Author Topic: Rebuilding a R151 with lots of pics. (Read 7229 times)

zippo · « **on:** Apr 07, 2017, 11:44:29 PM »

Pulling a R151 apart. I put picks here for me in the future and everyone. Enjoy! Oddly so far the R15X seem easier to deal with then W56X. The previous W56X rebuilds I had to create several special tools. That hasn't been the case so far with this.

zippo · « **Reply #1 on:** Apr 10, 2017, 08:01:49 PM »

Its all apart. Time to order parts! The OTC bearing spliter and puller make quick work of this.

redneckcustoms13 · « **Reply #2 on:** Apr 12, 2017, 04:49:58 AM »

Triple cases?

zippo · « **Reply #3 on:** Apr 12, 2017, 11:17:37 AM »

Quote from: redneckcustoms13 on Apr 12, 2017, 04:49:58 AM

Triple cases?

Oh no I just hoard reduction housings. I don't think anything needs to move that slow!

Rockcrawlintoy · « **Reply #4 on:** Apr 12, 2017, 04:05:51 PM »

So is this thing gettin any cool parts?

zippo · « **Reply #5 on:** Apr 12, 2017, 04:07:16 PM »

Marlin parts all the way. I ordered some but will have to wait on the shift forks and short throw.

zippo · « **Reply #6 on:** Apr 18, 2017, 09:51:03 PM »

So after really checking everything I found some damage the 2nd gear. After some searching I got this. The last OEM r151 2nd gear in the US. Thanks Toyota! Part Number 33033-35120

Also ordered a new rear nut and nylon spacer

94Runna · « **Reply #7 on:** May 10, 2017, 11:17:04 AM »

I'm getting ready to tear into the r-series I have for my truck.
I'm mainly looking to inspect and clean it out as best as possible, due to the shifter assembly and the fill plug not being on the trans for who know how long.
Is there anything I can fill it with that will clean it out, but not harm the bearings and seals?

If its not gonna be that easy..
Will I need any special tools for this project? (Press, bearing pullers, etc.)

Not trying to hi-jack your thread, so if you could message me or something about this, or just reply on here.

zippo · « **Reply #8 on:** May 10, 2017, 12:41:28 PM »

I have heard of people putting kerosene in motors and transmissions running them a bit and changing the oil. I wouldn't recommend that. If you pull the two halves apart it would allow you to clean and metal or sludge out. There is also a magnet in the center which collects fillings you could clean. Might could also spray everything with brake cleaner and blow it off with compressed air. Make sure you put something on it to keep it from flash rusting!

So far the r-series has been easier then the w-series. I remember having to make several special tools for that. So far all you would need for a rebuild is a press, bearing splitter and puller, feeler gauges,snap ring pliers and torque wrench.

I am about 60% done on the rebuild. Other then the cleaning it has been enjoyable. Lots of little bits! But not bad.

94Runna · « **Reply #9 on:** May 10, 2017, 01:48:04 PM »

http://oppiz.net/pics/SlowBuild/04072017%20R151/20170407_172601.jpg

Will I need any bearing pullers or anything like that to get it to this point?

zippo · « **Reply #10 on:** May 10, 2017, 07:40:05 PM »

Quote from: 92runna on May 10, 2017, 01:48:04 PM

http://oppiz.net/pics/SlowBuild/04072017%20R151/20170407_172601.jpg

Will I need any bearing pullers or anything like that to get it to this point?

No Just some snap ring pliers

Gnarly4X · « **Reply #11 on:** May 11, 2017, 07:10:25 AM »

Quote from: 92runna on May 10, 2017, 11:17:04 AM

Is there anything I can fill it with that will clean it out, but not harm the bearings and seals?

Redline makes this:

https://www.summitracing.com/parts/red-30505?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-red-line-synthetic-oil&gclid=CPO8oI-B6NMCFYpgfgod1JcNPg

But you might consider just putting in about 50% Dextron ATF to existing gear oil, and run it for several hundred miles. ATF is a high detergent formulation and has excellent lubricating properties.

Gnarls.

94Runna · « **Reply #12 on:** May 11, 2017, 09:16:39 AM »

Quote from: Gnarly4X on May 11, 2017, 07:10:25 AM

Redline makes this:

https://www.summitracing.com/parts/red-30505?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-red-line-synthetic-oil&gclid=CPO8oI-B6NMCFYpgfgod1JcNPg

But you might consider just putting in about 50% Dextron ATF to existing gear oil, and run it for several hundred miles. ATF is a high detergent formulation and has excellent lubricating properties.

Gnarls.

My truck is an automatic at the moment, so I cant really run it.
My main concern is dirt, pine needles, and rocks.. not the sludge or old gear oil.

I attempted taking it apart lastnight, got the bellhousing, front pump and snap rings off. I took the 3 torx bit bolts out of the side of the trans, but the torx bolt on top is stripped out.. so I'm thinking I'm not gonna be able to complete this without getting too invasive.

94Runna · « **Reply #13 on:** May 11, 2017, 09:20:48 AM »

http://oppiz.net/pics/SlowBuild/04072017%20R151/20170407_172601.jpg

Now that I look at this picture more, it looks like all I have to do is separate the rest of the housing.. and slide it over the input shaft.
Is it that easy and I'm overthinking it?

Gnarly4X · « **Reply #14 on:** May 11, 2017, 12:01:45 PM »

Quote from: 92runna on May 11, 2017, 09:16:39 AM

My main concern is dirt, pine needles, and rocks.. not the sludge or old gear oil.

Geezzz.. I've never of heard of transmission getting "dirt, pine needles, and rocks" in it.

Yeah... a complete disassembly and rebuild would probably be your best bet.

Gnarls.

zippo · « **Reply #15 on:** May 11, 2017, 12:43:52 PM »

It's that easy. You don't need to remove any torx. Just the front snap rings. Tap them apart with a soft hammer.

The torx retain spring and detente for the shifter.

94Runna · « **Reply #16 on:** May 11, 2017, 01:49:44 PM »

Quote from: zippo on May 11, 2017, 12:43:52 PM

It's that easy. You don't need to remove any torx. Just the front snap rings. Tap them apart with a soft hammer.

The torx retain spring and detente for the shifter.

You're awesome Zippo, if I have the pleasure of meeting you one day, I will have to buy you a beer.

Quote from: Gnarly4X on May 11, 2017, 12:01:45 PM

Geezzz.. I've never of heard of transmission getting "dirt, pine needles, and rocks" in it.

Yeah... a complete disassembly and rebuild would probably be your best bet.

Gnarls.

I haven't either, but with the shifter and fill plug off for who knows how long I'm not taking any chances.
Not gonna rebuild unless I absolutely have too, just gonna disassemble, inspect, and clean the

out of it.

92runna

zippo · « **Reply #17 on:** May 11, 2017, 08:15:00 PM »

I bought a tcase from a guy once with a leaf problem.

94Runna · « **Reply #18 on:** May 12, 2017, 10:01:52 AM »

Quote from: zippo on May 11, 2017, 08:15:00 PM

I bought a tcase from a guy once with a leaf problem.

Looks good, just run it

'll buff

helipilot77 · « **Reply #19 on:** Aug 15, 2017, 12:46:21 PM »

Quote from: Gnarly4X on May 11, 2017, 07:10:25 AM

Redline makes this:

https://www.summitracing.com/parts/red-30505?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-red-line-synthetic-oil&gclid=CPO8oI-B6NMCFYpgfgod1JcNPg

But you might consider just putting in about 50% Dextron ATF to existing gear oil, and run it for several hundred miles. ATF is a high detergent formulation and has excellent lubricating properties.

Gnarls.

I've read of lots of people having good success with that ATF mix. Guys on the Tercel forum do that.

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