1966 MF 165 update and another question

Hello all and thanks for all the info on the hydraulic problem. Using the AGCO parts books, I was able to determine which linkage pieces were missing and have them on order.
Last weekend, I decided to go ahead and get the engine serviced, oil, oil, fuel and air filters. Oil and air went without a hitch. The problem was when I went to change the fuel filters, ( Perkins AD4.203 diesel), I realized that someone previously had cut the lines to the fuel lift pump and primary filter, added a piece of rubber fuel line coming from the fuel tank to the secondary filter then straight to the injector pump. Making it a gravity feed system. Now I know that Massey Ferguson put that lift pump on there for a reason, and I know the primary acts as the main separator filter from the fuel tank for water and other such stuff.
Has anyone ever experienced this type of hack job? The engine runs fine without a load, and I was able to drive it up onto my trailer with no problems. Other than the lack of separation from the primary filter, what can I expect. Has anyone ever replaced those lines with brake lines (I did that on my '51 8N)? If so, what size did you use. I do plan on getting everything back to the way it was, unless I hear different.

Thanks again,
Roger

MF used 1/4 inch lines on the three and most four cylinder pumps, and 5/16 lines for the six cylinder models. Thick wall rubber grommets on the 1/4 line ends and thin wall grommets on the 5/16 lines. Steel brake lines work well.

Thanks for the reply DieselTech.
I thought they looked like 1/4" lines, but I haven't pulled any of the cut ones to check the threaded fittings. Will the flared brake lines require the grommets you mentioned?

Thanks again,
Roger

The grommets should still be used. The early tractors did have some brass sleeves but leaks were common, the rubber sleeve grommets seal better, but they can be hard to get apart.

Thanks Dieseltech. I plan on removing my cut ones this afternoon to take some measurements and check out the seals. If my seals are bad, where can I find them?

Thanks again,
Roger

A shop that works on diesel injectors, and diesel injection pumps should have them. The AGCO/MF part number for the 1/4" rubber sleeves is 376525X1.

Thanks ptfarmer.