Fuel Filter Arrow

[magnumpi]

Just had a fun filled day working on some maintenance items on my new to me 1980 SC ROW. One of these projects was installing a new Bosch fuel filter. The part number of the Bosch fuel filter I removed was exactly the same as the new. The two filters looked identical, BUT, the new filter had the threads reversed, small female thread on the bottom and large on top. Also, the old fuel filter arrows were pointing down when installed, which means the direction of the fuel through the filter would have been going to the Accumulator. This is not how the fuel is supposed to flow, correct? Arrows should be pointing UP from the Accumulator to the FD fuel line.

Soooooooo, I guess the PO had installed the filter the wrong way and all this time my car has been drinking dirty fuel? I don't know how this was possible, unless the factory that made the filter screwed up. Has anyone else seen this? I've been hunting down a few issues around 'loss of power' at higher revs, symptoms like fuel starvation, could this have been the culprit, a reversed fuel filter installation?

Thanks,
Dan

[hcoles]

it might work fine reversed, just don't take it out and run it "backwards"

[DRACO A5OG]

Put some BG 44K in her and after another full tank replace fuel filter properly.

Geez even with an arrow PO put it in wrong