Power Cable (12V)

2.

Air Compressor Hose

3.

Test Hose

1

Note: The 12V power cable has red (+) and
black (-) connector clamp ends.

22.

Turn the Bearing Clearance Tester power
switch to the ‘ON’ position. Gauges should read

3. Test Hose

as follows:

ON/OFF

AP (Pressure) Gauge: (0.1 ~ .011MPa)

Switch

VC (Vacuum) Gauge: (-73 ~ -83kPa)

2. Compressor Air
1. Power Cable

If the gauges do not read within
specification, calibration of the SST box is
required. Refer to Page 20 for details.
23.

Carefully, insert and connect the other end of
the Test Hose to the Probe Rod fitting.

 IMPORTANT
DO NOT touch or turn the Crank
Rotator

in

any

direction

until

instructed to do so on the KDS.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 17 of 23

BEARING CLEARANCE TESTER PROCEDURES
24.

Select ‘Start’.

 NOTICE
The procedure outlined in this bulletin
follows the engine’s firing order
sequence (1, 3, 4, 2).

1

25.

2

3

4

Locate the ‘AP/VC’ switch on top of the Bearing
Clearance Tester Box and switch it to the ‘AP’
position. Select ‘Next’ to begin Cylinder 1
bearing clearance test.

Pressure

Vacuum

 NOTICE
The
26.

toggle

switch

has

a

3-way

operation. The center is neutral.
Always toggle past neutral.

 IMPORTANT
DO NOT touch or turn the Crankshaft
Rotator

in

any

direction

until

instructed to do so via KDS. DO NOT
touch

the

clearance

gauge,

if

touched, an error may occur.
27.

The KDS screen will prompt to change the
‘AP/VC’ switch to the ‘VC’ position.
Select ‘Next’ to complete. There are three (3x)
rounds per cylinder to complete.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 18 of 23

BEARING CLEARANCE TESTER PROCEDURES
28.

Once Cylinder 1 test is completed, the KDS will
prompt to take a picture of the tested cylinder.
Select ‘Take a picture’.

29.

Carefully remove the Test Hose and the Probe
Rod from Cylinder 1.
The KDS will request to insert the Probe Rod
into Cylinder 3 and prompt to find TDC again.
Repeat steps 16-19.
Repeat steps 23-28 to test Cylinder 3 and
switching from ‘AP → VC’ and take cylinder
photo.

30.

Carefully remove the Test Hose and the Probe
Rod from Cylinder 3.
The KDS will request to insert the Probe Rod
into Cylinder 4 and prompt to find TDC again.
Repeat steps 16-19.
Repeat steps 23-28 to test Cylinder 4 and
switching from ‘AP → VC’ and take cylinder
photo.

31.

Carefully remove the Test Hose and the Probe
Rod from Cylinder 4.
The KDS will request to insert the Probe Rod
into Cylinder 2 and prompt to find TDC again.
Repeat steps 13-16.
Repeat steps 23-28 to test Cylinder 4 and
switching from ‘AP → VC’ and take cylinder
photo.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 19 of 23

BEARING CLEARANCE TESTER PROCEDURES
After completing the test of all four (4)
cylinders, the KDS will prompt to check the
crankcase oil level and to select the appropriate
check box on the screen. Select ‘Next’.

If the test result displays “PASS”, capture the
screen image/screenshot for record keeping.
Select ‘Finish’.
•

Re-install all removed parts in the
reverse order of removal

No further action is required
If the test result displays “NO PASS”, capture
the

screen

image/screenshot

for

record

keeping. Then proceed to replace the engine
assembly per the instructions.
Select ‘Finish’.
Replace the engine assembly.

 IMPORTANT
Save a copy of the screenshot for your
records. It may be required to submit
with a PWA. Attach to the RO hard
copy.

 NOTICE
If the KDS is not connected to the internet, up to five (5) results will stay pending in the
queue until the KDS is reconnected with the “Special Inspection” application open, before a
sixth (6th) test can be conducted.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 20 of 23

BEARING CLEARANCE TESTER PROCEDURES
Calibration Procedure:

 IMPORTANT
Before starting, ensure that the SST has no power cable or air hoses attached and that the power
switch is in the ‘OFF’ position. Follow the calibration procedure as outlined in this bulletin. Failure
to do so will result in an unsuccessful calibration.

 NOTICE
Do not open the SST unless it is for calibration purposes. For assistance, contact the GITA Support
Line at (888) 542-4371.
1.

Remove the SST cover’s two (2) hex side screws
(A) on one side and the four (4) hex bottom
screws (B) located on the bottom four sides of
the SST.
Two (2) screws (A): 2.5mm hex
Four (4) screws (B): 3.0mm hex

A
B

Six (6) hex screws total.

2.

Lift up to remove the SST cover to access the
internal adjustments for calibration purposes
only.

 NOTICE
Only adjust the knobs described in
this bulletin. Do not touch any other
component(s).

3.

Ensure that the power switch is in the ‘OFF’
position.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 21 of 23

BEARING CLEARANCE TESTER PROCEDURES
4.

Follow the order of the power cable and air
hose connections as follows:
DO NOT change the order below.
1.

Connect the main air compressor hose
to the SST.

2.

Connect the 12V power cable to a good
battery power source.

3.

Connect the test hose to the SST.
(Connecting the dial gauge/probe rod is
not required)

5.

Switch the SST power switch to the ‘ON’
position.
Then switch the AP/VC switch to the ‘VC’
position.

AP: Pressure
VC: Vacuum
Shown w/Digital Display

6a.

Check the ‘VC’ gauge and confirm that the
reading is between -73 ~ -83kPa.
Note: The gauge has a red overlay decal to
show highlight the recommended setting.
If

the

gauge

is

reading

within

the

6b.

recommended specification, proceed to step 7.

6c.

If the gauge does not read within specification,
adjust it by pulling the knob shown and then
decrease (-) or increase (+) as needed.
Be sure to push the knob
downward to lock it after setting.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 22 of 23

BEARING CLEARANCE TESTER PROCEDURES
7a.

Keep the SST power switch in the ‘ON’ position.
Then switch the AP/VC switch to the ‘AP’
position.

AP: Pressure
VC: Vacuum
Shown w/Digital Display

7b.

Check the ‘AP’ gauge and confirm that the
reading is between 0.1 ~ .011MPa.
Note: The gauge has a blue overlay decal to
show highlight the recommended setting.

7c.

If

the

gauge

is

reading

within

the

recommended specification, proceed to step 8.

7d.

If the gauge does not read within specification,
adjust it by pulling the knob shown and then
decrease (-) or increase (+) as needed.
Be sure to push the knob
downward to lock after setting.

8.

The calibration procedure is now complete.
Shut the SST to the ‘OFF’ position.

9.

Remove the 12v power cable first from the
power source and then disconnect the air
hoses.

10.

Re-install the SST cover in the reverse order of removal.
DO NOT overtighten the cover retaining screws.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020

Page 23 of 23

BEARING CLEARANCE TESTER PROCEDURES
REQUIRED TOOL (INDIVIDUAL COMPONENTS):
Tool Name

Figure

Engine Bearing Clearance Tester
(Body Only)

Comments

KQ231 2T110QQK

Probe Rod
(M12 for GDI and Theta II MPI
Hybrid engines)

Probe Rod
(M14 for MPI engines)

KQ231 2T101QQK

KQ231 2T107QQK

Crankshaft Rotator

KQ231 2T102QQK

Dial Gauge

KQ231 2T103QQK

Dial Gauge Tip

KQ231 2T109QQK

Power Cable

KQ231 2T104QQK

BCT Kit

KQ231 2T100QQK

Small Air Port Adapter

KQ231 2T108QQK

For troubleshooting assistance, contact the GITA Support Line at (888) 542-4371.
For replacement parts, contact Snap-On Tools at (888) 542-1011.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SST067 (Rev 2) All Applicable Models March 2020