TBucket 200-4R Transmission Project

.
Next I put the CKP billet servo together and then installed in the case.

FP02_IntermediateServo_00598.jpg


I couldn't put the snap ring in with just one hand while I'm pushing the servo cover in against the
spring. So I used a screw driver and wedged it in between the stand and the servo cover, now I have
both hands free. It was easy then.

FP02_CKPBilletServo_00773.jpg


Back to the center section, next the 4th gear clutch and piston went into the case.

FP05_4thGearPistonSpringAssm_00779.jpg


Looking at the view above it's hard to tell what is the piston and what is the spring assembly. To clarify
and make clear I included the photo below.

FP05_4thGearPistonSpringAssm_00629.jpg
 
I'm constantly even more impressed with the photographic skills being displayed!
and hopefully the trans rebuild is going to reflect the attention to details and care during re-assembly
 
Buddy at Precision Machine is in bad health and the family is clearing out the shop and all the storage spaces
he has. The shop is probably 60' x 120', it's a good size shop. I got a call from Tony the helper at PM and he found
three 200-4R transmissions. On several occasions have asked if all the parts are stored in one location for the
200-4R, but Tony kept hem-hawing and never really saying. Today when I went buy to pickup the trans, I told
Tony if he comes across any new parts, please set them aside and call me. Well he finally said follow me today
and we went back into the shop area and led me to all the 200-4R parts, mostly used but some brand new in
the box.

The three trans were $50 each.

TransPurchaseFromPrecisionMachine_00780.jpg
TransPurchaseFromPrecisionMachine_00781.jpg

That planet gear carrier on the right, I just paid $70 for a used, but inspected one from CKP. All the parts
you see were $225, they let me go ahead and take them without paying. I've promised to come back next
Tuesday with the money. I had the money and paid for the 3 transmissions.

TransPurchaseFromPrecisionMachine_00783.jpg
 
I'll sell you a complete trans with all new soft parts for $1000, what you say Mr Big Money??? :cool:
 

CONGRATS RICK!
that type of deal and scoring parts at bargain prices is very rare,
but it certainly makes the hobby fun and interesting.. and youll remember it always with a big grin,:D
I once had a guy give me a 454 powered motor home...provided I would drive it away and he never had to see it again,
the interior was crappy the roof leaked like a colander, but it would move under its own power so I took the drive train out and cut up and junked the rest..
we were BOTH happy as a result
 
.
Continuing to assemble the center section, next measurement will be the Front Section End Play (FSEP).

Next part to go in the case is the OD internal gear (529).

FP06_InternalGear(529)_00784.jpg

Then the sub assembly shown below. Before I put it in the case, I measure the clearance between
the snap ring and planetary carrier shown below. That turns out to be .042 inches, this will be used
later to calculate the FSEP.

FrontSectionSubAssembly01.jpg

FP06_OverRunClutch_00785.jpg

Now we can install the 4th gear clutch disks, 3 frictions and 3 steels, then the thick backing plate
and snap ring.

ClutchPlate01_4316.jpg

ClutchPlates02_4318.jpg

Next will be the selective washer that sets the FSEP and goes on the back of the pump, but first if the
washer shifts CCW enough it can cover the hole shown below. So I elongated the hole so that it could
not happen. To start with I used the same selective washer (.186 inches) I used in the first build.

FP06_PumpSelectiveWasher_00787.jpg

After sticking the selective washer to the pump with some Assembly Goo, I install the pump and gasket into
the case. This is easier with the guide pins, but can be done without them.

OilDeflectorPlate_4328.jpg

I superimposed the two reading on the dial indicator, first I set zero by pushing down on the input
shaft, then pull up on the input shaft and I get .047 inches. This is where we do some simple math by
subtracting the clearance we got above (.042 inches) from the reading on the dial indicator of .047
inches. The end play per CKP should be .003 to .006 inches.

FSEP = .047 - .042 = .005 inches

To get .005 inches of end play I had to change out the first selective washer and install a thicker one.
Every time the end play is not right, you have to pull the pump and change the selective washer,
re-assemble and measure again. It's easy to take what you measure and calculate what you need, then
find the correct selective washer.

FP06_FrontSectionEndPlay(FSEP)_00788.jpg

Below you will find all the clearances I have measured so far.

FP06_Clearances02.JPG

OverDriveComponents.jpg
 
thank you for the those posted 200r4 info and pictures
 
No Problem!

Had to reach back and grab some of my pics from the first build, that's all the smaller pics.
 
Man, I do miss working on my 200-4R... well, I say that now, but yanking and installing was not fun.
 
It has GOT to much easier to drop that tans on your Uber clean T-bucket than the smudge-on-wheels TT
 
I went to Kaman Industrial Technologies about 4 weeks ago hoping to find some NEW needle bearings for
my planet gears. We found something very close, but one was in inches and my needle bearing I suspect are
in metric, all the fasteners are for the trans. They were kind enough to wait until they had a minimum order
from the supplier and then they ordered just 20 needles at $10. Well they finally came in so I went picked
them up hoping I found a supplier for new bearings.

I measured them with my ball micrometer, which is not the right instrument, but with a little patients I figured
I could get a accurate dimension to within a couple of tenths. I measured many times and the largest number
would be the most accurate if you consider the geometry of the spherical ends on the micrometer and the shape
of the the bearings....... think about it !!!

Well I could not tell that there was any difference in the bearing diameters, they all seemed to be in the
neighborhood of .07695 for both the Kaman and OEM needle bearings. The last digit is for rounding and
only shows .00000 or .00005.

Now the reality ...... I could only get 18 new bearings inside the planet gear, where the OEM bearings required 19. I
know this is not scientific, but they don't feel any different when you check for radial play, but it's how you inspect
the planets when rebuilding the trans. I also put the axle in place and tried moving the axle at the farther point from
the gear and it still felt the same. Doing it this way magnifies any play by the distance the axle extends beyond the
gear. Picture if you will, the axle is 2 feet long, any play would be very noticeable since it would move many times the
distance of the original axle.

I believe it come down to a very very small difference, probably in the area of one tenth or .0001 per needle. When you
consider the diameter difference of one needle times 18, then it becomes a very noticeable difference of .0018 or almost
two thousands of an inch. Now at this time I don't have to risk using them, but it's a very interesting problem.

Now this is where you guys come in .... will it work ???

FP01_PlanetCarrierNeedleBearings_00790.jpg

FP01_PlanetCarrierNeedleBearings_00791.jpg

FP01_PlanetCarrierNeedleBearings_00792.jpg

Anybody need me to build a 200-4R for them, I need to do some testing. o_O:D
PM me with your PayPal account so we can get started !!! :cool:
.
 
Last edited:
Lol me I would stuck to the CK recipe if he was the expert I see some crazy things being done to make this trans work that I have my doubts about. I am no expert here Rick on a 200-4r but I had one helping me build my transmission. You don't need to go off the rocker every time Brian comments or brings up the th400. It is a proven transmission. Just do what you are gonna I like seeing other opinions and views also. He makes good points.
 
I personally have never heard of rebuilding a planetary unit--always replaced with an up graded one.
 
You must log in or register to reply here.
Back
Top