December 8th HAMOM - Moonshine gets a 4BT

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Things were pretty close when I left. All the mounts were done, finishing up the modification to the body for clearance of the yoke/drive line, the rear axle was being put back together and the pinion angle finalized.

Then engine was plumbed and wiring was being finished, all three pedals were in and functioning, its close, very close...
 
Things were pretty close when I left. All the mounts were done, finishing up the modification to the body for clearance of the yoke/drive line, the rear axle was being put back together and the pinion angle finalized.

Then engine was plumbed and wiring was being finished, all three pedals were in and functioning, its close, very close...

Wow, I bet everyone involved is pretty worn out by now. Thats a lot of work!
 
when I left there was... finish getting the pinion angle for the rear.... install rear calipers, bleed brakes, install fuel line and bleed air out, route exhaust and install drive shafts and that was that.

Fun weekend thanks to Ramon for hosting and Johnny for letting us lend a hand :cheers:
 
when I left there was... finish getting the pinion angle for the rear.... install rear calipers, bleed brakes, install fuel line and bleed air out, route exhaust and install drive shafts and that was that.

Fun weekend thanks to Ramon for hosting and Johnny for letting us lend a hand :cheers:

Pinion set and welded, rear brakes and lines installed, driveshaft half complete, fuel lines connected, motor wired and fully plumbed, exhaust finished, floor clearanced for driveshaft, throttle linkage completed, all four tires mounted and rolling, shop and driveway decently cleaned....
The motor wouldn't start due to a lack of injection pressure, hopefully resolved with new lift pump....and we decided to call it a night as to not burn up starter and let the battery charge..
 
Wow! Its amazing what a group of knowledgeable guys can do in a weekend! Awesome! Sorry i couldn't of stayed longer.
 
Pinion set and welded, rear brakes and lines installed, driveshaft half complete, fuel lines connected, motor wired and fully plumbed, exhaust finished, floor clearanced for driveshaft, throttle linkage completed, all four tires mounted and rolling, shop and driveway decently cleaned....
The motor wouldn't start due to a lack of injection pressure, hopefully resolved with new lift pump....and we decided to call it a night as to not burn up starter and let the battery charge..


I was worried about the last part. Was the fuel bled to get all the air out. Older diesels can be very tempermental with any air in the system.
 
First and foremost, I would like to thank Ramon and Emily for hosting this HAMOM. This is the most extensive project I have ever attempted and they are most gracious for hosting.

I would also like to thank each and every ONSC member who came out to help. We ate, we drank, we turned wrenches and had a great time! Here is a list of what was completed:

- Removal of Toyota drivetrain
- Removal of all factory drivetrain brackets
- Swap rear axle to FZJ80 rear
- Design, fabricate and install Cummins motor mounts
- Design, fabricate and install transmission crossmember
- Installation of Cummins drivetrain
- Wiring of motor
- Plumbing of fuel and cooling systems
- Hydroboost conversion
- Clutch system conversion
- Clearance body for rear driveline
- *modification* of firewall and PS footwell for exhaust
- strip 2F
- 1.5 hours of attempted starting

As a couple of you already know, the motor did not start. We are experiencing a fuel pressure issue. I have ordered a new lift pump, which will be here later today. If that does not help, then we will move to the injectors.


Clean worksite ( 1:00pm Friday )

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Mess started ( 2:30pm Friday )

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3:30pm Friday:

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5:30pm Friday:

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Saturday morning ( 9:30am or so ):

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10:00am Saturday?:

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First test fit:

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Fast forward to Saturday evening, after the transmission crossmember and motor mounts were designed, fabricated and now ready to install the motor:

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Motor installed and *mostly* sitting in there by itself:

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Saturday night's crew:

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Sunday morning:

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Bodywork opportunity:

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We got it running on starter fluid only, but that's it. Pretty depressing after so much work, but we'll figure it out and get her going.

Thanks again to EVERYONE who came out and helped!!!
 
I was worried about the last part. Was the fuel bled to get all the air out. Older diesels can be very tempermental with any air in the system.

X2. May be a terribly stupid question, but is there a lift pump to pull fuel up to the injector pump and did you bleed to the injectors. Admittedly, I know relatively little about the 4BT. But as lt1 mentioned, every mechanical (marine) diesel Ive dealt with, including a few cummins models has be bled this way. Cranking wont overcome. Again, maybe this is stupid and youre way past it.
 
Man. I would have loved to baaaad part of this. Huge job. Way to go ladies!
 
You saying this was more extensive than the full body swap? That is amazing!
I wish I could have made it just to see all the :wrench:ing that went on, and drink your beer. ;) I hope Mr. Free represented me well!
Good job all and congratulations Johnny! :clap:
 
X2. May be a terribly stupid question, but is there a lift pump to pull fuel up to the injector pump and did you bleed to the injectors. Admittedly, I know relatively little about the 4BT. But as lt1 mentioned, every mechanical (marine) diesel Ive dealt with, including a few cummins models has be bled this way. Cranking wont overcome. Again, maybe this is stupid and youre way past it.

There is a lift pump, and yes, we primed using the lift pump. Martin sucked fuel up to the lift pump, then we primed using the lift pump handle until fuel was pouring out of the bleeder screw. We then cranked and cracked each injector line until fuel squirted.

I am replacing the lift pump with a new one just to make sure that isn't the problem.

Man. I would have loved to baaaad part of this. Huge job. Way to go ladies!

You saying this was more extensive than the full body swap? That is amazing!
I wish I could have made it just to see all the :wrench:ing that went on, and drink your beer. ;) I hope Mr. Free represented me well!
Good job all and congratulations Johnny! :clap:

Thanks guys! It was a hell of a good time.
 
There is a lift pump, and yes, we primed using the lift pump. Martin sucked fuel up to the lift pump, then we primed using the lift pump handle until fuel was pouring out of the bleeder screw. We then cranked and cracked each injector line until fuel squirted.

I am replacing the lift pump with a new one just to make sure that isn't the problem.

Thanks guys! It was a hell of a good time.

Ok good. I was sure you thought of it, but just in case you guys were pretty ragged by the end of the night it coulda saved you the cost of a lift pump. Or starter :)
Any chance something was left loose or disturbed during the preinstall work on the motor? I can't remember all you did to it. So frustrating when its just one little thing after all that crazy amount of work. Still amazed at all that was accomplished!
 
Ok good. I was sure you thought of it, but just in case you guys were pretty ragged by the end of the night it coulda saved you the cost of a lift pump. Or starter :)
Any chance something was left loose or disturbed during the preinstall work on the motor? I can't remember all you did to it. So frustrating when its just one little thing after all that crazy amount of work. Still amazed at all that was accomplished!

It's possible that something was not done correctly, but I have no idea what would cause this thing to not start.
 
Thanks to everyone who came out, and special props to Martin, Free, and Laura for staying extra late to help Johnny, Emma, and I clean up.

ETA: Also thanks to Meatball for bringing the chickens!!

Big props to my :princess: for tolerating our addiction. And hat's off to the club!!! Great turnout and lots of hands involved on this one.

As far as the troubleshooting, one other reason we thought it might be the lift pump that I don't think was mention was one injector, which we had confirmed was primed, seemed to loose prime at one point. That made us think the diaphragm in the LP might be allowing fuel to run back down the line with gravity.

:beer: R
 
First off, special thanks to Ramon and Emma for putting up with all of us and the debris field was extensive. The chickens on Sat really hit the spot when I needed some fuel to keep my head straight. I'll call later to see what I left (besides the chop saw) behind and when you want me to pick it up.

When Johnny puts it into perspective with that list, the magnitude of what was accomplished is pretty impressive. It was fun, hated my abbreviated stay, you guys are fricken marathon men. Seeing it inside, tucked in nicely enough to have created that foot warmer for his passengers, sits flat, tranny/t-case tucked inside the frame rails, its a beautiful thing.

Regarding the no-start...being a noob to such things, I don't have any true perspective, yet...I did seem like the fuel pressure wasn't what I expected. I think Johnny's hypothesis of the fuel pressure not being great enough to open the injectors, flowing through the return lines instead makes a lot of sense to me. It seemed like it wanted to start, just couldn't sustain as one would expect in a fuel starvation condition.

It's amazing what a bunch knuckleheads can accomplish, and I only set myself on fire 3 times (thanks Eric for the extinguisher), only one flesh wound (in the first 15 min on Sat morning) and learned a great deal working with everyone on this project. Cool stuff for sure, glad I was able to play a part in the effort...:beer:
 
First off, special thanks to Ramon and Emma for putting up with all of us and the debris field was extensive. The chickens on Sat really hit the spot when I needed some fuel to keep my head straight. I'll call later to see what I left (besides the chop saw) behind and when you want me to pick it up.

When Johnny puts it into perspective with that list, the magnitude of what was accomplished is pretty impressive. It was fun, hated my abbreviated stay, you guys are fricken marathon men. Seeing it inside, tucked in nicely enough to have created that foot warmer for his passengers, sits flat, tranny/t-case tucked inside the frame rails, its a beautiful thing.

Regarding the no-start...being a noob to such things, I don't have any true perspective, yet...I did seem like the fuel pressure wasn't what I expected. I think Johnny's hypothesis of the fuel pressure not being great enough to open the injectors, flowing through the return lines instead makes a lot of sense to me. It seemed like it wanted to start, just couldn't sustain as one would expect in a fuel starvation condition.

It's amazing what a bunch knuckleheads can accomplish, and I only set myself on fire 3 times (thanks Eric for the extinguisher), only one flesh wound (in the first 15 min on Sat morning) and learned a great deal working with everyone on this project. Cool stuff for sure, glad I was able to play a part in the effort...:beer:

Big props to you Jerry for your pre-work on the crossmember as well as taking it to your casa for final welding - freeing up some resources here. Also, HUGE thanks for the use of the plasma and chop saw. Couldn't have accomplished what we did without them!!

Glad you didn't wind up in the burn center!!

I can bring the saw over any time, or if you want to wait until we finish our cleaning sorting of the garage to see if there is anything else that's fine too.

:beer: R
 
I left a big fire extinguisher. If yall did use it can i get it back?
 
Big props to you Jerry for your pre-work on the crossmember as well as taking it to your casa for final welding - freeing up some resources here. Also, HUGE thanks for the use of the plasma and chop saw. Couldn't have accomplished what we did without them!!

Glad you didn't wind up in the burn center!!

I can bring the saw over any time, or if you want to wait until we finish our cleaning sorting of the garage to see if there is anything else that's fine too.

:beer: R

We all did what we could to get the mission complete, thanks for the kind words. It was really impressive how everyone had Johnny's vision in mind as everyone took on the different tasks, having his "intended use" factor in mind at all times.

Gotta love the plasma, made quick work of all those old mounts. Johnny and Martin were much braver than I was when it came to "shaving" the old welds off the frame.

I didn't want to take things that might still be needed since I had no immediate need for them. I can pick up or you can drop off and we can share a beer and talk about stuff we didn't have time to discuss this weekend...:beer:
 

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