- Thread starter
- #41
How did that gnome get in the picture?
HJ 47 gets a turbo
- Thread starter gswest
- Start date
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- Thread starter
- #42
I fired it up today and drove it around the block. I put a tempory flex pipe on the turbo outlet,, that blew off 100 feet down the road. But what a sound that turbo makes. I love to hear that whine. I guess with a full exhaust the whine will be less noticeable, which is too bad. I need to open the fuel up, but 'm actually not positive which screw is the fuel adjustment screw. So if anyone can enlighten me on where the fuel adjustment screw is, let me know. The boost gauge didn't register much boost which I'm hoping is related to the fuel issue. The EGT gauge got up to maybe 400 to 500 degrees F.
arnott1t
SILVER Star
Your fuel screw is on the back side of the injections pump. I think in one of your previous pics it has some blue paint on it. Maybe that was a turbo glide pic.
Keep your exhaust big and no muffler and there will be plenty of wine. 3" straight pipe is th ticket.
With pyro post turbo I'd keep max EGT's to 1000f or even lower. Pre turbo can go to 1200 or so.
The waste gate could be opening on you to soon as well. It may be adjustable mechanically or you can also by a boost control valve ot turn it up. Depending on the size of the turbo you might not need one at all. Mine is wired shut and I get 15psi. With stock fuel I was at 8-9 at least if I remember. My money is on the waste gate. You could try it with the gate wired shut. But be carefull.
Keep your exhaust big and no muffler and there will be plenty of wine. 3" straight pipe is th ticket.
With pyro post turbo I'd keep max EGT's to 1000f or even lower. Pre turbo can go to 1200 or so.
The waste gate could be opening on you to soon as well. It may be adjustable mechanically or you can also by a boost control valve ot turn it up. Depending on the size of the turbo you might not need one at all. Mine is wired shut and I get 15psi. With stock fuel I was at 8-9 at least if I remember. My money is on the waste gate. You could try it with the gate wired shut. But be carefull.
Tapage
Club 4X4 Panamá
- Thread starter
- #45
I'm wondering if the boost gauge is working correctly. It's installed on the intake tube between the turbo and intake. Turboglide doesn't incourage adjusting the wastegate and say's it's preset at 9-10psi. I'm assuming the fuel is set at the factory setting because I had to cut the wire off it and I can't budge it. I'm letting it sit with some penatrant overnight and hope to turn it tommorrow. Turboglide says to back it off 3/4 turn. Other cruiserheads here have turned it back more than that, I know. I'm going to start at 3/4 turn and see what my temps are and see what the boost gauge says.
- Thread starter
- #46
Thanks for the fuel screw pic. I finally got smart and looked in my 2H manual and saw that the screw I was working with was in fact the right screw. I can't budge it. Tommorrow I'll take the centrifical oil filter cover off and hope to get leverage to turn that screw.
Tapage
Club 4X4 Panamá
Ebery car and conditions are different .. but I turn mine in Tencha almost 3 turns 
- Thread starter
- #48
OK, 3 turns and your EGT's are alright? I'm going to start turning it back tommorrow and I'll post how it goes. What size is you exhaust? Turboglide says go 2 1/2", I may go 3" with no muffler and see hao it sounds. I'd love to hear that turbo spin as much as possible.
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- #49
Do all these 2h engines have this centrifical oil filter assembly (sitting on top of the oil filter housing)? I changed the oil and didn't do anything with this device. I didn't notice anything in the manual as far as servicing the thing.
The centrifugal oil filter was only on early 2H motors, Toyota stopped putting them on the motors sometime in '82. They're pretty simple to service, you'll just need a new o ring. I remember Dingbatt posted a few pics when he serviced his.
- Thread starter
- #51
Thanks, I'll order the o-ring. I can't wait to get the fuel adjusted so I can feel the turbo.
Here's some photos of that filter disassembled.
https://forum.ih8mud.com/diesel-tech-24-volts-systems/209722-2h-centrifugal-oil-filter.html
https://forum.ih8mud.com/diesel-tech-24-volts-systems/209722-2h-centrifugal-oil-filter.html
- Thread starter
- #53
tool for fuel supply adjustment?
Looking at the 2H service manual, they show a tool used with a screw driver to adjust the fuel supply screw. I can see that the nut that the adjusting screw goes thru has holes in it that a special tool fits into. I'm I correct that the screw won't turn unless I loosen that nut. I haven't noticed anyone mentioning this tool when they talk about turning the adjusting screw. The SST # for that tool looks like 09283-76010.
Looking at the 2H service manual, they show a tool used with a screw driver to adjust the fuel supply screw. I can see that the nut that the adjusting screw goes thru has holes in it that a special tool fits into. I'm I correct that the screw won't turn unless I loosen that nut. I haven't noticed anyone mentioning this tool when they talk about turning the adjusting screw. The SST # for that tool looks like 09283-76010.
- Thread starter
- #55
I did what you suggested and it loosened right up. I used a round file and hit it with a big hammer. I've opened it up one turn and my boost gets to about 7-8 psi at full throtle. The EGT's are going up to 800 at that pressure. I'm going to open the fuel up another 1/4 turn and see if the boost goes up and the temps stay reasonable, under 950 F or so. I put in a tiny-tac digital tacometer which is working nicely. Strange that they didn't put tacs in these trucks?
Thanks Arnott1T
Thanks Arnott1T
- Thread starter
- #56
Boost numbers too low, EGT's below max.
Pics of the Tiny-Tac. I turned the fuel screw back 1 1/2 turns and still am not getting the boost above 5 psi and the EGT's are going up to about 600 at 2200 RPMs. The EGT gauge is post turbo so that is maybe 800-850 degrees F. Turboglide says keep it below 500 C. or 932 degrees F. So, My temps are below the max and I can't seem to get the boost above 5 psi. Turboglide suggest not altering the wastegate. Should I keep turning the fuel screw back until mt EGTs get too high?
Pics of the Tiny-Tac. I turned the fuel screw back 1 1/2 turns and still am not getting the boost above 5 psi and the EGT's are going up to about 600 at 2200 RPMs. The EGT gauge is post turbo so that is maybe 800-850 degrees F. Turboglide says keep it below 500 C. or 932 degrees F. So, My temps are below the max and I can't seem to get the boost above 5 psi. Turboglide suggest not altering the wastegate. Should I keep turning the fuel screw back until mt EGTs get too high?
- Joined
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make sure that you are loading your engine when you are setting the fuel and boost levels. Try a long hill in 3rd gear and get the revs up a bit. After a few moments, you should see good EGTs and boost coming on. If not, then add more fuel.
Make sure your diaphragm is healthy
~John
Make sure your diaphragm is healthy
~John
- Thread starter
- #59
Tiny Tach has a website
The tiny tach is fantastic for those of us that didn't have a factory tach. Order it from their website, TinyTach.com (I think). Diesel toyota's get the 6 MM size transducer ($95 i think). Everything comes with it that you need. You connect a transducer to one fuel injection line, that feeds the little computer and it determines the RPMs, regardless of cylinders. You have to connect it to power and ground inside the truck, no big deal! But you have to get the diesel version and the right size transducer. 6 MM for toyo Diesels.
The tiny tach is fantastic for those of us that didn't have a factory tach. Order it from their website, TinyTach.com (I think). Diesel toyota's get the 6 MM size transducer ($95 i think). Everything comes with it that you need. You connect a transducer to one fuel injection line, that feeds the little computer and it determines the RPMs, regardless of cylinders. You have to connect it to power and ground inside the truck, no big deal! But you have to get the diesel version and the right size transducer. 6 MM for toyo Diesels.
- Thread starter
- #60
Thanks Radd Cruiser, we got few hills here in Florida, but when I hold the throtle down and it gets up around 2400 RPMS, then I get the max boost at maybe 7 psi. One of our members said I should adjust the wastegate?? I'm running with a 2 ft. section of flex exhaust pipe off the turbo. It's loud but the turbo sounds fantastic. Even though I'm not noticing much increase in power at this point, I still irrationally feel satisfied,,,,, just for the turbo whine. What's wrong with me?
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