new lx 5 speed top plates

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tstepp920 said:
Oh the price is understandable. Its just that the total cost of building my dream rig keeps climbing. I just paid, gladly, $425.00 for a set of jump seats that need a complete refurbishment. The thought of having 5000-5200 in a transmission alone is a LARGE pill to swallow.
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I hear you, and agree for some it's a little out of reach. For the record, Georg built my setup with a new 5 speed+ 38mm split case and brake, and looking back on it, if he had an option of the 40 top cover as an option in the 600-800 range, I would have pulled the trigger, versus an awkward shifting experience I would have to live with for years
 
tstepp920 said:
Oh the price is understandable. Its just that the total cost of building my dream rig keeps climbing. I just paid, gladly, $425.00 for a set of jump seats that need a complete refurbishment. The thought of having 5000-5200 in a transmission alone is a LARGE pill to swallow.
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A new 5 speed costs 2,500.00 range plus top plate. 3,300.00 range
 
ERNRAM said:
I hear you, and agree for some it's a little out of reach. For the record, Georg built my setup with a new 5 speed+ 38mm split case and brake, and looking back on it, if he had an option of the 40 top cover as an option in the 600-800 range, I would have pulled the trigger, versus an awkward shifting experience I would have to live with for years
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Unfortunately for me George lives on the other side of the country and shipping that hunk of glory would be xpensive
 
ERNRAM said:
My guess would be about $799 starting off at the beginning and ramp down to $549 to 599 range.

There is a lot of secondary CNC that will be needed and angle drilling in at least 2 spots
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I could do it in two set ups in one of my 5 axis Haas VMC. ;)

But in all seriousness, Ive spent the last year reverse engineering gear boxes, modeling them in solidworks and doing 5 axis gear milling to fill small spares orders for customers with obsolete equipment. Let me know if you need any help. A model is great but you need a drawing with bore sizes, locations and tolerances checked off the actual cap and mating components to inspect to. I think from reading another thread there are more differences than just the cap, one or two small parts IIRC.
 
ryanwk628 said:
I could do it in two set ups in one of my 5 axis Haas VMC. ;)

But in all seriousness, Ive spent the last year reverse engineering gear boxes, modeling them in solidworks and doing 5 axis gear milling to fill small spares orders for customers with obsolete equipment. Let me know if you need any help. A model is great but you need a drawing with bore sizes, locations and tolerances checked off the actual cap and mating components to inspect to. I think from reading another thread there are more differences than just the cap, one or two small parts IIRC.
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Agree on the tolerances, but the scan is so good that I can by deduction estimate small deltas. For example there are about 6 shaft holes that when I measure them in the CAD are 15.92- 15.99mm in diameter. The Toyota exploded view calls out for a 16mm plug. So I can tweak the CAD to enlarge the hole to exactly 16.00mm. I measured a few of these in the real part i borrowed and they came in at just under 16mm.

If i look at dimension between two holes it becomes very obvious what the center to center spacing should be. For 1 case I measure 30.95mm, therefore no sane engineer would have made this a nominal dimension, so should be 31mm.

My plan is to send the CAD to Orange and have him measure a top cover as double confirmation


See post in the 90-100 for info on the two parts.

20170316_175438.webp
 
ERNRAM said:
Agree on the tolerances, but the scan is so good that I can by deduction estimate small deltas. For example there are about 6 shaft holes that when I measure them in the CAD are 15.92- 15.99mm in diameter. The Toyota exploded view calls out for a 16mm plug. So I can tweak the CAD to enlarge the hole to exactly 16.00mm. I measured a few of these in the real part i borrowed and they came in at just under 16mm.

If i look at dimension between two holes it becomes very obvious what the center to center spacing should be. For 1 case I measure 30.95mm, therefore no sane engineer would have made this a nominal dimension, so should be 31mm.

My plan is to send the CAD to Orange and have him measure a top cover as double confirmation


See post in the 90-100 for info on the two parts.

View attachment 1422094
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TOYOTA LAND CRUISER 40 BJ42L-MCW - POWERTRAIN-CHASSIS - GEAR SHIFT FORK LEVER SHAFT MTM | Japan Parts EU

Screenshot_20170316-180753.webp
 
ERNRAM said:
Agree on the tolerances, but the scan is so good that I can by deduction estimate small deltas. For example there are about 6 shaft holes that when I measure them in the CAD are 15.92- 15.99mm in diameter. The Toyota exploded view calls out for a 16mm plug. So I can tweak the CAD to enlarge the hole to exactly 16.00mm. I measured a few of these in the real part i borrowed and they came in at just under 16mm.

If i look at dimension between two holes it becomes very obvious what the center to center spacing should be. For 1 case I measure 30.95mm, therefore no sane engineer would have made this a nominal dimension, so should be 31mm.

My plan is to send the CAD to Orange and have him measure a top cover as double confirmation


See post in the 90-100 for info on the two parts.

View attachment 1422094
Click to expand...

Very nice and a great start! Do you have a mating trans handy? I would double check those dimensions against the mating components because while no sane engineer would pick a weird number over an even number, when youre working with gears pi, sin(x), cos(x), etc and throw you some weird numbers. Id also check the mfg specs on the mating components and Machinery's Hand book for tolerances as your part maybe at one end of the spectrum. Also to avoid stack up, measure and dimension from one datum whenever possible. Good luck, Ill be following!
 
With respect to tolerances, since the factory drawings are impossible to access, I am going to assume about +/- 0.05mm for now.

The only reference point I have for now are based on the Toyota transmisson FSM internal gear clearances. Rotating shafts diameters seem to have about 0.07mm.

20170316_185434.webp
 
iptman said:
I sense a collaboration coming on! :bounce:
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Like I said, even if I fail, which hopefully I won't, it means that I will have helped get it closer to reality and someone can take it across the finishing line. That is the entire purpose of the forum, to learn from each other and progress the technology or document the history so the next gen of enthusiast can carry on the tradition.
 
Ernie I hope you know how excited I am about this ........

I do have a 40-series top cover at the shop along with a couple of spare 60-series top covers.
Getting measurements won't be an iSue at all.

Georg @ Valley Hybrids & Cruiser Brothers
 
Georg,

No problem, I am excited too. I know it a limited demand, but at some point gas prices will rise and people will once again look for opportunities to save money while still enjoying their cruisers. Also the 5 speed put less stress on the engine by reducing RPMs, so engine life increases as well.

I think by definition most LC folks are environments since the vehicle allows them to go to the most isolated locations to get out of the cities and enjoy the beauty and rawness of nature and quiet bonding with family. So getting 5 speeds into the hands of more and more folks are complimentary in so many levels.

I'll send you the latest 3D CAD STEP file and create some high level drawings you can markup based on your measurement. From there, I'll tweak the CAD further and I can print out a part out of ABS plastic and I'll send to you so you can assemble in the shafts to check functionality. Once we have confidence from there, I'll proceed with tooling based on what I get back on the first pass quotes.

Enjoy the Mason run and tell Joe I say hi.

Thanks
Ernie
 
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