Can someone explain the fuel filter light? HJ47 Land Cruiser

[vincent85]

I like the sensor for the filter, but then again I hear allot of guys complaining about those having issues sometimes. I think taking the old approach and using the Delphi and putting it in the engine bay is the way to go from what I see. You should be periodically checking in the engine compartment anyways for routine maintenance so you can visually see the water every time you go in the engine compartment.

I really like the dual Delphi setup, I found one here which is a single with a hand primer: http://www.ebay.co.uk/itm/DIESEL-FU...tEquipment_Accessories_SM&hash=item3f3cae9cf1

I am assuming I can take that singular one with the hand pump and adjoin it in conjunction with another bowl.

I also found the already dual conjoined bowl setups, but none that are dual with the primer pump. I am not sure if you can put the primer pump on that.

If you guys know that would be great, if not I might called Delphi and ask them.

So to clarify if I use the double bowl setup, the fuel line would connect directly from the fuel tank straight into the water separators and then into the main fuel filter near the mechanical fuel pump. Correct?

Thanks for the help, this is going to be a nice setup. I hope this clarifies for others people inquiring who search on this topic as well on the forum. I know it has for me.

 

[roscoFJ73]

I am assuming I can take that singular one with the hand pump and adjoin it in conjunction with another bowl.

I also found the already dual conjoined bowl setups, but none that are dual with the primer pump. I am not sure if you can put the primer pump on that.

If you guys know that would be great, if not I might called Delphi and ask them.

So to clarify if I use the double bowl setup, the fuel line would connect directly from the fuel tank straight into the water separators and then into the main fuel filter near the mechanical fuel pump. Correct?

You must have posted while I was posting. Yes ,you can piggy back the filter and water separator.see my pic on the previous pages.
And yes,the fuel line goes to the water seperator(or pre filter) 1st.

Im wondering if you could replace the plastic drain plug at the bottom of the delphi unit with the plastic plug that incorporates the sensor on other types and have the best of both worlds.

 

[vincent85]

Okay so:

I can have a dual bowl setup that receives fuel from the fuel tank (If I can get the primer pump on that), if not then singular which filters to the main filter, which filters to the fuel injectors (In that order). Sorry to restate myself I just want to be crystal clear on that setup to makes sure I am tracking what you are saying.

Also I talked to a member that posted originally about putting it in the engine bay and he said this and I quote "Engine bay sounds as good as any .. just keep in mind the bleed process if you put it hi in the engine bay, coz 2H are pretty sensitive to air in the line". I am not sure, because I have not done this, but is this of concern?

Also that is a good point about the plastic drain plug from the Delphi and finding a way to adapt the sensor. I will have to play with that once I get to that point in the build.

 

[roscoFJ73]

Fuel always go to the water sedimenter or pre filter 1st. The main filter is always last before the fuel goes to the injection pump.
It looks weird in the pics because the main filter appears to be closest to the fuel tank,but look closely and you can see the fuel lines crisscrossing.

All diesels are sensitve to air in the fuel lines. All diesels have the primer high so you can reach it. I dont think it matters being high ,because once the fuel is going downhill it is creating a vaccum or syphon.

 

[gswest]

I'm having similar issues with my Troopy. The truck runs great but isn't charging the battery. The longer drives tend to kill the battery. The filter light goes on at idle and goes off at running speeds. I put on a solid state voltage regulator after having an issue with the mechanical OEM regulator. I did get the OEM regulator adjusted, so I'm thinking about re-installing it. My alternator checked out fine, so I'm trying to trace down the charging issue. The battery is new. The starter has been serviced w/ new brushes.

 

[Crick60]

Possibly your negative to chassis strap Gswest? Fusible links or charging fuse if there is one?
It does sound like the reg but I'm also sus about the alternator, it may be worth getting it checked again after you reinstall the original reg.

 

[gswest]

Thanks, Crick60. I watched the shop spool my alternator up and get it to charge, the so that's not the issue. The regulator is a new solid state unit, but I'm going to re-install the original mechanical unit to see if that makes a difference. The guys at the Alternator shop asked me to bring the truck up to them once I re-installed the alternator, so they can check out the wiring, ignition switch , voltage regulator, etc. I'm electronically ignorant, but when this is all figured out, I will know how to diagnose these issues in the future.

 

[Paraglider]

I like the sensor for the filter, but then again I hear allot of guys complaining about those having issues sometimes. I think taking the old approach and using the Delphi and putting it in the engine bay is the way to go from what I see. You should be periodically checking in the engine compartment anyways for routine maintenance so you can visually see the water every time you go in the engine compartment.

I really like the dual Delphi setup, I found one here which is a single with a hand primer: DIESEL FUEL WATER TRAP SEPARATOR ASSY CAV 296 C/W HAND PRIMER & DEEP BOWL TYPE | eBay

I am assuming I can take that singular one with the hand pump and adjoin it in conjunction with another bowl.

I also found the already dual conjoined bowl setups, but none that are dual with the primer pump. I am not sure if you can put the primer pump on that.

If you guys know that would be great, if not I might called Delphi and ask them.

So to clarify if I use the double bowl setup, the fuel line would connect directly from the fuel tank straight into the water separators and then into the main fuel filter near the mechanical fuel pump. Correct?

Thanks for the help, this is going to be a nice setup. I hope this clarifies for others people inquiring who search on this topic as well on the forum. I know it has for me.

I know this is an old thread, but I'm new with my 2h engine (1982 Oct) on my HJ47. I keep having fuel issues (pump the filter and get the fuel going; engine starts and runs for a couple minutes and then stops; repeat the process and the same thing). I checked the pre-filter once before and didn't seem to have any water in it but I need to do that again. If none is found, any ideas? Also, the pics you have are of the pre-filter, right? (with the visible fuel). So I can replace the original pre-filter on my HJ47 2h 1982 Oct. manuf. Troopy with the Delphi? Thanks for any help.

 

[cuteo100]

Perhaps air is between the pump and injection pipe? Try bleeding air from the injection pipe while activating the starter motor also.

 

[Paraglider]

Perhaps air is between the pump and injection pipe? Try bleeding air from the injection pipe while activating the starter motor also.

Thanks. I'll give that a try.

 

[Tapage]

If you suspect air in the line ( which your 2H it's very sensible ) start trouble shooting backwards .. from the IP to the tank.

Start with a fuel ( diesel ) can and clear hose to feed directly the pump then goes to the end ..

 

[Paraglider]

If you suspect air in the line ( which your 2H it's very sensible ) start trouble shooting backwards .. from the IP to the tank.

Start with a fuel ( diesel ) can and clear hose to feed directly the pump then goes to the end ..

Update: I bled the fuel filter and then went thru each injector while turning the motor over. Fuel was coming out the bleeder valve consistently at the filter and diesel came out each of the injectors (not spraying all over or anything but still, it was diesel coming out and not air. It still didn't start. My impression is that even though it seems like it should be getting fuel, it's not. It all seems strange to me because before I left for 2.5 months, it would go 1.5 to 5 hours w/o stopping, but each time, there was air coming out the bleeder valve and it started right up after I bled it. After returning, it started after I bled the air out again but now, there doesn't seem to be any air but it won't start at all.

 

[Paraglider]

If you suspect air in the line ( which your 2H it's very sensible ) start trouble shooting backwards .. from the IP to the tank.

Start with a fuel ( diesel ) can and clear hose to feed directly the pump then goes to the end ..

Would you still suggest going from a diesel can and clear hose directly to the pump based on what I have mentioned? So directly to the pump, not the filter, right?

 

[Tapage]

you can't tell if you have air on the line cracking the injectors .. I mean would need to be very bad so you to tell .. but yes I would start directly to the IP ..

 

[superdupercoope]

I'm getting oil somehow on my sedimenter. Do I need to open and clean something? I tried bleeding and smells like diesel.

 

[roscoFJ73]

Looks like a fuel leak to me from that where the hose clamp is. That type of clamp loses its strength over time, so I would get a new one. The hose also looks ancient.

The normal way of maintaining these is to undo the bolt at the bottom which is a plug and drain it into a bowl and inspect the contents for water. You may have to open the bolt at the top to help with drainage.

 

[D0g]

I swapped mine out for one of these ,its much better than the stock one.
Amazon product ASIN B000N9FYBI