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Full-Flow Oil Filter Installation in T2 and Later Engines

September 27, 2010 | Troubleshooting & Repair

By David Jones

Figure 1
Overall view of lines for full flow system. Engine out of car in this picture. Here's how to plumb a full flow filter while retaining the mechanical tach (for those with electric tachs, there are other options). What is described and shown here only works for late "A" , "B" and "C" cases. Earlier cases would have to be tapped at a different point for the oil to filter because of different internal plumbing of the 3rd piece. Placement of the oil filter is mostly a personal choice. I have seen them out in the wheel well and on the shroud.

No matter where it goes it will need one line to pass through the ductwork somewhere. I personally favor putting it in the engine compartment off to the left in the rear corner on a bracket. High enough to be able to remove it in an upright position so one can fill it with oil before replacing it and so as not to spill more than necessary when removing.

I also favor using the filter that is compatible with the VW Rabbit/Golf diesel as it is a heavy duty filter with very low pressure drop. Better than the Fram HP1 racing filter.

Below are more photos showing the locations of the case inlet and outlet lines. Click any image for a larger photo.


Larger image



Larger image




Outlet from case to filter — Larger image




Outlet from case to filter — Larger image



Inlet to case from filter — Larger image

More information in PDF format: Full-Flow Oil Filtration and the 356 Lube System, by Ron LaDow (1.9Mb PDF file, requires Adobe Reader) Originally published in the 356 Registry Magazine, Vol. 28, No. 6

Related Articles:

Full-Flow Oil Filtration and the 356 Lube System
Stock Oil Filtration Effectiveness

2 Comments

Aa493c9f9299cdb0d51a6d201e2b655c 1956
Dr. Dirk Heinrich
November 04, 2010 at 12:31 AM
Mike, I tried to contact you about 1 year ago. I called and left messages maybe 4 or 5 times, never heard from you, and then just left it like that. <br />What is the best way to contact you?
Aa493c9f9299cdb0d51a6d201e2b655c 1956
Dr. Dirk Heinrich
November 04, 2010 at 12:31 AM
Mike, I tried to contact you about 1 year ago. I called and left messages maybe 4 or 5 times, never heard from you, and then just left it like that. <br />What is the best way to contact you?