Topic: Marlin's 3RZ Conversion

[BigMike]

This Project is featured in our Official 3RZ Knowledge and Database Thread


Hello to all,

Well, the time has come. The time for power, the time for fuel relief, the time for 5th gear on the highway at 80 MPH+ uphill...

Marlin has had a 1996 T100 2.7l 3RZ-FE engine sitting at the shop since spring of '04, and I've finally gotten the "OK" to start on The Swap

Angelo told me last week that I could pull Marlin's aging 20R/22R-MAR Hybrid engine and begin the swap starting in August, and as some of you know, Marlin's engine convientely lost a piston this last weekend. So out with the underpowered-old, in with the superpowered-new!

[BigMike [OP]]

I told Angelo that I could perform this conversion in two weeks. So I've got this week, (I'll be gone next week), and the week of the 15th - 19th to keep my promise, so I would like to see this thing running on the 22nd of August.

I've got a lot of work to do, but I believe I can do it with in that time frame.

Man, compared to my 22R, this 20R has SO MUCH VACUUM stuff, I couldn't believe how much simpler the 3RZ is
Also, Marlin has on board air, A/C, and on board welder, so I will be making custom brackets for both the alternator and the york compressor.

This is the first time in my life that I have seen Marlin's drivetrain out of the vehicle. A Triple 1,047:1 Crawler was the sexiest thing I've ever removed from a truck Not to mention the Disconnect rear Toyota Transfercase.

BTW, This prototype Disco has now done Moab once, The Hammers twice, and Rubicon twice. And this is just a hand-welded setup that Marlin built, so his design has obviously proven itself!

[BigMike [OP]]

  Goodbye 20MAR engine. Thankyou for all of the memories and safe times. You will never be forgotten.

Tomorrow I will clean up the engine bay, remove the rest of the exhaust, and then start preping the 3RZ for delivery

Regards,
BigMike

[Marlin]

Since I bought my truck Sept. 17 1983, I soon realized that the 20R was too under powered.
In summer of '86, I added an '84 22R Celica short block that made a noticable improvement.

Soon I upgraded the factory 437 ring and pinions to 488 but with 31" tires, I had no road speed. Pulled out the L43 4 speed and installed a '83 L52 5 speed.

After I wore out the 22R/20R motor, then I built my first hybrid '86 short block 22R/20R engine.

Broke the top ring on the #4 cylinder and grooved the bore in Jackson Miss. on the way to Great Smokey Mountain Trail Ride. Had a set of pistons and rings overnighted, honed the cylinders and thew it back togeather.

Months later, that patch job left me stranded on an Indian Reservation north of San Diego.

Built another hybrid using an '90 short block and another 20R head. This finally when away yesterday July 31 on my way home from the Jeepers Jamboree.

I have always run my motors hard in my heavy truck, and many times have carried many t/cases and transmissions back to the shop.

I am sorry to see the R power plant go by-by, but after driving Big Mikes '81, I look forward to the finished product.

[BigMike [OP]]

I should add that Marlin's engines have always gotten the cheapest gas possible, 87oct Arco/QuickStop/Fastrip/A+/Beacon/yadda yadda yadda, and he rarely changes his oil. What, maybe 20,000+ oil intervals? And yet each and every time I would start up his truck, no matter if it was a cold morning or not, it would fire up immediately, much faster than any EFI engine I've ever cranked.

His engines have always amazed me. Especially since I've gone through 6, yes 6 4A-GE/GZE engines this century, and I always took great care of my engines, and yet his just kept on going.

Marlin's engines are the most reliably and most longest lasting rebuilt engines in the world, I know from experience and I never worry when I am in his truck. We will all miss the 'R' engines, as they are truly our grassroots backyard powerhouses, but it's time to move on to some OBD-II performance and get with the program!

[reklund5]

howcome your engine crane looks so much cooler than mine?  I don't have a ride-on cherry-picker 

[BigMike [OP]]

haha Yeah, I was gonna use the ol' cherry picker, but then I would have to deflate the 37s, and even still I wasn't sure, and Angelo told me how easy it is to just use the fork lift, so he worked it while I guided the engine out

[Willy Mammoth]

Just don't forget you need to have this ready for MCR4! You can't have Marlin miss his own birthday party now can you!

[reklund5]

cheater.  

Glad to hear Marlin made it home ok.  That 3RZ should make a HUGE difference in the driveability of that truck, even if it primarily used for offroading these days.  You've got me thinking evil thoughts of a engine swap on my old 84...but until I can come up with 2 TRD blowers (see, I remembered you need one!) I'll hold off.

Ryan

[CTENG in KS]

I should add that Marlin's engines have always gotten the cheapest gas possible, 87oct Arco/QuickStop/Fastrip/A+/Beacon/yadda yadda yadda, and he rarely changes his oil. What, maybe 20,000+ oil intervals? And yet each and every time I would start up his truck, no matter if it was a cold morning or not, it would fire up immediately, much faster than any EFI engine I've ever cranked.

His engines have always amazed me. Especially since I've gone through 6, yes 6 4A-GE/GZE engines this century, and I always took great care of my engines, and yet his just kept on going.

Marlin's engines are the most reliably and most longest lasting rebuilt engines in the world, I know from experience and I never worry when I am in his truck. We will all miss the 'R' engines, as they are truly our grassroots backyard powerhouses, but it's time to move on to some OBD-II performance and get with the program!

I really don't think it has anything to do with the engines BigMike, I just think Marlin is touched by the gods, but of course that only makes you half touched by the gods so he gets the better luck.  It is just genetics, nothing you can really do about it man.   

[mr4x42u]

I'm surprised not to see efi in that thing ..carb'd marlin rig,,who would have guessed..

[Volcom]

I'm surprised not to see efi in that thing ..carb'd marlin rig,,who would have guessed..

Same here, I figured his rig was converted to EFI 

[FIREBALL]

He's the only person I know who could actually get a weber to work right.

[Willy Mammoth]

Is that front axle a 60 / toy hybread? If not what's up with the open nuckels?

[decyfer]

i was wondering the same thing

[KWP]

 I remember reading somewhere that it is a toy 60 hybrid. Bad a$$.

[toyhatsu]

I was glad to hear that you made it home Ok Grande Exalted One!   What a way to finally get that 3RZ in there.  I would like to be there with the other 3RZ's at the roundup but I don't think that I will make it.  I spent my rebuilt tranny money(core charge money) on tires.  I'd like to drive the 1200+ miles, sleep in your parking lot, put the tranny in and head for the Rubicon with you...can't think of doing anything better than meeting and wheeling with you guys.

Like BigMike told me "You're going to be so damn happy with that engine..." 

[79coyotefrg]

look at the pics guys,  he was running a aisin carb,   im guessing a stock 22R on the 20 intake

[furbis]

Insert Quote
Is that front axle a 60 / toy hybread? If not what's up with the open nuckels?

I'm not positive but he could be running a set of theese.

http://www.marlincrawler.com/axles.html


scroll to the bottom

[Duffil]

Is that front axle a 60 / toy hybread? If not what's up with the open nuckels?

yeah, it is...look at one of his posts and read the signature line.

[FIREBALL]

Ya, he put that on last year when he couldn't get the weber to pass smog. He ran the weber for a long time though.

[freds40]

Yeah Marlin's toy/60 is one of the few IIRC that the side gears on the front end have even been broached for 35 spline.

[kyle_22r]

look at the pics guys,  he was running a aisin carb,   im guessing a stock 22R on the 20 intake

look at the flange...yikes!  it's a 20R carb.  which makes things all the more amazing!

[BigMike [OP]]

I'm not positive but he could be running a set of theese.

http://www.marlincrawler.com/axles.html


scroll to the bottom

Nope, those are just puney D44 axles, Marlin has our old (Hilux center)/(Dana 60 35-spline knuckles)/(Hilux outers) Hybrid axle.

That 3RZ should make a HUGE difference in the driveability of that truck, even if it primarily used for offroading these days.

Oh yeah! actually, we have to trailer it most of the time because we dont want to be stuck in 4th gear floored at only 65 MPH flatland, and 40 MPH flatfoot in 3rd in the hills. In fact, through George town this last weekend, he even had to pull one of the grades in SECOND GEAR

Now that we will have the 3RZ in there, we can save the tow rig and just drive the thing to every trail like it's supposed to be.

Yes, he had a webber, and at one time, a 44/44 Mechanical Secondary that ran great, but he had to pull it everytime for smog and eventually he just left the stock 20R carb (I believe) on because he used to only use the truck about once or twice a year, yes, seriously he was that messed up at work, so changing the carb for a couple of runs wasn't worth the effort. Then once we got the Tundra, he could just keep the stock carb and do fine off road powerwise once he'd shift into low range.

Today I got the day off, so no progress. More to come tomorrow evening

[raybie]

is it done yet

[Volcom]

BigMike, do you have a detailed post explaining the swap?  With all this 3RZ swap talk, it's making my dead 22R in my 4Runner look worse and worse everyday.  Since I don't have anything EFI (wiring harness, fuel tank and lines), how tough of a swap is it?  Looks like I need to read up on it and keep my eyes peeled for a 3RZ

[88runner]

Is that front axle a 60 / toy hybread? If not what's up with the open nuckels?

Damn noobs, they never search 
linky linky http://board.marlincrawler.com/index.php?topic=523.0

BigMike, it would be cool if you could repost some of the picsof the axle if you still got them

[CTENG in KS]

I want to say that all the time, but I didn't want to turn this place into another version of the Pirate board by yelling SEARCH at every question!   

Yes, pictures no worky on old 2002 thread...hook up up BigMike!

[Paul_Elbisser]

  It's funy, I talked to Marlin in 2002 when I was out that way and he was testing the Axle . Was having toubles with it, and said it was Junk. however he is still running it.

Make you wonder how good the good stuff is if that one is junk?

Yea 2 weeks to do the swap I can see that. it's the extras you decide that you might as well do while your into it that kill you.

[79coyotefrg]

dang Paul, we thought you had fallen off the edge of the planet or something