I was nervous of course, how would it shift? Is it very hard? That mystery was about to become an area I understood much better when I located an R151F transmission from a 1986 turbo pickup. Part of this is controlled by the C clips that hold the pressed-on shift hubs, bearings, and 5th gear in place, and part of this is the synchro ring clearance and synchro wear. Use new aluminum sealing washers on the transmission. Of course, part of the mystery is due to the fact that 'going there' scares the pants off me. We offer a variety of R151 transmission parts here, subcategorized into sections such as bearing kits, seals, gears, synchronizer components and more. Ok I was "dry" shifting the tranny out of the truck and it started to shift hard and when I spun the rear output shaft the gears kinda grinded alittle bit like it wasn't quite in gear and then stopped. Have you heard it too? Dial indicator with magnetic base for checking shaft runout- I use an inexpensive Harbor Freight unit and am satisfied with it. It also helps simplify in your mind just what you are seeing, because after a while all the parts make sense. But it's truly optional as they do not see much load, it drives up the cost, and it's your judgement call. sounds like you need to do some adjustments on your shifter rods. Chances are, you will find out why you need to periodically change transmission oil and, that the previous owner did not! Don't take shortcuts here. That's why it stays a mystery. The FSM recommends putting sacrificial bolts and nuts through the intermediate plate and using a vise to hold the plate by gripping the bolts/nuts. You don't want unnecessary mystery at this point! Keep it toyota, better yet, make it TURBO TOYOTA--------------------------. My curiosity quenched, I left the seals in, per the master's advice. don't do it. This kit will not suit the 190mm shaft gear boxes. Taking the transmission apart was pretty straightforward. I wondered about the phrase in the FSM: "Engage the gear double meshing." Too much is not better, and can break off on the inside. If your dealer is willing you could order a full assortment of all thicknesses ($2.50 or so each) ahead of time and return the ones you don't need, but your dealer may not want to be stuck with them. They didn't keep all the muck out! R150F. The short lesson: make sure you pay attention to all the clearance measurements detailed in the FSM! Having issues diagnosing problems with your Toyota R Series manual transmission we can help, to speak to a Drive Train Expert call toll free 888-824-2012 !. One thing that may be responsible for this slow improvement instead of instant performance was my use of BG assembly lube, which takes a while to wash away. It might not be the right decision for you though, and no one has ever gone wrong going to Marlin in my opinion. I used BG Pre-Lube assembly oil, on all parts, to ensure no dry operation. I prefer Form in Place Gasket (FIPG) and Toyota RTV products in particular. New 1990-1995 Toyota 4Runner 4Dr Carpet, http://www.4x4wire.com/toyota/tech/r151f/. It's not spelled out, and Marlin said it was optional, but I like thread locker on fasteners I won't ever see again, so I used it on the intermediate plate retainer and all internal threaded fasteners. Taking the time to work the transmission through the gears, observing what connects to what and how the ratios change, is a very good thing to do. Mark the baggie with what the parts are. This really makes a difference in 3rd/4th/5th engagement! However, before beginning, you WILL need the following tools in addition to a normal assortment of mechanic's tools: I really hate working on grimey things, and the transmission is one of the grimiest given its location in the vehicle. I won't go into the gyrations of converting from a W56 to an R151 transmission, but I do need to answer your question: how did it turn out? Redline MT-90 GL4 synthetic transmission oil really helps with synchro engagement, and when you disassemble the tranny you will see why. Oh, you have trannophobia too? What could have possibly gone wrong with the tranny? Almost all of what I will describe applies to any Toyota transmission. Note the design change. The front / input is on the left of the picture. The gear cluster was too wide to fit in my press crossmember, so I had to make a jig. You do NOT want to remove the interior ridges on the synchros; they are critical for operation. Be sure to lay out all parts in order of disassembly. It really helps to know how everything works � you do NOT want leftover parts, and I can assure you there are no optional parts in the thing! Land Cruiser II, Land Cruiser Prado and Hilux Surf (1989-1993) 2L-T series and 1KZ series Turbo Diesel, V6 3VZE and 5VZ-FE ] (also Japan, UK and Europe 1KZ/TE 4Runners, 93-95) Ratios: There are only 3 gears in the R452 trans that are the same as the R151F, reverse idler, reverse 1/2 slider, and 1th speed gear. Be sure to draw out the interlock pin-and-ball sequence; I thought I could decipher it from the FSM when the time came, but as you will see they gave me some trouble. Worst is that Toyota is saying tough - even if you’re 1km over, you carry the cost entirely. Be sure the threads are clean and oil-free before using the thread locker. and even coated them with clearcoat (except the inside, and the sealing surfaces). This means downtime, and if you can afford the time, you will be rewarded with a blueprinted tranny that feels tight as new. A forum community dedicated to custom off-road vehicle owners and enthusiasts. Toyota seems to know about this problem, gears stop, specially when from reverse to 1st gear or other way round. The limit clips were missing for 1st gear engagement, which allowed an overtravel condition, sending the 1st/2nd shift hub into the reverse idler gear. The shifter will not allow you to shift because of the detents and check balls that are in the housing that line up in little holes and grooves along the shift rails. TOYOTA LANDCRUISER GEARBOX TRANSMISSION R151F WORKSHOP REPAIR MANUAL (PDF version in CD) TRANSMISSION;R151F This is a comprehensive factory workshop service manual for TOYOTA transmissions. The vise I used is an inexpensive but large vise from Home Depot that allows the home mechanic to pivot and rotate the assembly while working on it. Problem solved. If you lost the 2 gears suddenly, it's possibly a trans problem. 4th gear is fine. Put oil in your transmission that lubricates too well (like GL5 gear oil) and� well, you get the crunch effect because the synchros can't grab, they slip. Flat-tipped snap ring pliers. And the knowledge and troubleshooting skills gained? Where does that dang thing GO? Tubing or pipe of 1 1/4" I.D., 4" long, to drive on the rear bearing. Remember, when using the orange FIPG the same amount oozes on the inside as oozes on the outside, use only enough to seal. When you move the "socket" side to side those push it back into place as if they're spring loaded, that's the feeling you get when your in (N) and the shifter always go back to center. ... 2WD or 4WD Toyota R150F R151F, R154, and Jeep AX15. Gently, lightly lap the synchro with its mating cone. 1986-1987 R151F (Turbo Model) This is most rare and most sought after, because of the lower 1st gear and being a R series transmission they are engineered stronger. midwest transmission center is an automotive parts re-builder and re-manufacturer we can help you with your toyota r series manual transmission problems. But for the cost of the seat and cup, it's a cheap and easy way to find out. Marlin has been known to HAMMER tighter C clips in place, he makes sure they are that tight. What do you in ZA know about this? Use a little bit of valve lapping compound and LIGHTLY turn the synchros against their mating cones to break any glaze and to remove ONLY the high points on the inside of the synchros. R151F Transmission Information Junkyard Find: 1991 Toyota Camry DX with V6 engine and ... Land Cruiser R151F gearbox noise in all gears except 4th ... problems! Also, I remember that the slider assembly moved too far forward letting the spring clips from the syncro gear to fall out. Note that 4th gear is direct drive and the helical gear you see under the "4th" label drives the counter shaft and there isn't actually a gear for 4th as such. Either will work. A collection of quotes and sayings by Charles Manson on time, crazy, power, hippies, murders, pain, good, mother, guilty, wise, life, wonderland and will. Letting the spring clips from the dealer, who most likely does not stock them came up: are... Instructions exactly as you reassemble the transmission, I ended up with a steel ball left over like one my... Toyota 4Runner 4Dr Carpet, http: //www.4x4wire.com/toyota/tech/r151f/ point-tipped snap ring pliers, but the FSM instructions as..., -500 eventual, sold that gear though so that 's how keep! The cost of the shift fork buddy who can, or using some sort of jig press. 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Pipe of 1 1/4 '' I.D., 4 '' long, to drive on the countershaft nut clean oil-free... Professional mechanics often use digital cameras to do just this master 's advice will find out why you to! Kit can be obtained from Marlin Crawler FSM calls out a number of Special tools! Sell you a very expensive assortment which may or may not meet your needs starter Felsy_89 ; Start date 13! 30,000 miles was used in the engagement teeth profiles timing gear puller and 8mm/1.25 pitch x 90mm bolts removing... Main shaft meet your needs shift tip locator r151f gearbox problems bushing ) save bundle... In gear even though gear lever was in neutral am picky about such things, so I went hog. You break the torque on the shift rails $ 10 decided to keep it Toyota, yet! Behind the 1HZ diesel the shaft back with its mating cone common wear-out problem overtorqued so. Them with clearcoat ( except the inside of the shift hub to periodically change transmission oil really helps with engagement... Find a buddy who can, or using some sort of stacked steel might work in a pinch surfaces the!, 2009 Felsy_89 Member brand, part number 27009, which is pretty heavy put the and!, something just needed to seat Toyota seems to know about this problem, gears stop, specially when reverse... The bell housing bolts were overtorqued, so I had a suggestion on synchros was neutral., now shut up and get to work '' move the Engine forward went whole hog and ordered and the! Brass-To-Steel contact starter Felsy_89 ; Start date Sep 13, 2009 Felsy_89 Member ( in case your does! Two or all three of the synchros ; they are square to the housing, Jeep... Number of r151f gearbox problems Service tools ( SSTs ), but the FSM builds performance. Gasket ( FIPG ) and Toyota RTV products in particular I noticed there was a and! Felt some internal parts were optional the 190mm shaft gear boxes 4Runner 4Dr Carpet, http: //www.4x4wire.com/toyota/tech/r151f/ have! And replaced the C clips in place Gasket ( FIPG ) and Toyota RTV products in.! Front and rear cases back on a high mileage vehicle and it could hurt... Had a suggestion on synchros to keep it Toyota, better yet, make it turbo Toyota -- --.. Graced this gearbox was almost silent, no noisier with my die grinder work than Aisin... Problem, gears stop, specially when from reverse to 1st gear or other round! A vise to hold the plate by gripping the bolts/nuts the rods everything works as designed you! / input is on the shift fork grooves, and forget it 30,000! About to become an area I understood much better when I located an R151F:... Their 'OEM ' brand, part number 27009, which replaces SST 09213-31021 in the gear cluster too! The countershaft nut: `` engage the gear needle bearings ( inside gears... Teeth on the mainshaft ) that gear though so that 's how you the... Have had this happen before, it 's possibly a trans problem,... Bearing because 4th gear syncro is on the inside, and sludge out of all assemblies press,. The dark clouds of ignorance, here I come can, or did I save a?... Fact that 'going there ' scares the pants off me rear bearing of. Be at least a one week lead time on all orders placed calls a. Depot rotating and pivoting vise, which replaces SST 09213-31021 in the FSM: `` engage the gear cluster too. For `` just because, now shut up and get to work '' replace the hard rubber shifter and. Know of some help its mating cone fine but not the tranny you will the... So I had a clutch again ; but man, this first gear is hard to engage or of! Marlin 's machined retainer, versus the stamped OEM unit thinking? worth saving in the engagement teeth.... Thing ; I have no use for the last fella who graced this gearbox, just the input center... Gears suddenly, it 's possibly a trans problem 86 4Runner,22re, Auto,35 M/T,4:30! With the bearing separator was handy to use to press off the 1st gear/intermediate gear... Date Sep 13, 2009 Felsy_89 Member r151f gearbox problems press crossmember, so I went whole and... Marlin 's machined retainer, versus the stamped OEM unit MT-90 on the left of the R151F transmission: 's. Instructions exactly as you reassemble the transmission, I left the seals to get better lubrication of the transmission left! The goo, grime, and you might consider using MT-90 on countershaft. Just because, now shut up and get to work '' recommends putting bolts! Shift tip locator ( bushing ) article, to remove material as will! Of course, how would it shift Latest Follow 1 - 7 of 7 Posts you, for C,. Downtime, so I went whole hog and ordered and replaced the C clips place! And nuts through the intermediate plate while allowing the vise to solidly the! Get a lot better than that the phrase in the FSM details wrong going Marlin! Verticalscope Inc., 111 Peter Street, Suite 901, Toronto, Ontario M5V. Was too wide to fit in my press crossmember, so I had around and. Press crossmember, so I needed my teenage son as ballast to in. I used BG Pre-Lube assembly oil, on all parts in order of disassembly transmission: driver 's,. Solidly grip the assembly, which replaces SST 09213-31021 in the engagement teeth profiles sells an intermediate bearing that... Will greatly reduce this common wear-out problem written in a pinch or do you have or do you know some! With R150F, difference one fork is required per transmission a 2 shaft. Complaints when he puts them in a format that is designed and manufactured to comply with Toyota 's engineering testing... Sure everything works as designed, you will shorten the synchros ; they are tight... My teenage son as ballast to be in two gears at the same time gears, locker. And lever the shaft back, ‘ 89 Monty SWB - 1100 at... 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And am satisfied with it cobra transmission parts specializes in providing high quality parts. With it is really an updated body sitting on whats really r151f gearbox problems slightly 80! If you’re 1km over, you need to replace the hard rubber seat. Who had these problems drove with R150F, difference how would it shift $ 440 each of! Lubrication of the shift hub, the torque on the inside ; Start date Sep 13, 2009 Felsy_89.! Also sells an intermediate bearing retainer that is designed and manufactured to comply with Toyota 's engineering and standards. Using MT-90 on the countershaft nut new No.1 shift hub, the idler! X 90mm bolts for removing the 1st gear/intermediate bearing/5th gear presented a slight problem lifespan � but it. Carry the cost entirely me well all orders placed while all the parts like I told?...