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Requesting explicit detail on how to replace fuel filter ?
http://i59.tinypic.com/2ue2vxt.jpg
I'll apologize in advance! Unfortunately, the esteemed "101 Projects" book simply says "Remove filter. Replace filter. Done!". As a mechanically challenged poster, I need a little more guidance than that. None of the bolts on the replacement filter spin, so I'm not clear to me what moves and what's fixed. Do you spin the filter? Can someone spell out how you're supposed to remove it? For example, "Put a wrench on nut #1, spin filter clockwise" or "Spin nut #2 counterclockwise while holding nut #1 with a wrench" etc |
There is a little more detail in the on-line tech article:
Pelican Technical Article: Fuel Filter and Accumulator Replacement - 911 (1965-89) - 930 Turbo (1975-89) EDIT for correction: You do want the upper most and bottom most nuts to move (but do not twist/torque the fuel lines). You may have to brace/block these outer most nuts with a locking wrench or vice grip, which must have leverage on something adjacent to it to prevent them from torquing the lines. Or you can grow a third arm, or have a buddy help you. I found the fuel filter and accumulator sort of unnerving to work with, it's high pressure fuel you are dealing with. |
you need two wrenches
I don't remember the sizes off the top o my head, maybe a 14mm and 17mm you should have all the sizes at least between 10mm and 19mm righty tighty lefty loosy |
Requesting explicit detail on how to replace fuel filter ?
Hold nuts 2 and 3 in place. Loosen nuts 1 and 4.
Top first, then the bottom. Sent from my iPhone using Tapatalk |
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As I understand, kach22i is saying NOT to spin the outside nuts b/c they will twist the hard fuel lines (So, are you saying to turn nuts #2 and #3?) Meanwhile, timmy2 is saying to spin the outside nuts. (Spin nuts #1 and #4) Anyone know which one is correct? Are nuts #1 and #4 rotatable? Or are they a fixed part of the fuel line and the filter needs to screw into them? http://i59.tinypic.com/2ue2vxt.jpg |
Hold nut #2 from turning
loosen nut #1 Hold nut #3 from turning loosen nut #4 |
Hold inner nuts stationary while outer ones get loosened. Do this for each end. Order of ends doesn't matter IMO.
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I replaced mine last year; procedure was exactly as timmy2 says.
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Thanks for clearing that up!
Consensus says that the outer nuts #1 and #4 are the ones to run. They must spin in place, while the filter stays fixed. I wonder what kach22i was trying to say ?? |
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Like others said, two wrenches, righty tighty, lefty loosey. The bracing I remember had to do with the torque being transmitted though the filter housing despite the two wrench method. timmy2/pete3799 are right, but watch what's happening at the top and bottom while you are doing it. |
This video helped me when I replaced my fuel filter.
http://m.youtube.com/watch?v=sf4-NAvB_lc |
Go to YouTube and search yellowcapgarage and fuel filter.
Edit: jonvi, you beat me by a minute |
Takes some force, especially the lower ones...
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I think when I did this awhile ago, I found it easier to remove the curved pipe on the top with the filer (there's another connection that's blocked in the photo) and then remove the top fitting outside of the car.
If this doesn't make sense, then just do what pete3799 says. Oh, and don't forget to disconnect the (-) battery cable. When you remove the filter you'll have gas leak out, and you don't want any sparks. Good luck! |
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If your right arm is stronger than the left arm, and the right arm is doing the turning, add in some sticking from corrosion and that's where some twisting is possible. That's what I remember, and that's my warning. |
The video is exactly what I needed.
Brilliant level of detail. Thanks everyone! |
Requesting explicit detail on how to replace fuel filter ?
Spray a little Kroil on that top nut and let it soak in for a while before trying to undo it, it looks a little corroded.
Sent from my iPhone using Tapatalk |
Residual fuel pressure..........
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kachi, That's is true if you just ran the fuel pump a few minutes ago. The residual fuel pressure would drop to almost zero on the gauge after 8 hours. So if you leave the the engine over-night, the following the day there will be no more residual pressure to worry. But there still be fuel in the lines but not under pressure to be of concern. Tony |
It helps to put the wrenches clocked about 30 degrees so that you can squeeze them to loosen and the same idea to tighten them up since it gets tight in there.
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