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It seems that not many people on this site own tef-20's, thank god I've found someone else who does. OK, turn off both of the stop cocks from the diesel tank, (turn to horizontal). Next, PUT RUBBER GLOVES ON, and undo the half inch long nut above the first filter, gently pull down, and tip deisel and filter into a pot so that the filter can be thrown away, and the diesel (that will probably be dirty in the bottom) can be disposed.
Carry out the previous proceedure for the second filter, and clean the inside of the filter holders (don't know the proper name). Check the rubber ring that will be in the top part, where the holder fits in. Replace filter, fill to within 1 inch from the top (this is not vital, but speeds up bleeding)replace the holder, and screw back, do not over tighten. Turn on the stop cocks (vertically), unscrew the bleeding screw from the FIRST filter and wait for the fuel to rise out of the hole (if you have a fuel pump, then prime that to get the fuel out of the screw hole). !!!IF BUBBLES ARE COMING OUT OF THE HOLES, WAIT UNTIL THERE ARE NO BUBBLES!!! Put the screw back in, and tighten firmly. Do the same proceedure for the SECOND filter (again, if you have a fuel pump then prime it). Now unscrew the first screw on the injector, it is the far right one, and work your way from right to left waiting until the fuel flows out of the holes (use the fuel pump if it is fitted) and tighten firmly. If you are still having problems, then e-mail me.
I have pictures of what to do, but I can't find them at the moment.
If I find them I will post a request for your e-mail address, otherwise I will not post a request. Nice to know that a few people own diesel fergies!
Jack M
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