Diesel FJ40, 1974FJ

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Hydroboost system is complete....took some work but i got it...

This is the original pin that connects the brake booster and brake pedal.



With the hydroboost system, i needed a different pin to make it work since this system had a different arm.



This is the original LC pin in the hydroboost system arm. Hard to see in the picture but the pin is far to small and its too wide to actually reuse. so i had to turn a new pin that would work..



new pin:

 
This new pin will not use the cotter pin design, rather it is threaded and i have a ny-loc nut for it(3/8th 16). the first shoulder past the threads is for the brake pedal, the second is for the hydroboost arm(not turned to the exact size to allow it to move side to side, keeps it from binding). then the large shoulder with the flat sides is for holding the arm on and for holding while i tighten the nut, and ofcoarse the last section is to hold the brake pedal spring. Works great! very happy..



 
Well fellas, I got a little creative on my exhaust mounting flange. The hy35w has two different turbine housings depending on the year. Mine has a 4.5" opening that a 45* elbow bolts too. This elbow reduces to a 3.5 exhaust. Problem here is that the elbow only accepts a 3.5 exhaust with a v-band flange that is almost impossible to come by. I could order a downpipe for the dodge year turbo i have and that would give me the flange but it is way too expensive.

So instead, i took the lathe and came up with this...



This is the elbow that my new flange will replace...



you can see how it has the same v-band flange like the elbow does so it can be mounted directly to the back of the turbo.

 
The flange will reduce the 4.5" opening on the exhaust housing to a 3.5" dia. I left some on the flange to have a nice weld shoulder. The inside of the flange is tapered as to not induce alot of turbulence.





here is how it fits on the housing..



with the band on, you can see the transition from 4.5" to 3.5" here.

 
look at hovis gettin all fancy on us...


malphrus
 
Hydrobooster

1974FJ said:
This new pin will not use the cotter pin design, rather it is threaded and i have a ny-loc nut for it(3/8th 16). the first shoulder past the threads is for the brake pedal, the second is for the hydroboost arm(not turned to the exact size to allow it to move side to side, keeps it from binding). then the large shoulder with the flat sides is for holding the arm on and for holding while i tighten the nut, and ofcoarse the last section is to hold the brake pedal spring. Works great! very happy..



Click to expand...

I like what I see here. Some real good thinking/planning going on here. It is a real help for me to see what you are doing with this hydroboost.

I recently bought a 1983 Chev pickup with the 6.2 diesel and am planning to scavange a lot of parts off it for my 1971 FJ40, 6.2/700R4/hydroboost and anything else that will work for me.

Is that a GM hydro unit? Kinda looks like it. It is hard for me to see up under the P.U. dash but it appears that the rod end is similar. The hydro mounting plate is different, but the rest seems the same. If it is then I'm going to have to come up with a pin similar to what you made or brainstorm something else (I'm not a machinist).

Keep up the good work and the pics coming.

Don
 
As of today, all three of my pedals are accounted for!!!!
I got my clutch master cylinder buttoned up. The master cylinder im running is for a dodge cummins truck. Reason for doing so is b/c the fj40s MC isnt large enough for the dodge clutch and throw-out bearing im running. This dodge MC is a 7/8th bore.
It was fairly easy to bolt up, it didnt have the same bolt pattern as the cruiser obviously but the shaft would work as is. this dodge MC has two studs coming out of it, which is completely different that the land cruisers. So i made a plate that would allow me to bolt the dodge MC to it then be able to bolt both the plate and dodge MC to the firewall via the three original mounting holes.

Firewall,



Mounting plate (the paint looks like crap b/c i milled this out with raw steel, i mean i could have cleaned it up.........:rolleyes:)



The back side(hole milled to allow for the stud of the MC and its washer and nut)



The 7/8th bore Dodge MC. That rubber boot came off the Land Cruiser MC.....now thats clutch..

 
Now for the throttle.
If you have seen the fj40 pedal assembly you would understand the complications of making it work for something other than the LC carbs. I was able to come up with something that works well. I picked up a throttle cable kit from the "ricers" section of autozone that was perfect! I also picked up a 1/2 rubber hose to cover this braided hose because the hose is really close to my motor and starter.



This black plastic piece comes with the kit and works PERFECT for the original bracket that comes off the injection pump of the 4bt.



The bracket i made off the firewall to hold this throttle cable.



Ready to roll the coal...

 
Two Thumbs up for Georg (Orangefj45)!!!:cheers:
Thanks Bud for the extremely fast shipping and your time and effort to get me those bushings.

I got my Fj55 springs mounted today. I had to order some bushing so i could run the factory(fixed) spring pin with the fj55 leaf springs.

I wanted to run my 5/8th bolts on my shackles so i ordered bushing to make that work.

I got 8 total bushings:
4x #289-55-C
4x #289-55-A

I will have pictures later. But i took the shackle hanger and rotated it around so i wouldnt have to run a 6" shackle and have a extremely soft ride. I really wanted the long shackle(so much so that i even made them already) but decided that with the hardtop on and people in the back at times(not to mention trail gear and luggage) that it would be way to soft and just dangerous for the road. Once i flipped the hanger around, i actually didnt get as good a angle as id hoped b/c its now almost straight up and down. But i tell you, these fj55 springs are SOOOOFT..... I stood on the receiver hitch and it settled some so im gonna wait to see once i get everything on the cruiser(seats, cage, tirecarrier, hardtop...) to see what the shackle angle looks like.
 
glad you got those 55s on already. now get some pics up.


malphrus
 
More angle would be nice. Here is my 55 springs with 6 1/4 " shackles It end around the 45 ish degress.

It has the hard top. the jump seats(gonna be remove) few parts laying in the bed. and stock cage. It is really soft. going to look in to shocks know. I was planing on putting 2 of my tires in the rear to see how much more it would go down

Axleswap032.jpg


Axleswap034.jpg
 
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