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All flat V8's have both holes. If you really want the OP sensor down there at the bellhousing, where it takes an act of god to get to it, it can go in either hole. It all depends on your oil lines. What do you mean, they don't fit?
As I recall, when the OP sensor is down there, it goes in the top hole, and the filter line goes in the side hole. On 51-52, the side hole is plugged and the line comes out the top hole.
I have 3 sets of lines, including a "new" set from Macs, and none of three are long enough to make the bend to the side hole.
That is why I am confused. All 3 sets of lines only "fit" to the top hole.
Can anyone get a picture of an OE line in that area?
I've been going through this as well. My truck never had an oil filter when I got it, but it did have the filter supply line with the tee for the pressure switch but plugged on the end.
the supply line worked after straightening it some. Made a return line. Like they said, just 1/4" steel brake line and 1/4" line nuts (7/16-20). Not hard to learn to make your own double flares.
The red engine below, '50 F3, belongs to member Petemcl. It shows the supply and return lines perfectly.
Mine is a '53, the blue one, and has the same general configuration except for the return line which ran behind the head. Like CaptPayne's. Sorry, my only pics are from far away. I enhanced it some, but it's still a bit blurry. You can clearly see the supply oil line coming up from the block. If you look close, you can see the return behind the head and header.
My sending unit was on the same side as Pete's, but I rotated the tee so I could temporarily install a mechanical gauge directly on the engine. Just for the original cold start 22 years ago.
Edit: I found a reference pic I took before the current tear-down. It shows the oil return from the filter canister to the block.
Edit: I found a pic of a '50 on an auction site. It shows the return line behind the head and exhaust.
Okay,
I'm not building a "1000 point" truck, but I would like it to be "as built".
What I've been reading is it's okay to put the pressure sensor up at the top of the filter cartridge, and as long as I don't get heartburn about it nobody else will.
Before you go down that road, be aware that I don't know of a source for the factory style Tee, other than used. It's 1/8-MPT x 1/4-FPT x 7/16-female inverted flare. The 1/8-MPT leg is a drilled 0.060" orifice. I've sure never been able to find one. If you could find a tee without the orifice, you can get a FPTxMPT fitting that has the orifice here https://www.napaonline.com/napa/en/p/WH_1512
In this instance I got lucky. (one of the few times it seems with this truck.)
I had to buy a "new" block. The gentleman was no longer able to build engines so as part of the deal I had to take everything he had. This happened to include a filter cartridge with attachments and a couple of lines with attachments.
So I do have a couple T's as well as other connectors.
As long as it is the '50 option, I'm good with it.
Not sure what you mean by "50 option", mounting at the filter with the Tee was 51-on only. Whatever you do, be sure you have an orifice in the line to the filter.
Not sure what you mean by "50 option", mounting at the filter with the Tee was 51-on only. Whatever you do, be sure you have an orifice in the line to the filter.
That is where the confusion sets in. How did they run the lines if you wanted a filter in 1948-1950?
03-11-2016, 06:41 PM
