Author Topic: '87 D50 4x4 Diesel Build  (Read 2434 times)

na3s

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #30 on: October 27, 2018, 08:45:52 PM »
Its been a fruitful week.

After striking out everywhere I looked, I reached out to Truck Monkey Garage in the UK to see if they might have, or be able to source, a 4D56t > V5MT1 bell housing; I follow them on instagram - https://www.instagram.com/truckmonkeygarage/

As it turned out, that had one on hand, posted it on Ebay, I bought it on Wed, and it arrived Fri afternoon from the UK - https://www.ebay.com/itm/Gearbox-Bell-Housing-Mitsubishi-V5MT1-4-K74-4D56/264004390024?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

I placed my order with a S Korean vendor for my brand new D4BF crate motor and am told it should be on a ship setting sail within the month. I'm fairly certain I have everything figured out regarding importing it without too much headache, I hope.

Yesterday I was able to take advantage of Pick-N-Pull's 50% sale to grab a complete locker/4.636 rear axle out of a '99 MS w/3.5 along with the hubs, calipers, brake lines, parking brakes/cables, compressor, and switch for only $126!




I now have 2x MS locker/4.636 rear ends from vehicles w/3.5s. With the rarity of this configuration, replacement diaphragms, and the fact that they're both from junk yards, I figured spares might be handy/valuable.

I haven't had the opportunity to pull the hubs and measure the shafts/count the splines to check for myself, but can anyone verify whether they'll be 9" or 9.5" gears?

Its my understanding that all leaf spring MS ('97-'99) are 9" rear ends.

However, I've also read that all leaf spring MS ('97-'99) are 3.0 and that all 3.5 M/MS are mated with 9.5" rear ends?

Does 3.5 always equal 9.5" or are the oddball high trim '99 MS w/3.5 an exception with 9"?

Also, on both of these vehicles, I was unable to locate the 'locker ECU' mentioned in this write up on 4x4wire - http://www.4x4wire.com/mitsubishi/tech/factory_locker/

Part # MN171302

I also see them listed on ebay by international sellers:

https://www.ebay.com/itm/control-Unit-Mitsubishi-Pajero-IV-V80-3-2-DI-D-MN171302/282474033485

https://www.ebay.com/itm/MITSUBISHI-L200-MK4-Rear-Differential-Control-Module-MN171302/121852937393?epid=1816241637&hash=item1c5f0044b1:g:DewAAOSwPcVVt1XJ:rk:6:pf:0

Are they necessary?

Did the MS come with them, if so, where on the truck are they located?

Both the 'R/D Lock' switch on the dash and the compressor on the rear frame cross member were wired into the main loom on both of the MS I pulled the rear ends from so I wasn't able to trace the wires. I can't imagine it'll be too difficult to wire the switch and compressor up....

I was going to pull the matched 4.636 front diff as well but decided not to as it was equipped with the vacuum operated CAD system I'd like to avoid in order to keep the truck as simple as possible.

I've manual Aisin locking hubs I'll be running, and based on my reading, they should allow me to run a front diff devoid of the CAD system without issue, am I correct in that assumption?

Based on my research a front diff from a '00-'04 MS should yield the 4.636 gears, 8"/high pinion, and be CAD free combination I'm after... Can anyone definitively confirm?





« Last Edit: December 27, 2018, 01:35:23 AM by na3s »

cdalejef

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #31 on: November 01, 2018, 07:16:15 PM »
Subscribed! You're going to love this motor!

I'm Jeff@QuadShop on Expedition Portal with the D4BF Mazda.
« Last Edit: November 01, 2018, 07:17:59 PM by cdalejef »

na3s

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #32 on: November 01, 2018, 07:46:17 PM »
Thanks Jeff, your info has been super helpful. I'm surprised by how few have done this swap, making any first hand knowledge really valuable.

Based on your feedback, I'm feeling more and more confident the 4.636 gears will be the ticket for my build. They'll allow me to cruise 70 mph while spinning +/- 2,850 rpm while still maintaining plenty of grunt to haul/tow/crawl/etc.

Speed/RPM based upon '89 Mazda B2600i w/4.30 gears, 31" tires, and 5mt (3.370/2.158/1.396/1.000/8.160), http://mazdafanclub.com/download/b2200_1992.pdf:


Speed/RPM based upon V5MT1 w/4.636 gears and 31.7" tires (3.918/2.261/1.395/1.000/.829), https://apx6u.app.goo.gl/7G14
« Last Edit: January 02, 2019, 09:10:26 PM by na3s »

cdalejef

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #33 on: November 27, 2018, 06:32:51 AM »
PLH:

Thanks, your numerous posts have been immensely informative; I anticipate having more than a few questions for you once I actually dive into this project....


Nothing too exciting to report, the funds I've been planning to use for this project were delayed for about a month, putting things on hold; they should be freed up later this month, enabling me to move ahead.

I was able to take advantage of the 40% sale at the semi local pick-n-pull yard over the weekend, scoring a non cracked dash I've been searching for in the same blue as my interior, a replacement front passenger turn signal, and 2x windshield wiper arms from a Volvo 740 for a grand total of $32, which I was pretty satisfied with.

I had seen Volvo windshield wiper arms mentioned as a simple bolt on upgrade with far more common/standard 'J' style blade mounts over on mightyram50, http://www.mightyram50.net/vbulletin/showthread.php/6425-Volvo-240-windshield-wiper-arms

Happy to report the info was accurate, they're a near perfect match; the set I pulled were from a Volvo 740 I believe.

Hoping to order my D4BF motor by the end of the month and praying S Korea isn't slapped with some obscene tariff before I can get it landed stateside.

I'm wondering if any of you can help me in tracking down a set of wheels... I'm hoping to find 'NATO' style steel rims in 16"x7" / 6x139.7mm / 108mm center bore with workable backspacing.

I incorrectly presumed there would be plenty of likely OEM choices from other vehicles fitting those specs but am coming up pretty dry....

As of now, the leading candidates are:

These Montero steel rims that check all my boxes, but at $95/ea, $475+shipping for the 5 I want, seems stupid high for such basic rims....

https://www.finishlinewheels.com/MITSUBISHI/MONTERO/2002/S-65787U20/

These Toyota steel rims look promising, are pretty affordable at $55/ea, $275 shipped for 5, but having the centers bored from 106mm to 108mm adds to the cost and I'm not certain the center bores would be conducive to a machinist's boring bar due to the fact that they're stamped. Being lugcentric, tt shouldn't really matter though.... Can anyone confirm?

https://www.wheelsandcaps.com/Toyota-Tacoma-2013_p-52618-steel-wheel-rim-16x7-69482.aspx?variantid=258792&ref=g-pla&gclid=CjwKCAjwo_HdBRBjEiwAiPPXpHGYDIqsHKs-EaYO-6tmPIqZ4SCZVu6QuPZvbdB2gLQI24BmZsx44hoCJ1MQAvD_BwE

The only other semi viable choice I've come across would be these stock Toyota Tacoma alloy rims. They're the only alloy rims I've found with aesthetics I like, they can be found pretty cheap on CL, but having the centers bored from 106mm to 108mm adds to the cost before bead/sand blasting/painting them.


This however is all academic/research at this point as I'm not certain what backspacing I'll want after swapping in the wider MS rear axle and front suspension/steering as well as what front fender well clearances I'll need to contend with after the modest +/-2" lift I'm hoping to gain from the UCAs/HD Torsion bars and 235/85r16 tires.

Any educated insights/advice is appreciated.

I had to clearance my aluminum Trooper wheels to clear the larger axle center diameter of the Montero axle. A router with rabbiting bit made quick work of it.


na3s

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #34 on: December 19, 2018, 07:09:39 PM »
Thanks Jeff but I think I've found a solution regarding what rims to run...


https://pmctire.com/en/wheels/macpek/steel-wheels/steel-wheel-montero-16x7-6x139-7-offset-deport-15-110.tire

They check all my boxes:

-Steel 'NATO' style
-16" x 7" to clear the big 315mm brake upgrade I'm planning as well as fit the Falken Wildpeak A/T3W LT235/85R16 tires I'm leaning toward - http://www.falkentire.com/tires/light-truck-suv-cuv-tires/wildpeaka/t3w-tire
-6 x 139.7mm/5.5" bolt pattern
-15mm offset
-110 mm center bore to fit our 108mm hubs, running tapered lug nuts should render them 'lugcentric', eliminating any centering concerns

Plus, they're only $94.62 Canadian, translating to +/- $350 USD for a set of 5 w/free shipping. I'm only about 25 miles from British Columbia, so shipping them to an address just over the border and picking them up in person shouldn't be an issue.

« Last Edit: December 19, 2018, 08:00:37 PM by na3s »

na3s

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Re: '87 D50 4x4-D4BF Diesel/97-99 MS Swap/Build Questions
« Reply #35 on: December 20, 2018, 01:35:24 AM »
The other big news is my D4BF crate motor has finally arrived!


http://www.hyundaiengine.com/auto_diesel/05_d4bf.html

The ability to purchase it, as well as virtually every part, brand new, factory direct, and for as affordably as they are, was the deciding factor in undertaking this build in the first place.

Itíll be a while yet until Iím ready to install it as Iím still working on gathering parts and rebuilding/upgrading the suspension, drive train, brakes, cooling, etc., but Iím beyond pumped its finally here and in my shop.

IncorpoRatedX

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Re: '87 D50 4x4 Diesel Build
« Reply #36 on: December 20, 2018, 05:44:53 PM »
That's beautiful.

TOASTY

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Re: '87 D50 4x4 Diesel Build
« Reply #37 on: December 21, 2018, 04:54:03 PM »
I'll take 10!

concealer404

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Re: '87 D50 4x4 Diesel Build
« Reply #38 on: January 04, 2019, 04:20:54 PM »
How much was that motor landed if you don't mind me asking?
1998 Montero Winter Package (Mine)
2003 20th Anniversary Montero (Wife's)

na3s

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Re: '87 D50 4x4 Diesel Build
« Reply #39 on: January 05, 2019, 06:56:32 AM »

cdalejef

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Re: '87 D50 4x4 Diesel Build
« Reply #40 on: February 06, 2019, 05:57:19 AM »
Any updates?

na3s

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Re: '87 D50 4x4 Diesel Build
« Reply #41 on: February 06, 2019, 06:21:14 PM »
I'm in something of a holding pattern at the moment.

I bought a '97 MS a week or two ago to harvest the 5MT V5MT1, front brakes, front suspension, steering system, and a few other bits and have been parting out the rest to recoup some of my costs:

https://forum.adventuredrivendesign.com/index.php/topic,804.0.html

The upside is I've gained a spare 5MT V5MT1 I know to be in good working order and virtually all the major used/junkyard parts needed to complete my swap.

The only big parts I'm really missing now is a '02-'04 MS CAD free 4.636 front diff and a 3rd row radiator from a 2.6 Raider/SB 1st Gen. I've a line on a diff for a decent price, but the yard is about 2 hours away and only open 8-5/M-F, which makes getting down there a bit tricky and it looks like a number of yards on car-part.com have the radiator I'm after.

As it stands, my rough plan is:

-Strip all the parts I'll be keeping, sell off anything else, and scrap the '97 MS.
-Track down the CAD free 4.636 front diff and 3rd row 2.6 radiator I need.
-Begin cleaning, stripping, rebuilding, overhauling, re-sealing, re-bushing, painting, rod, etc all the used parts I've sourced (diffs/axles/pumps/calipers/hubs/MCs/etc)
-Once it warms up a bit in a few weeks, I'll tear down my D50, sell the parts I won't be using, and remove the cab from the frame.
-Address any corrosion/rust in the frame and cab before repainting, sound proofing, and insulating.
-Order a bunch of new parts, upgraded suspension, 315mm brake rotors/ss lines, centerforce II clutch, EGT/boost gauges, new steel wheels/235/85/16r ATs, etc, and start putting it all back together again with new fluids and silicon hoses throughout.
-From there I'll have a host of smaller projects to tackle; front mount intercooler, new carpet/seats/interior, flatbed, snorkel, tubular bumper/winch, sliders, dual battery, etc....

It'll be several months yet until its all back together and up and running but feel the project warrants this degree of depth considering the investment I'm making.

I think it'll end up worth the wait, resulting in a pretty capable truck that checks my boxes more than anything else on the market, for considerably less:

-Simple
-Overbuilt/reliable
-Fuel efficient
-Versatile
-Not enormous


How has your intercooler and snorkel impacted the power and performance of your truck? Have you noticed lower EGTs? What's your MPG now?

« Last Edit: February 06, 2019, 06:29:36 PM by na3s »

cdalejef

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Re: '87 D50 4x4 Diesel Build
« Reply #42 on: February 06, 2019, 07:02:10 PM »
More power for sure! I gained about 5-6 psi of boost and the EGT's are down about 100 degrees on the average. I haven't checked the mileage.

na3s

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Re: '87 D50 4x4 Diesel Build
« Reply #43 on: February 06, 2019, 07:21:52 PM »
That sounds pretty good.

Do you notice the increase in power down low, higher in the revs, or everywhere?

Does the boost come on sooner now?

Did you end up with a 2.5" straight through exhaust?

Is your EGT probe in the manifold or tapped into the EGR block off?

cdalejef

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Re: '87 D50 4x4 Diesel Build
« Reply #44 on: February 06, 2019, 07:56:38 PM »
It's pretty much all across the board.

Not sure if it comes on sooner as it spooled up pretty quick before, it just pulls hard all the way up to about 3000rpm

Yeah, 2.5" straight pipe.

It is in the EGR block off plate.