TRANSGO SK200-4R-B Valve Body-ACCM-Servo Kit Instruction Manual
- June 3, 2024
- TRANSGO
Table of Contents
- TRANSGO SK200-4R-B Valve Body-ACCM-Servo Kit
- THE COMPlAINTS
- START HERE – AND READ THE WHOLE THING
- SOME OF THE ANSWERS
- APPLY PISTON ORIFICE
- CONVERTER CLUTCH SHIFT VALVES
- HOLD IT
- STEP4: Hole sizes
- CHEC KBALL LOCATIONS (8) when trans is ON THE BENCH
- IF THE TRANS IS OUT OF THE VEHICLE DO THE PUMP TECH
- THROTTLE AND TV CABLE RELATIONSHIP
- 2004R Reverse Fix
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
TRANSGO SK200-4R-B Valve Body-ACCM-Servo Kit
SYSTEMS CORRECTION AND CALIBRATION KIT
MOST OF THIS THICK PAPER IS TECHNICAL INFO, THAT IS NOT IN THE REPAIR MANUALS
SO THAT YOU CAN PREVEN T ERRORS, AND ALSO CORRECT ERRORS SOMEONE ELSE COULD
HAVE “BUILT IN.” THE SHIFT KIT® IS THE EASY PART.
THE COMPlAINTS
- 3-2 CUT LOOSE OR RUNAWAY
- 1-2 SOFT, SLIDE OR SLIDE BUMP
- WRONG GEAR STARTS OR 2ND GEAR STARTS DOWNSHIFT CLUNK – BANG or ROUGH 2-3
- PART THROTTLE TO 1 ST UNDER 35 MPH
- TV WON’T ADJUST PROPERLY
- LATE SHIFTS or EARLY SHIFTS
- KICKDOWN DELAY OR BIND UP ABOVE 50 MPH BUZZ, MOAN or PUMP CLATTER
- WHAT IS SUCCESS??? ARE YOU READY FOR SOME?
- IF YOU KNOW WHY YOU ARE DOING IT, IT COULD TURN OUT BETTER THAN EXPECTED.
START HERE – AND READ THE WHOLE THING
- Are you ready to road test this trans and NOT HAVE a 3-2 cut loss or a 1-2 slide or slide bump?
- Are you ready to road test this trans and NOT HAVE now or 6 months from now, a 3-2 cut loose, a 1-2 slide or a slide bump?
- Would you like to give this vehicle back to your customer without the “traditional” downshift clunk and severe neutral to drive engagement?
- Are you ready for gear changes that are crisper with more throttle, instead of longer and softer?
- You can uncross your fingers about the 2nd gear band and the direct clutch burnout also because the CAUSES of their failure will be corrected.
- All of the UPSHIFTS and DOWNSHIFTS in this trans are ACCUMULATED, except the 2-1 downshift@ 8 MPH. This means that AN Y slide, bump, bang, or clang is
- proof of a SLIPPING friction unit, that does not apply during the ACCUMULATOR action, then applies abruptly.
- Even when you get this job for other reasons, such as a stripped Sun Gear Shell (Input Drum) or broken pump rings, have you noticed that the shifting complaints just seem to APPEAR, like the intestinal flu with a good headache for a bonus?
THE QUESTIONS
- Are the CAUSES there since day one and nobody noticed?
- Do they “wear in” over time and miles from WARP & WEAR?
- Are they inherent in the design and time lets them appear?
- Is it something that you do or do not do during repair?
SOME OF THE ANSWERS
SINCE DAY ONE?
Some of the complaints are noticed from the start, with a careful road test on
a hot day. The complaints new or nearly new are a 1-2 slide, 1-2 slide bump, a
long soft 1-2 above 5/s throttle (starts at 32 and finishes at 40MPH), a
slight flair or cut loose during a 3-2 part throttle KD at 26-40MPH, a long
delay during KD above 55MPH, a coasting downshift clunk and a rough forward
engagement.
Why are not these complaints dealt with during warranty?
Though the complaints are there, they are not yet interfering with the
vehicle’s ability to get “there” and back again. Also, it’s new, it smells
good, it’s comfortable, and who wants to admit, in much of a hurry, that his
@ $?0,000 decision wasn’t quite perfect? Those who do complain and have enough
horsepower to get the service person’s attention AND are also willing to be
without their car while the dealer “investigates” the complaint, usually hear
the standard “Fairy Tale”. “I really don’t think there is anything wrong with
it. Yes, some of them do have this complaint. The engrs are working on this
problem, we will let you know if a solution is discovered.” And, the mind-
boggling statement of paradoxical nonsense, which is, “George, don’t you worry
about a thing, just keep driving, because it’s GUARANTEED.” All of that yak,
is just a backhanded way of not telling the truth of, “I am sorry George, but
we don’t know how to fix it.”
WARP AND WEAR
Does play a big part in the complaints. Only when the trans is brand new are
all the parts flat, square and parallel. This means that if the flow and
regulation were PERFECTLY correct when the trans was new, those same specs
could not be correct, even with what could be considered “normal” warp and
wear.
INHERENT IN THE DESIGN?
Of course, they are inherent in the design, but if all the inherent possible
failings were designed out, the vehicle would cost$10,000,000 and you (and we)
wouldn’t have a job. It is now your job to correct the causes of
complaint/failure. You are now the one getting paid for the fix, not the
factory. The combination of 1, 2 & 3 added together really matter, but there
is something else that changes more than the trans. THE ENGINE.
A seasoned engine (40-80,000 miles), at 5/a throttle, will have as much power, as wide open throttle had when the engine was brand new. When an engine is new, it requires @ 50 ft. lbs. of torque just to rotate it. With 60,000 miles on it 10 ft. lbs. may turn it. This means that at ½ throttle in 2nd at 30 MPH the engine is delivering 40 lbs. more torque than it did new. When the engine was new the compression ratio is usually around 7½ to 1. (maybe even less) In 60,000 miles carbon has built up in the chamber to cause a compression ratio of 8¾ to 1. This increases torque output by 16%. At 60,000 miles the engine has 16% more torque at all throttle openings, plus 40 lbs. from the reduction in engine friction.
NEW ENGINE
With@ ¾ throttle a 3-2 kick down at 30 MPH lets the engine rev up to@ 3000
RPM. When new this is@ 200 ft. lbs. of torque. The converter is still
multiplying torque, at this speed at approx. 1.6 to 1. – 200x 1.6 = 320 ft.
lbs. the trans must hold – 60,000
MILE ENGINE
¾ throttle 3-2 kick down produces 200x 1.16 (16%) = 232 plus 40 = 272 at
engine times 1.6 at converter = 435 ft. lbs. the trans has to hold, during the
downshift. It is not going to make it with the original calibration. Does this
explain why a new car may not have a 3-2 cut lose, but a 40-100,000 mile
vehicle will have that cut loose even when everything in the trans has been
replaced? Does this explain why a 1-2 shift that starts at 40 doesn’t get
finished until over 50? What this means is that unless you do something about
it during your repair, it is just not fixed. You will find that when you do
the SYSTEM CORRECTION technology it will be fixed and everything else you do
is just along “for the ride”.
THINGS YOU DO OR DON’T
Now we are down to what really counts. You and what you do. When a customer
gives you a job, he does not care about one iota about the concept, design,
inherent, disinherit, flat, square, parallel, torque, horsepower, and RPM. He
also does not give one hoot whether you put in one clutch or 18. Or 46 seals
and 11 bushings or what brand of oil do you use? The job is there for only
three reasons and if you are going to give the customer honest value for his
money, then you have to be there for the same three reasons. These are the
things that he needs and wants.
- Wants the CAUSES of the complaints/failures corrected.
- Wants the vehicle to respond properly to throttle opening.
- He wants it to LAST.
These are also the only things that he can use to judge the value of your work. These are also the only things that you should use to judge the VALUE and the PRICE of your work.
This means that the VALUE and PRICE depend upon how well you do 1, 2, & 3 and
not on how many bands, clutches, bushings, and seals you installed. They have
nothing to do with correcting CAUSES, or throttle RESPONSE or how long it
will LAST. Those are just things that you do because – (take your pick) – It
proves it was O’hauled. – They were burned out – They had miles on them – They
were dirty. Those things may have been the fix in the “Dinosaur” days of the
trans business, but not now. A big stack of parts doesn’t fix’em anymore. What
fixes today’s tr and’s is awareness, awakeness, active data, and active
parts that are more CONSCIOUS of the signals sent to them and respond better
by sending QUICKER and more DISTINCTIVE instructions to the friction units
that are just obedient servants. It doesn’t take a genius to see that SYSTEM
CORRECTION is the TECHNOLOGY that fixes today’s trans and everything else is
“Just along for the ride”. Your application of SYSTEM CORRECTION technology IS
the EVIDENCE of both your TECHNICAL ability and your ETHICAL correctness
because without it this trans is NOT FIXED. “IT’S A LOT EASIER TO FIX THE
TRANS
THEN IT IS TO DEAL WITH THE HASSLE.”Our very best to you and your customer,
THE TECH TEAM 2621 MERCED AVE., EL MONTE, CALIF. 91733 Featuring BOOTSTRAP®
TV US Patent #4, 711,140 Most complaints of LATE or EARL V shifts and clutch
or band failure are caused by malfunction of the TV system or a delay in
response to throttle opening. We’re convinced this new system will continue
to perform and prevent the complaints and comebacks caused by TV malfunction.
Want tech assistance? Need Training?
Research tech service has what you need to get those troubling jobs out the
door FAST. A private phone number direct to our technicians and tech books
with the data you need.$92 a month. Call
626-443-0991 GASKETS, SEALS, OR DRILLS
ARE NOT FURNISHED AS PART OF THIS KIT. SOME MAY BE INCLUDED FROM TIME TO TIME
FOR YOUR CONVENIENCE.
APPLY PISTON ORIFICE
If the orifice is a cup plug, with a hole in it, it is OK as is. If the orifice is a drilled hole, install a BLACK cup plug furnished. HERE’S HOW: Enlarge the orifice hole with a %2” drill (.147-.157) and install the cup plug into it.
BAND ADJUSTMENT
The clearance for the 2nd gear band is return Install spring WHITE NOT
CRITICAL, but it must have SOME. BEFORE CHECKING CLEARANCE: Pt pump pliers.)
BEFORE CHECKING CLEARANCE
cover out against the snap ring with pump pliers.
WITH PAN OFF
Reach up past the v with a screwdriver. Move the band FRONl Must move freely
FRONT to REAR 1/a’
WITH PAN ON
If you can turn the drive BACKWARD RDS, by hand, and only feel the reduction,
the 2nd gear band clearance
SAFETY CHECK
Push the cover “IN” e slide a paper match between the snap ring. If 2nd gear
band wiggle front to rear, you can 1 the driveshaft backward, by hand, if it’s
tight, remove one or two GOLD.
CONVERTER CLUTCH SHIFT VALVES
BAND ADJUSTMENT
The clearance for the 2nd gear band is NOT CRITICAL, but it must have SOME.
BEFORE CHECKING CLEARANCE
Pull the cover out against the snap ring with water pump pliers.
WITH PAN OFF
Reach up past the valve body with a screwdriver. Move the band FRONT to REAR.
Must move freely FRONT to REAR 1/s” or more.
WITH PAN ON
If you can turn the driveshaft BACKWARDS, by hand, and only feel the gear
reduction, the 2nd gear band clearance is OK.
SAFETY CHECK
Push the cover “IN” enough to slide a paper match between the cover and the
snap ring. If 2nd gear band will still wiggle front to rear, or you can still
turn the driveshaft backward, by hand, it’s OK. If it’s tight, remove one or
two GOLD spacers.
HOLD IT
CHECK THE TV SYSTEM BEFORE INSTALLING THE VALVE BODY WHEN IT’S RIGHT, IT
WORKS LIKE THIS
Look down the drilled TV hole. Each time the plunger is pushed flush, the
valve must move leftward and open the hole 1/3 or more. As the plunger is
released slowly, the valve must move rightward and close to the hole. Try it
about a dozen times. It should work every time. That’s it. Don’t FORCE THE
PLUNGER: If it’s handy or doesn’t want to go flush, there is a bind on the TV
valve. The TOUGH spring may be cocked and binding on the BLUE spring. Rotate
the TOUGH spring and try it again. Still Hang? Try the TOUGH spring by
itself.GASKETS, SEALS, OR DRILLS ARE NOT FURNISHED AS PART OF THIS KIT. SOME
MAY BE INCLUDED FROM TIME TO TIME FOR YOUR CONVENIENCE.
CHECK THE TV SYSTEM BEFORE INSTALLING THE VALVE BODY WHEN IT’S RIGHT, IT
WORKS LIKE THIS
Look down the drilled TV hole. Each time the plunger is pushed flush, the
valve must move leftward and open the hole 1/s or more. As the plunge-er is
released slowly, the V?lve must move right-ward and close the hole. Try it
about a dozen times. It should work every time. That’s it. Don’t FORCE THE
PLUNGER: If it’s handy or doesn’t want to go flush, there is a bind on the TV
valve. The TOUGH spring may be cocked and binding on the BLUE spring. Rotate
the TOUGH spring and try it again. Still Hang? Try the TOUGH spring by
itself.GASKETS, SEALS, OR DRILLS ARE NOT FURNISHED AS PART OF THIS KIT. SOME
MAY BE INCLUDED FROM TIME TO TIME FOR YOUR CONVENIENCE.
WHAT SIZE HOLE IS REALLY THE BEST?
V6s have lower axle ratios. They need small holes. Midsize cars 6 & 8 are
lighter. They need small holes.
EXAMPLE
Hole “B”-V6s and midsize cars-.062-.067 Full-size VB’s -.068-.073 Cheaters get
complaints.
SOME COMMON SENSE
Nearly all of the downshift and upshifting complaints and burned friction is
caused by DELAYED or UNDER active pressure condition. The #1 goal of this
SysKoKalkit is to correct and prevent UNDER active regulation. And the kit
FIXES it. When pressure rise is not correct, the accumulator systems cannot
work correctly; AND there are NO HOLE SIZES or “Special” plates that can make
it work right or prevent friction failure. If you install LARGER HOLES than
recommended and don’t have ROUGH SHIFTS, it is PROOF that the trans STILL HAS
a PRESSURE rise or accumulator PROBLEM.
WHO NEEDS A 3-4 DAY HEADACHE FOUR TIMES A YEAR?
Our estimate is that one out of four of these jobs will have the wrong VB and
plate combination when it arrives. If you are doing exchanges or any parts
cross-mixing without knowing what will work and what won’t, you can spend
forever fighting NO 2nd, no Lockup, or early lockup with no unlock. Pay
attention to the TECH furnished in this kit. IT WORKS. All diesel AND EXPORTS
I Canada that require a cover switch on the 1-2 Accm casting, MUST have a
hole-in plate at the “G” location.
STEP4: Hole sizes
Don’t cheat –Use the exact sizes shown
Passenger Police-Taxis-Limo-Hot Rod
- A= .072-.076 A= .076-.080
- B = .062-.072 B = .072-.076
- C= .072-.076 C= .076-.080
- D= .072-.076 D= .076-.080
- E = .110-.113 E = .113-.116
- F = Plugged F = Plugged
If the plate doesn’t have hole “E”: Use the gasket as a guide and drill “E” to .110 to .113For firmer 1-2 and 2-3 shifts: Order 2nd piston and cover for an 87 BLl:r:-1< Grand National. It is OK if the inner steel piston fits loose in 2nd applied piston.
GOT A HOLE THAT IS TOO BIG?
Place the part of the plate with the hole that’s too big onto the front or
rear face of a sprag race. Put a check ball on the hole and hit it with a
light hammer. Then, redrill it to the correct size.
CHEC KBALL LOCATIONS (8) when trans is ON THE BENCH
GASKETS, SEALS, OR DRILLS ARE NOT FURNISHED AS PART OF THIS KIT. SOME MAY BE INCLUDED FROM TIME TO TIME FOR YOUR CONVENIENCE. SHIFT KIT® is the brand name for valve body kits designed by Gil Younger and manufactured by TransGo® Be careful about calling other valve body kits by our brand name, “SHIFT KIT®”. You might end up with some parts that will not be or do what you expected.
IF THE TRANS IS OUT OF THE VEHICLE DO THE PUMP TECH
To REDUCE LEAKS and PREVENT seals from BLOWING OUT -ENLARGE THE FRONT SEAL DRAINBACK HOLE AS SHOWN
THROTTLE AND TV CABLE RELATIONSHIP
For more than thirty-five years I’ve been working on trans’s. It’s common knowledge that I’ve researched, designed, and produced more, successful problem-correcting trans parts, than all other persons or companies put together. ALSO: By many times over, myself and my tech crew, has identified, isolated, researched, and corrected more causes of complaint/failures, that shops have than everybody else, including the car factories. AND YET: Even with all of this experience and all of these results, there are only a VERY FEW THINGS that I am certain that I know PERFECTLY. One of them is: When you adjust the cables EXACTLY like these instructions, they will be RIGHT. ANY OTHER WAY- Or not doing it, is WRONG.
GASOLINE
- REMOVE the AIR CLEANER and place it on your BENCH (PLEASE).
- Push the TV adjusting TAB and move the cable housing TOWARDS the CARB, as far as it will go.
- Have someone floor the gas pedal from INSIDE the car. While they hold the pedal floored, you BEND the THROTTLE CABLE BRACKET away from the carb until the CARB ARM BOTTOMS SOLIDLY against its stop.
- While someone is still holding the pedal floored, DEPRESS the adjusting TAB and slide the TV cable housing AWAY from CARB FIRMLY until it stops. Release TAB and let it lock. (Go to Step 5)@Copyright Nov. 1986 by Gil Younger All rights reserved. No part of this paper may be reproduced, copied or transcribed without prior written permission of Gil Younger.
DIESEL
- Release the locking tab and push the cable HOUSING an inch or more towards the bare CABLE.
- Have someone floor the throttle pedal from inside the cab, while you adjust the rods or cable until the arm on the injector pump is against its wide-open stop.
- While the throttle is still being held wide open, release the TAB and push the HOUSING FIRMLY away from the bare cable until it stops and engages the TAB.
- Go to step 5. NT POCKETKNIFE a deep MARK on the cable HOUSING tight up against the front of the adjustment assembly. This MARK is MAX TV.
- Depress TAB and move mark 1/a” towards carb (for ward).
- Road test BEFORE installing AIR CLEANER.
- The first check is tor DETENT. Here’s how: Make a very light or min throttle 1-2 shift. As soon as it shifts, floor the throttle. The trans MUST shift back into 1st. If it doesn’t you need more TV.
SOME HINTS
The mark you made is MAX TV. Moving the mark AWAY from the adjustment assembly
reduces the TV. Diesel and gas V8s work best from max to two clicks away
(about 3132”). V6s work better with about 4 clicks away from max (%2”). LISTEN
UP: This trans will KICK your BUTT good if you let it out the door without a
LOW SPEED 2-1 kick down
If you are overhauling this trans, there are some other “NICE THINGS” you might want to do while it is apart.
FOR A SMOOTH NEUTRAL TO DRIVE EN ENGAGEMENT
Sand the forward clutch steel plates, by hand, with 40-180 grit emery. Yes,
even NEW ones. HERES WHY: If the plates stop the trans rotation before the
cushion spring bottoms, the engagement will be smooth.
HI GH DRUM SURFACE
Sand around the drum with 60-120 emery on two angles to get a cross-hatch
pattern. This will ► help the trans have smoother shifts at light throttle
openings.
WORN PLATE AT CENTER CHECK BALL
No big deal. A small leak won’t matter. A .015 over the GOLD ball is furnished
for normal wear. If the plate is worn badly, use the .030 over BL ACK ball
from SK 279 Kit.
THE CHECK BALL INSTALLED MUST HAVE CLEARANCE
Hold the plate firmly down against the valve body. The ball must still wiggle.
It could happen that somebody has already done some TRICK and you have a too-
firm 1-2 shift. If this happens, give us a ring and we will help you Product
support: (626) 443-7451Research has a troubleshooting service by phone & FAX
and HI-TECH training for the serious technician who needs to get it right
FAST. Every day you spend on a job that won’t ship reduces a shop volume of
$1000 that week and stresses you out. Let us help you get the jobs out FAST.
$92 a month. Call 626-443-0991
SUN GEAR SHELL (INPUT DRUM)
If the rotating movement of the sun gear is more than a ¼ of a tooth it should
be replaced. You will likely be able to find a used 200 that is still in good
condition if cost is a factor. But you should be aware that a good used one is
not FOREVER even tho 2-3 years of service could be expected. To get a FOREVER
fix order a new heat-treated Input Drum 8648484. It retails from your GM
dealer at $24.50
2004R Reverse Fix
Prevents/corrects hot chatter or slip in Reverse
Install the accumulator transfer plate and the 2nd accumulator assembly loosely with bolts. Remove one bolt and install Guppy™ on top of the transfer plate. Swing it leftward against the casting. Yes, the Guppy™ just sticks out over the edge. When the pan is installed, it will pressure the Guppy™ against the plate and fix the reverse leak.
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