nab856
SILVER Star
Great DIY subject! Pictures and description of your approach? You reminded me I have a set of injectors that need help.
What did you work on tonight?
- Thread starter Dumpolina
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
Didn't get too many pics.
Pretty much followed the FSM. Pulled the air intake/MAF/hose, throttle body, EGR, and upper intake manifold to get at the fuel rail. Almost everything is relatively straightforward except for one long bolt and the two nuts on the upper manifold that require crawling underneath with enough extensions and a swivel end to reach them. There's not much room to work and the swivel head always wants to flop over instead of hit the targets. I stuck some masking tape around the swivel to keep it relatively on target but still able to swivel.
Once I had the injectors out they got a quick wipe for the bulk of external buildup, removed the old rubber parts, then they went into the ultrasonic (water at 160, with Dawn dish soap) for 1 hour. I changed the water after the first 30 mins. I didn't try to hook up some kind of power to pulse the injectors while they were in the cleaner, but they seemed like they came out pretty darn clean.
Labeled every connection I disconnected with masking tape and/or sharpie. Again mostly straightforward. There's two vacuum connections under the upper manifold that might be easy to miss, but they're actually accessible with the manifold mounted.
So, while labelling every connection fastidiously, I came upon the throttle body coolant lines, which were wet with coolant. I decided, "They're so wet the tape won't stick, but I won't forget those!"
Famous last words. I forgot them.
Also discovered that an injector was spraying fuel out the top. The O-ring on top of the injector got smushed when pushing it up into the rail, so I had to re-use one of the (thankfully not rotted) originals.
So, today I got to do everything I did yesterday all over again. I guess I liked it that much I felt like doing it twice.
Check your work, I guess, is my lesson for this project. Be methodical and check that work.
Edit: Finally back together, no fuel leaking, all the throttle body cables seem to be back where they were, and the thing is running noticeably better! Noticeably quicker off the line and sounds like it loves it. Just have to tighten the EGR pipe nut (it's 32mm, but I used vise grips, there's probably not enough room for a wrench. It's on the firewall side, I heard one person even took the hood off to get to it.) and everything will be back to baseline. But that one can wait.
Last edited:
I remember doing this on my 80 like 3-4 times lol. Had one bad injector… you guessed it #6
nab856
SILVER Star
I have had luck using petroleum jelly placed on the O-ring. Insert the injector into the fuel rail. Rotate the injector. If the O-ring is pinched, the injector will bind.
nice job amigo! All that work is worth it if you're feeling improved butt dyno feedback
. That coolant passage under the throttle body is something quite a few 80 owners bypass in the warmer climates. It's not cold enough in NM which requires the heating up of the TB during winter in order to prevent frost buildup. I need to pull my #6 to see why that cyl is throwing misfire codes. I don't have a HG leak so I'll concentrate on the injector. It was rebuilt 15 yo when I did the HG project so i'm a little surprised if it ends up being the culprit. All that work for injector pulling is such a PITA!
These struts plus new tires and an alignment have made my 18 year old grandma car with 175K miles feel like a new car.
nab856
SILVER Star
Got a new compressor wheel for this turbo build project. I wanted to show the parts simplicity of a turbo before I assemble it today.
A 120-year-old idea that is still relevant today.
A 120-year-old idea that is still relevant today.
nab856
SILVER Star
The turbo is together. It spins/whistles as it should!
There's no mystical voodoo here. Same rules as any rotating assembly: Clearances and mass balance.
Last edited:
Mauser
Supporting Vendor
After spending around $4500 buying tires for 4 wheeled vehicles in the last 4 months (still need to buy tires for my LX), I decided to give one of the 2 wheelers some love. She got a new air cleaner, seats, front tire will be mounted today and she's getting a tune.
Looks great!
Mauser
Supporting Vendor
Making leather covered bibles for the kids for Easter. Designed, cut, dyed, and started stitching the first one yesterday. 3 more to go. Cut with the laser.
nab856
SILVER Star
Worked on the dent today.
The dent just after it happened.
Removed the quarter trim panel, the seatbelts, and speaker. This allows access to the dent.
The tool used for this stage in dent improvement.
Here I am using the tool
The progress so far.
A vast improvement! Now he can get the dollys and hammers going.
The dent just after it happened.
Removed the quarter trim panel, the seatbelts, and speaker. This allows access to the dent.
The tool used for this stage in dent improvement.
Here I am using the tool
The progress so far.
A vast improvement! Now he can get the dollys and hammers going.
Last edited:
This is on the T-100, correct?
Making good progress!
Making good progress!
nab856
SILVER Star
A different perspective
You can tell where it still needs some work by looking at the light reflections.
nab856
SILVER Star
Made more progress on the T100 this weekend
Replaced the bent U-Bolts and mangled shackle. The leaf spring alignment bolt was also replaced. While the back end of the truck was on jack stands, the wheels were rotated a full 360 degrees to test the axle assembly for smoothness of rotation. The wheels rotated easily with gentle pressure from one finger.
Replaced the bent U-Bolts and mangled shackle. The leaf spring alignment bolt was also replaced. While the back end of the truck was on jack stands, the wheels were rotated a full 360 degrees to test the axle assembly for smoothness of rotation. The wheels rotated easily with gentle pressure from one finger.