas and I was wondering about the differences and applications of the two.

What types of pumps are out there? where are the best places to mount? how/where do you introduce it to the system? what type of electrical is involved?

How can a bypass filter help pre oiling too?

OR...

any links to threads I could not find... Thanks!

 

[swshawaii]

Have you seen this thread?
pre lube and centrifugal engine oil filters

Best 4.0L SOHC info on EF.
2000StreetRod's Helpful thread list

 

[Harpua216]

I did not. thank you that is exactly what I needed.

 

[CDW6212R]

A couple of pointers for installing a bypass oil filter system.

Note that those are supplemental filters, not full flow to replace the existing one. They have a restrictor built into the outlet adapter(not the filter) to limit flow, because their small filtration size(2 microns etc) cannot support enough flow to take all of the oil continuously. You have to either use the special bypass filter adapter which includes that restrictor(.094" - Amsoil), or be sure there is a restriction included.

You can use a normal 3/4-16 thread(FL1A filter) filter mount if you locate and buy a thread adapter(thanks Dale good idea) which will convert the 3/4"-16 thread into 1"-16 threads. Here's a current link to an eBay seller migbro, with this thread adapter; Oil Filter Adapter, 3/4"-16 Thread to 1"-16 Thread Fleetguard LF9028

That may help you if you can create the restrictor hole in another fitting yourself. Otherwise the proper bypass filter mount would be more feasible, those cost $60ish now.

 

[Harpua216]

Thanks Don. I like the idea of it. I am wondering if this will assist with the lash slapping and potential timing time issue that is probably going to occur within the next 30-40K (has 130K on it, who knows..lol)? as well will it perform the same functions as a pre oiler in this regard? I do live in a climate where it gets pretty cold so I am thinking this is a good thing to do before the winter.

My buddy can fabricate something for me if i can give him some clear specs. may be an option,

 

[CDW6212R]

A pre-oiler provides oil pressure before the engine starts, as does a pressurized device to store oil, and those are the only good ways to get oil pressure before start up. Both are not cheap so most people would work on the engine to be sure it's in top shape, first.

I have to rebuild the trans in my V6 Explorer, so I will do the SOHC timing chain parts again, front and back this time. If you can get that done at decent intervals like 75,000 miles, the engine should do well.

A bypass filter system will get the oil cleaner than when new, literally, and that will reduce normal wear for major items like bearings and rings, cylinders etc.

Figure out what your truck needs the most, and concentrate on that first if you can.

 

[Harpua216]

Thats sorta where my head is at right now. it looks as though the rear chain has been done, and I believe this trans was rebuilt (pretty good hunch). So when I have a helper and some good weather i am going to verify my sounds by taking off the belt and eliminating the pulleys etc.,.,.

The use of the AC has now helped me target the sound, sounds like it coming from the injectors (where i had the sounds in my older push rod engines) or an accessory. with a homemade tube "scope" the best readings i got was on the PS & and the intake manifold. When i hit the valve covers the sound depleted.

O looked at a few pumps and the most realistic one on the better side was about 189$ (1.5QT i think). is that just for the accumulator itself? or the pump also? so I am guessing about another 150 in parts and then the time to do it (which is sometimes more expensive than money), I may just start a timing chain / rebuild piggy bank. Bu i do however like the idea of a pre oiler on plastic internal engine parts. it makes some sense.
Thanks

 

[CDW6212R]

Read into Dale's(2000StreetRod) threads about his 2000 Sport that he has an oil accumulator on, he weighed, the pre-oiler pumps versus that, and he went the other way. His threads will have more details on an actual SOHC 4.0 truck, and he does great write ups and pictures.