homemade bypass filter

[emmer]

I think I'll make a homemade bypass oil filter, since I can't afford the one Amsoil makes.

I'm planning on t-ing off from the oil sender and going into a (2 micron) filter and then back into the filler spout.

what do ya'll think? thumbs up or down

thx for any comments.

 

[87crewdually]

Honestly a FL1995 oil filter is plenty of filtration for me. It has a lower micron rating than a stock filter and gives you another quart of oil capacity(11qts.).

 

[emmer]

Yeah, but it's still (barely) a 20 micron filter.

@ 20 microns, it's only 68% efficient. That's still a pile of crud circulating thru the system.

That said, the extra quart of oil is good

 

[seawalkersee]

Put a magnet on it and see what you have. I bet you suck more out of the system than you think.

SWS

 

[87crewdually]

I just had the engine out and apart and the thing was surprisingly spotless inside (except the blown apart head gasket). Quality oils and regular checks/changes and all is good.
I would maybe look into it more for longer change intervals if i was racking up the miles on long hauls but I'm not looking to get 800,000 miles out of it before tear down. I think the cab/body will wither away long before milage like that is ever met.
This is my opinion in MY situation so by all means go for it and i hope it works out.

 

[CDX825]

Should work fine.

What kind of filter are you planing on using?

 

[emmer]

Good question CDX... I'll have to do some investigating.

I'm wondering if (when) I t-off from the oil pressure line, if that would screw my oil pressure reading (machanical)

 

[pybyr]

Good question CDX... I'll have to do some investigating.

I'm wondering if (when) I t-off from the oil pressure line, if that would screw my oil pressure reading (machanical)

If you do a true bypass filter, then you'll aim for limited flow, which will lead to limited pressure drop from the main system. Bypass filters, by design, do not aim to clean everything in one pass-- they do it by nature of the fact that the oil gradually goes through a very fine filter as the engine runs. My Ford/Navistar OEM shop manual for the 7.3 depicts a specific port, on the oil filter boss, intended for a bypass filter-- so I have to think that a proper bypass filter will not be a problem-- I am hoping to put one on my truck.

 

[emmer]

where is the specific port? I have a 7.3 idi

 

[pybyr]

where is the specific port? I have a 7.3 idi

According to the "'88-93 7.3 Engine Service Manual" reprint that I have, there's a 1/2 inch hex head plug in the bottom front of the same casting that holds the oil filter, and that is specifically noted as a take-off point for oil for a bypass filter. One of the other diagrams shows an oil return somewhere on the rear of the block, but I am not recalling exactly where. Depending on what type of bypass you run, you can probably feed the return back into the oil fill cap or someplace in a valve cover.

 

[CDX825]

I have heard of guys using 2 micron hydraulic filters before. Anything lower than 5 microns should work good.

Just make sure if you do decide to make your own filter to use something to restrict the flow to it.

 

[Agnem]

If you convert to an electric fuel pump, the block-off plate makes an excellent place to mount a return line.

 

[69dieselfreak]

fleetguard makes one i dont rember what the filter head p/n but the filter number is LF777 it was pretty cheap too

 

[04_6.0]

Ive been looking for parts to do this on my own because i too believe what they want is too high. Ive looked for months for a 1-2 micro filter; that is truly a bypass filter and the only one i have found is the Amsoil one. Its 35 bucks and as long as you do not mind chasing down the various fittings it a pretty easy job. i have about 100 bucks in the one on my 6.0 liter and it works great. The filter comes with 1"-16 threads. So finding a base made from wix or donaldson or anyone else is tricky or atleast i havent been able to find one except from amsoil. There use to be a donaldson filter that was a good one but it is no longer made anymore i got all the info written down but im 1,500 miles away from home. Hope this helps.

 

[emmer]

really good advise! Thansk alot!!!