Topic: Oil filter lines and installation


sarahcecelia    -- 07-08-2019 @ 8:33 AM
  My 1940 car came with a copper line for the oil filter, and the filter housing, but I do not have the flex line for it. Is that copper line one of the proper lines for it? Are there other parts I need to mount it? Where does the input oil to the filter come from, and where does the return to the motor go to? Which line is the return, flex or other? I know it mounts on the driver's side head, but is there a special place for it to mount with bolts, or do I have to pull head nuts? What if any, parts am I missing?? The motor is "papered over " now to repaint the inner fender panels, so I can't see the driver's side head, but I got thinking about mounting the oil filter and using it.

Regards, Steve Lee


kubes40    -- 07-08-2019 @ 9:04 AM
  Steve,
Both the supply and return lines were flexible hoses. The supply line came from a threaded port next to the oil pressure sending unit and connected to the side of the filter housing. The return line was routed from the bottom of the filter, through its own (bracket) hole and either (early) to a special fitting that replaced the left bolt - fuel pump to stand or (late - May, 1940) it was routed forward and was connected to the timing gear cover by replacing a "stock" bolt with a special bolt.
The later version is what one most often sees these days as the early type fittings and hose are quite scarce.
The filter housing mounts forward on the left cylinder head. Three special nuts are needed for this. They (nuts) are undercut so they are able to thread the full length of the stud(s).

Mike "Kube" Kubarth


sarahcecelia    -- 07-09-2019 @ 6:47 AM
  Thank you so much Mike "Kubes"! Is it safe to assume that to get the parts that I would need is nearly impossible? The flex lines could probably be made by a hydraulic supply house, but how about all of those other special fittings? Probably very hard to come by, right? and would the (3) original head nuts on the head have to be removed to install the filter housing with those undercut nuts? It would be nice to have an oil filter- but chances of it seem very slim.

Regards, Steve Lee


kubes40    -- 07-09-2019 @ 11:16 AM
  The nuts have to be replaced with the special ones specific for the filter.
If authenticity doesn't matter, you can have any hydraulic hose supply place make the lines and supply the necessary fittings. Be 100% certain that you reduce the inlet fitting to a nominal .060".

Mike "Kube" Kubarth


sarahcecelia    -- 07-10-2019 @ 3:35 AM
  Can those Special nuts that hold the filter case on the head be had mike??

Regards, Steve Lee


kubes40    -- 07-10-2019 @ 5:03 AM
  Oh sure. I may have them. If not and you can't find them elsewhere, anyone with a lathe can make them in a few minutes.
It just a regular head nut with a slight undercut made in it so it (the undercut) fits within the hole of the filter.
The nut needs to seat against the cylinder head - NOT the oil filter.

Mike "Kube" Kubarth


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