Correct Procedure to Change Fuel Filter?

Post by **JORDS** » Thu Oct 16, 2008 7:08 pm

G'day all,

Bit of a newby to a diesel TD42 - What is the correct way of changing the fuel filter?

Thanks,

Post by **macneil** » Thu Oct 16, 2008 8:08 pm

take it off.. put some diesel or grease around the seal of the new one.. screw the new one off then pump the little thing ontop of the filter..

once that is rock hard..(will take ages) u can crank it over might want to crack the injectors to get fuel the whole way but i never have..

Post by **canuck** » Fri Oct 17, 2008 2:36 am

Open up the plastic bleed screw on the side of the primer/bleed pump. Otherwise, you will be pumping for ever with zeo results. Hold a small can under it to catch the diesel as you pump. Once you have clear diesel (no air bubbles) tighten the screw. Clean up any spilled diesel from the engine bay and start her up.

Post by **Tomo_89** » Fri Oct 17, 2008 4:30 pm

just fill up the new filter with clean diesel before you fit it and you shouldnt even have to pump it

Post by **rogantriton** » Fri Oct 17, 2008 6:24 pm

newby at this too, so you take off the old one, fill the new one with clean diesel put it on then just start her up? or do you have to pump the knoby thing ontop aswell?

Post by **coxy321** » Fri Oct 17, 2008 6:51 pm

I just changed mine over, pumped a few times on the pumpy thing. Started the truck, it stalled. Started it again - no worries!!!

Post by **sw1** » Fri Oct 17, 2008 7:04 pm

i find it easier to take the filter & mounting plate out of the engine bay & put it in a vice.
which means i have disconnected both fuel lines. a set of ryco quick disconnects on ether side of the filter makes the process real easy. have the one way end on the pump side and tank side.
once the new fuel filter is on the mounting plate and back in the engine bay i reconnect the line from the tank. i pump the plunger until un-aerated diesel comes out the outlet side of the filter.
then reconnect the fuel pump and pump the plunger again till you cant press the plunger down.

this is important as diesel injection pumps do not like air at all. you need to make sure you get as much air out of the system as possible. an extra 5 minutes of effort may save potential damage & many $$$

Post by **canuck** » Sat Oct 18, 2008 2:51 am

sw1 wrote:this is important as diesel injection pumps do not like air at all. you need to make sure you get as much air out of the system as possible. an extra 5 minutes of effort may save potential damage & many $$$

X2 I always bleed all the air out. You will too after paying to have a pump rebuilt.

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Correct Procedure to Change Fuel Filter?

Correct Procedure to Change Fuel Filter?

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