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OIL CHECKS

PUMP PRESSURE->

INPUT CLUTCH PRESSURE->

CONVERTER FEED->

COOLER OIL->

PUMP SUCTION->

page 19C) RatioTek 256-830-2199 Steve Younger

AIR CHECKS

A

B

C

D

E

F

G

H

Air check the following locations:

"A" Input / forward clutch."B" 3rd clutch."C" 2nd hold / overrun clutch."D" Low and reverse clutch."E" 2nd clutch."F" Overdrive direct clutch."G" 4th clutch."H" Lube oil - no need to air check.


VALVE BODY ID

Starter bolts connect the manual valve body and lower rear valve body to the separator plate and channel casting.

STARTER BOLT STARTER BOLTS

SHORT BOLTS

STARTER BOLT

Manual valve body shown on left. ---------------- Lower rear valve body shown on right.


SOLENOID WIRING

With the solenoid terminals facing up, install the colored wires at locationsshown.

GREENPURPLE

GREYPURPLE

REDPURPLE

BLUE

PURPLE

ORANGEPURPLE

REV. INHIBIT SOL.

2-3 SOL.

TCC SOL. 1-2 SOL.

LINE SOL.


PRESSURE CONTROL BODY

PRESSURE CONTROL SOLENOID

TCC SOLENOID


REV. INHIBIT SOLENOID BODY

1.483" X .308" X .035"

LINE SOL. LIMIT VALVE

REV. INHIBIT SOLENOID



CLIP FACES

AS SHOWN

1.915" X .380" X .035"REV. INHIBIT VALVE


1-2 AND 2-3 SOLENOID BODY

2.345" X .256" X .035"

3.690" X .446" X .043"

TCC ACCUM.

2-3 SOLENOID

1.625" X .366" X .039"

LOCK UP CONTROL VALVE


"B" Install .178" tan plastic ball.

B


1-2 SOLENOID


MANUAL VALVE BODY

1.845" X .440" X .039" TCC SHIFT VALVE

2nd CL. ACCUM. 3.445" X .594" X .043"

3rd CL. REG.

2.740" X .402" X .049" 2.310" X .255" X .035"

INPUT CL. ACCUM.

MANUAL VALVE


For a full time lube system drill through web "X" using .060" drill.

.040"ORIFICE

FACES ^

.040" ORIFICE

FACES ^

X

2nd CL. HOLD

2nd ACCUM.

3rd ACCUM.

.046" ORIFICE FACES v

NARROW CLIP

.495" WIDE

page 13

Models vary, note direction on disassembly.May be upside down on models that have 2nd holdaccumulator piston upside down. See page 15.

9C) RatioTek 256-830-2199 Steve Younger

NOTE:Install valves on this side of the valve body first, except the 1-2 shift valve and 2-3 shift valve and their springs.

Install these shift valves from other side of valve body, while installing the valve shown on page 12 last.

2nd HOLD VALVE 1.490" X .364" X .035"

2-3 SHIFT VALVE

1.678" X .355" X .035"

2nd CL. REG.

1.728" X .435" X .031" 2.841" X .615" X .049"

3rd CL. ACCUM.1-2 SHIFT VALVE

1.658" X .355" X .035"

LOW CL. REG. 1.728" X .435" X .031"

LOW CL. ACCUM.GREATER DISH THIS SIDE

PRESSURE REG. VALVE 3.603" X .600" X .078"


LOWER REAR VALVE BODY

Install the valves on this side of the lower rear body first.

2nd HOLD ACCUM.

2.772" X .618" X .070"3.245" X .439" X .049"

OD DIR. ACCUM.

3.795" X .608" X .059"3.647" X .446" X .044"

3-4 CL. REG.

page 15

Accumulators and springs cameupside down from shown on somemodels. Make note on disassembly.


AND THEN PLASTIC LUBE VALVE

.057" ORIFICE

.040" ORIFICE

FACES v

INSTALL .930" X .364" X .024" SPRING

4th CL. ACCUM

OD. DIR. CL.

ACCUM.

FACES v

page 16

Orifices may be upside downwhen accumulator pistons areinstalled upside down fromwhat is shown on page 15.Make note on disassembly.


2-1 CONTROL VALVE

1.375" X .355" X .043"

2.442" X .472" X .032" 3.145" X .588" X .043" 3-4 ACCUM.

4th CL. INHIBIT 1.490" X .377" X .043"

2.505" X .477" X .039" 3-4 SHIFT


SEPARATOR PLATE

HOLE "Z" SEE NOTES



CHANNEL CASTING

FORWARD CL. ORIFICE.059" FACES v

.235" PLASTIC BALL

LOW CL. ACCUM. ORIFICE

.034" FACES v

4th CL. EX. ORIFICE

.059" FACES vTCC EX. ORIFICE .067" FACES v



CASE CONNECTOR 8 WIRE TYPE

BLUE LINE SOLGREEN 2-3 SOL

PURPLE

COM. POS.

BROWN VSS

BROWN VSS

ORANGE REV. INHIBIT SOL.

RED TCC SOL.

GREY 1-2 SOL.

VSS measures 1500 OHMs.TCC, rev. inhibit and all shift solenoids measure 30 ohms. These are all normally open and use 12 volts.Line solenoid measures 3.5 ohms and is normally closed. The two inside holes connect with 6 volts only!

The line solenoid works backwards form most systems. Voltage must be applied to boost line.None of the solenoids in this trans. contain diodes.

SOLENOID FIRING ORDERGEAR SOLENOID WITH VOLTS1st 1-2 & 2-3 REV. = REV. SOL. & 2-3 SOL2nd 2-3 REV. INHIBITED = REV. SOL. & 1-2 SOL.3rd none REV. WORKS WITH WIRES DISCONNECTED4th 1-2 AND SHIFTER PLACED IN REVERSE.TCC TCC


NOTES

Forward clutch failure:

This transmission will fail with only the slightest wear in the stator shaft bore were the rings on the inputshaft ride. This wear causes a crossleak of lube oil into the forward clutch oil circuit which partially appliesthe forward clutches and burns them up. This failure occurs while in Park, Reverse and in Neutral. Operatingthis transmission in these ranges can cause a failure even with little wear in this area because the forwardclutch exhaust system is minimal. To expand the forward clutch exhaust system perform the following.

Step 1Use 5/16" drill to bore down near the bottom of the forward clutch orifice passage as shown in photo.Then install .250" steel ball instead of the .059" forward clutch orifice.When done the ball should be well below flush of the channel casting surface.Check this by laying the separator plate on top of the channel casting and verify that the ball is well below theplate allowing for good exhaust.

DRILL DOWN INTOTHIS PASSAGE

Step 2Drill hole "Z" in separator plate using 3/16" drill. See page 18 for photo of plate and location of hole "Z".Then use the .250" steel ball on top of separator plate hole and lightly tap with hammer to make a nice ballseat.Trim the valve body gasket as necessary.


Step 3

Drill through case web "X" using 1/16" drill connecting passages "A" and "B"Start from passage "A" and drill into passage "B"

BX

A

Always replace worn stator shafts and worn input shaft sealing rings!


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