Lister Engine Forum

How to / DIY => Engines => Topic started by: Powdermonkey on March 29, 2022, 02:52:21 AM

Title: Oil filtration
Post by: Powdermonkey on March 29, 2022, 02:52:21 AM
Folks- I thought I'd post a picture of a combination of what Butch recommended, as well as my adaptation.  I've used a toilet paper filter in my paint booth for years.  Works great.  No "fuzz" through the lines.

These toilet paper filters have been used for years on oiling systems.  Got this one, a "Frantz", new in the box.  As you'll notice, it's plumbed up quite nicely.  And, Butch recommended I feed lubrication to the second pump cam on this twin.  That jobs' now done. 
Title: Re: Oil filtration
Post by: cobbadog on March 29, 2022, 06:11:49 AM
For what ever reason the image will not download here.
Those very old fashioned toilet paper filters were used briefly on trucks here in Australia back in the 1970's but they soon lost favour against buying proper filters due to the life shortening effects they had on the truck engines because quite simply they do not filter fine enough to remove the nasties from the oil, only bulky stuff.
Title: Re: Oil filtration
Post by: Powdermonkey on March 29, 2022, 11:22:50 AM
Cobbadog- I can assure you, that through both my personal experience in paint spraying, as well the (admittedly advertised) testimonies written on the Frantz website, the toilet paper filter is superior to ANY other attempt I've tried. 

When spraying high-gloss black paint on a vehicle, even the most minute particle can be seen.  The smallest fiber will show up, as it's got the surface tension to break the continuum of the paint film.  At no time have any of the fibers of the toilet paper roll found their way onto any paint I've sprayed.  Nor have other foreign objects found their way into my paint.  Thus, I must find that "bulky stuff" and fine stuff IS successfully filtered through toilet paper.

Likewise, please bear in mind that once a standard oil filter "clogs" and the spring-check valve is opened due to excessive pressure to the oil filter, ALL oil goes into the by-pass circuit, and up into your engine.  Unfiltered oil.  This Frantz filter uses no bypass valve.  All oil that enters its system is filtered. 

Obviously, any filtering that does occur with the Frantz filter is done so through the paper element chosen by the end user. Thus, IF one were to use a poor choice, or a mis-fitting paper element, the filtering characteristics would be inferior to a superior choice. 

In general, the Frantz concept is used in concert with a primary oil filter.  BUT, one CAN use an adapter to cause the Frantz filter to be used as a primary filter element. 

One more point:  ANY filtering of oil in a Listeroid engine is superior to NO filtering of oil in a Listeroid engine. 
Title: Re: Oil filtration
Post by: Tanman on March 29, 2022, 01:16:04 PM
This is awesome, I think I'm going to do the same thing on my twin.
Title: Re: Oil filtration
Post by: Tanman on March 29, 2022, 04:48:13 PM
Have you had any trouble finding rolls that fit? I was doing some reading online and it looks like the rolls today often are not the same size as when these filters were originally made.
Title: Re: Oil filtration
Post by: Powdermonkey on March 29, 2022, 05:24:42 PM
The kit comes with paperwork that recommends certain inner roll sizes, and maximum diameter. 
Title: Re: Oil filtration
Post by: Tanman on March 29, 2022, 05:28:21 PM
Cool, has anyone tried using a standard 10" water filter hosing and those paper/cloth filters for oil? I've seen people use them in diy bio-diesel setups to filter the wvo, even when it is being heated.
Title: Re: Oil filtration
Post by: cobbadog on March 30, 2022, 04:46:51 AM
Gday powdermonkey,
I have no doubt it is adequate for spray painting but in that situation I will still use my water filters and my head mask designed for that use.
As for filtering oil in engines again I agree that any kind of filtration is far better than none. One of the reasons they stopped using this type here in Oz is that it was not adequate enough to filter all the baddies out of the engine oil in the trucks and at the cost of a rebuild they soon got a bad reputation as not filtering enough. Then as you mentioned there is no provision for a bypass for when the toilet roll is clogged up and in turn starves the engine for oil which is not good.
At the end of the day if I wanted to filter the engine oil on any of my engines I would fit a proper cartridge filter which oddly engine is what I did to my CD8hp which was a nice little set up off some VW model car unknown model. I am not being critical of your choice as to what to use on your engines just pointing out the risks
Title: Re: Oil filtration
Post by: 38ac on March 30, 2022, 12:30:17 PM
Here is a picture of his installation.  The oil line to the #2 side pump cam is a modification I do on all twins and he added the filter in line.


Title: Re: Oil filtration
Post by: cobbadog on March 31, 2022, 06:25:19 AM
Neat looking system. Is the blue knob an adjuster for flow?
I was going to fit a 1/8" line up to the rockers on my CD but have not bothered to do it as yet.
Title: Re: Oil filtration
Post by: Powdermonkey on March 31, 2022, 12:28:45 PM
The blue knob is simply for tightening the ring clamp around the filter body. 
Title: Re: Oil filtration
Post by: cobbadog on April 01, 2022, 05:49:29 AM
Cheers.
Title: Re: Oil filtration
Post by: Powdermonkey on April 04, 2022, 10:43:03 PM
Hi Folks-

16hp twin is up and running.  The oil by-pass and toilet paper oil filter appear to be doing the job.  No leaks whatsoever.  I retorqued the head after a 20-minute run time.  I'll check the oil quality on the next run.
Title: Re: Oil filtration
Post by: cobbadog on April 05, 2022, 06:53:19 AM
Well done. Can you post a video or some pics at least please? Always like hearing that another engine has been saved.
Title: Re: Oil filtration
Post by: mihit on April 07, 2022, 08:00:49 AM
Well done. Can you post a video or some pics at least please? Always like hearing that another engine has been saved.

"Like"
Title: Re: Oil filtration
Post by: Powdermonkey on April 15, 2022, 11:31:55 AM
Two weeks since I've hit the "go button" on the filtered twin.  I can report that the oil, which I checked again yesterday, is absolutely clean.  Not black, not grey, not "just a tinge" of anything but yellow.  I run that engine every day, for 5-8 hours. 

I'll report back in about a month. 
Title: Re: Oil filtration
Post by: cobbadog on April 15, 2022, 12:24:31 PM
Good outcome.
Title: Re: Oil filtration
Post by: mike90045 on April 15, 2022, 06:24:38 PM
I 'm sure you have a way to make sure it's really circulating and getting filtered ???
Title: Re: Oil filtration
Post by: BruceM on April 16, 2022, 10:39:16 PM
I thought that even toilet paper roll filters couldn't remove suspended carbon in diesel engine oil, certainly not to clear oil levels.

That's why Mike is asking...  me too.
Title: Re: Oil filtration
Post by: veggie on April 16, 2022, 10:49:12 PM

With my filter system the oil goes black fairly quickly.
It's probably very clean for much longer, but it is black.

click to enlarge...
Title: Re: Oil filtration
Post by: cobbadog on April 17, 2022, 06:43:48 AM
Diesel oils are usually a detergent oil which means they are designed to clean the inside of the engine and pick up the carbon deposits and is why your oil goes black. To me this is exactly what it is meant to do. I had reservations about the toilet roll filter as I knew some truck drivers back in the 1970's that went over to them for cost saving but cost all of them engine rebuilds. They simply do not do the job as good as a proper paper element / cartridge type because of the type of paper used.
However one of these filters used on an engine that has not  usually have a filter of any kind is better than nothing so long as the full flow is there.
Title: Re: Oil filtration
Post by: Powdermonkey on October 21, 2022, 02:04:11 AM
500 hours, still going strong. 
Title: Re: Oil filtration
Post by: cobbadog on October 21, 2022, 06:04:01 AM
Is there any further change in the colour of the oil yet?
Title: Re: Oil filtration
Post by: Powdermonkey on October 21, 2022, 11:02:23 AM
Is there any further change in the colour of the oil yet?

The oil is opaque. 
Title: Re: Oil filtration
Post by: cobbadog on October 22, 2022, 11:42:39 AM
My thoughts are about oil is firstly it is there to lubricate and secondly to pick up the contaminents and take thm to the filter to trap the larger particles but the smaller ones stay suspended in the oil until it is changed hence the oil changes colour to black. I can't see how a toilet roll catches those finer particles that a specific built paper element cannot trap.
I would not trust that system to do the job as well as a purpose built one. But this is my thoughts only and not my engine.