AOW162435

Since purchasing my 993 in September of last year (w/ 34k miles), I've slowly worked my way around the car, refreshing certain items, replacing others, and generally getting a feel for it. I've replaced the pollen filters, replaced the air filter, changed the oil (both filters), flushed the brakes and clutch circuit, replaced the slave cylinder & hose, etc. Since replacing the fuel filter seems like a fairly easy DIY, I wanted to know if there are any marks or date stamps on the filters that would indicate age. Maybe an imprint that is visible only with a mirror?

The records I have make no mention of a filter change in the past, but it would be silly to go through the effort only to find that the filter is new.

I just did this on my other car, so I'm ready for more

Andreas

viperbob

With 34K and going by the Porsche service intervals, it would not have been changed. It can't hurt anything to change it. Pretty darn cheap. When you do, write on it with a permanent marker or paint pen with the date and mileage so you or someone in the future will know when it was changed...

Keep up the good work Andreas.. You're certainly getting to know your car....

deltawedge

Non that I know of (except for the date I wrote on mine when I installed it). It is an easy DIY. Just run the motor and remove the fuel pump relay; the motor will die in a few seconds (no fuel pressure to deal with). The fuel pump holds a good amount of fuel, so have rags ready and a cold motor (fuel on hot exhausts is bad). You may want to check the line that goes from the filter to the fuel rail as mine was seeping a bit. Have fun.

AOW162435

Bob,
Any thoughts on running the car with the fuel pump fuse removed in order to de-pressurize the line? I thought I read that somewhere, as it would be nice to keep the engine compartment free of spewed fuel.

Andreas

AOW162435

Thanks Ken - you answered the question.

Andreas

deltawedge

I spent too long writing the response; viperbob beat me. Have fun with the car!

GrantG

Yes, unless you have records indicating a filter change, you can assume you're on the factory original filter until 60k miles (recommended factory interval). I just changed mine at 53k miles and the fuel I dumped out of the "input" side of the filter was filthy. I'm going to change it from now on every 15k miles...

AOW162435

I presume the line ends are compression fittings - so when tightening, snug should be good? Or a bit more than snug if a leak shows. I'm not sure how one would get a torque reading in that space.

Andreas

ZombiePorsche44

When in doubt, replace it and start with a new baseline................ZP44