So I went to use a FRAM CH9549 cartridge filter for a Ford 6L PSD. When I open up the box, I find it comes with this big instruction sheet. I go, "Hmm, this is new."
So I read them and it has drawings of two different base designs used on these engines; "A" and "B".
It goes on to say if it is a B design, install the filter as normal.
If it is an A design, you have to install this little (~25mm dia) boat prop looking piece of plastic on the top of the filter stand in what I assume to be the bypass valve.
Well, the truck in in question was an "A" design. So I tried for 10 minutes to install this dinky piece on the top of the filter stand.
I tried following the directions and start one fin and work around but it was a losing battle. It finally flipped off and dropped down somewhere in the V of the engine where I couldnt get it.
So I did the only sensible thing. I threw the Fram cartridge across the shop and acquired a Motorcraft cartridge which took all of 30 seconds to install.
So I read them and it has drawings of two different base designs used on these engines; "A" and "B".
It goes on to say if it is a B design, install the filter as normal.
If it is an A design, you have to install this little (~25mm dia) boat prop looking piece of plastic on the top of the filter stand in what I assume to be the bypass valve.
Well, the truck in in question was an "A" design. So I tried for 10 minutes to install this dinky piece on the top of the filter stand.
I tried following the directions and start one fin and work around but it was a losing battle. It finally flipped off and dropped down somewhere in the V of the engine where I couldnt get it.
So I did the only sensible thing. I threw the Fram cartridge across the shop and acquired a Motorcraft cartridge which took all of 30 seconds to install.
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