BJ74: Draining Fuel Filter of Water/Sediment (1 Viewer)

Joined
Feb 17, 2021
Messages
3
Location
Vancouver Island, BC
Hi, absolute beginner here.

Starting to work on my new-to-me 1988 BJ74 RHD turbo... I'm used to working on old motorcycles, not trucks, so this is me learning to wrench on engines bigger than 650cc.

The fuel-filter light came on and I wanted to address that today along with an oil change. Oil change was fine but the fuel filter release valve at the bottom didn't release much of anything. I undid it 2 1/2 turns as per the manual, nothing. Ending up taking it all the way out, still nothing. A drop or two of water came out but nothing significant warranting a tray.

Is this a sign that the indicator is misreading, or am I missing something?? I'm wary of driving it much before figuring this out to keep from causing any damage.

Helpful thoughts?

Cheers!
Em
 
Joined
Feb 24, 2005
Messages
648
Location
boulder, co
They tend to get bogged up with crap. If you’ve got a scratch all or small screw driver, jab it up in there when the screw is completely out. Usually that will break the seal & let it drain properly.
 
Joined
Feb 17, 2021
Messages
3
Location
Vancouver Island, BC
Thanks gr8ful! I'll be sure to do this today, but the problem has worsened...

After attempting to drain the sediment I continued on with an oil change (for a small victory) with the plan to return to the fuel filter afterwards.
I ran the engine to check for leaks and all ran smooth. After a half hour I went to drive it around the block and it started sputtering, until finally stalling out halfway down the block.

Now, I'm assuming that air got into the fuel lines while trying to empty the sediment?

Looking for a well labeled legend of the RHD engine bay to make this as smooth as possible!

Cheers!
 

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