Let's Talk About Oil Filters

1964 Massey model 65
AD204 Perkins diesel direct injection
SN UNDM 704769
Approx 2780 hrs or so, meter was broken when purchased

The tractor currently has the original basket filter.
I see there are kits for spin on filters and these appeal to me for ease of change.

But which have the best filters? Basket or screw on.
As in the smallest micron ratings for removal of "stuff"?
Are there upsides and downsides to this change?

What's the best oil for my old tractor?
Rotella 15-40 is pretty cheap at Megalomart and so is Delvac
At cold starting oil pressure goes up to slightly over 60 psi and after its run for while and hot the pressure drops to about 40 and holds there. The drop is expected, it's an old tractor.

The oil in it is unknown as I haven't changed it yet and it still looks good. I just don't like unknowns. They bug me, always in the back of my mind.
I appreciate the experts once again for helping me keep this old thing in good shape.

I think either type filter will do the job, but I converted all my tractors to spin on for ease of changing. Just a matter of preference as
far as I can tell. 15-40 Rotella is the way to go for oil. IMO

(quoted from post at 19:52:10 11/15/18) 1964 Massey model 65
AD204 Perkins diesel direct injection
SN UNDM 704769
Approx 2780 hrs or so, meter was broken when purchased

The tractor currently has the original basket filter.
I see there are kits for spin on filters and these appeal to me for ease of change.

But which have the best filters? Basket or screw on.
As in the smallest micron ratings for removal of "stuff"?
Are there upsides and downsides to this change?

What's the best oil for my old tractor?
Rotella 15-40 is pretty cheap at Megalomart and so is Delvac
At cold starting oil pressure goes up to slightly over 60 psi and after its run for while and hot the pressure drops to about 40 and holds there. The drop is expected, it's an old tractor.

The oil in it is unknown as I haven't changed it yet and it still looks good. I just don't like unknowns. They bug me, always in the back of my mind.
I appreciate the experts once again for helping me keep this old thing in good shape.

Click to expand...

I agree with you about spin on filters being easier and I would say they are better as they are newer technology then the basket style so the micron rating is probly lower.

Which brings your next question micron rating is the size of the contaimenant. The smaller the micron rating the smaller particles of "dirt" the filter can trap. Generally the smaller the micron rating the better but there are exceptions.

15w40 oil will do just fine rotella or delvac is fine they both meet oem requirements. The reason your oil pressure drops as engine warms up is not anything to do with tractor age. The oil gets thinner as it gets warm and therefore the pressure drops.

Convert it to the spin on, I use Shell Rotella 15w40.

Hey thanks guys. Spin on it will be then.

I'll gather up a kit before change time and do it all at once.

Both myself and my old tractor appreciate it.

I started researching replacement spin on filters for this project so I could keep some on hand and found some fairly interesting stuff about filters and filtration.

Moroso engineers say that particle size under 20 microns (.000787 inch) are to small to contribute to engine wear. That's the only handy source I found; I'm sure there are others. Most of the 3/4 16 tpi crossover filters I found were around 20 microns with a few larger. Cummins Filtration (Fleetguard were 30 microns. That surprised me.
As a filter media "bridges" from the larger particles, it gets smaller and smaller particles as it clogs up.
Some had anti drain back valves some did not. I don't think the ADV is important due to the orientation of the filter.
Bypass valve pressures were generally 8-17 psid, some higher.
Burst pressure was usually 300 psi.

Harder to find is the oversize filters that would fit. I would prefer this due to the larger filter area. About the best filter so far is the Baldwin BT215, enhanced cellulose media, 18-20 micron, standpipe design with ADV and bypass open at 8 psid. Price ranges from $8-10 on up, so not prohibitive.
I'll probably put in a call to Baldwin and see what they have for oversize filters if any.
Probably not needed with a pump flow of 5.75 gal/min at 2000 rpm, so oversize filter is not critical. That's just me overthinking things.

I couldn't find any synthetic media filters that would fit, and they are usually pretty expensive as well, so not going there.

I'll get the adapter head from YT. They had the best price. I'll pick up some shorter bolts from the hardware store.