October_2021 - 47

the solenoid was either not moving (or
not moving far enough) to enable proper
high-pressure oil build-up.
Tear-down revealed contamination of
the IPR that led to the seizure of the valve.
This was a direct result of utilizing the
taller aftermarket oil filter cap in conjunction
with a shorter OE-style filter. This
combination does not allow for proper
compression of the oil filter bypass valve
and therefore allows for quick oil drainback
to the sump as well as a complete
bypass of the oil filter during engine operation.
This puts an engine that is highly
reliant on clean oil to operate correctly
in a bit of a predicament, to say the least.
Injectors 5 and 7 were damaged due to
this unfiltered oil circulating the engine
as well. Repairs, including installation of
the proper OEM oil filter cap and filter,
were performed with the help of the OTC
6770 kit and it's IPR socket, glow plug,
and injector tools. The oil filter cap was
installed using a socket from the Lisle
13270 filter cap socket set.
Once again, the right combination
of SI, tooling, and techniques led to
a diagnosis and resolution of the customer's
complaint in an efficient and
timely manner.
BONUS TIP: TORQUE
CONVERTER BOLTS TRICK
I've always been one who loves learning
some of the inexpensive tips and tricks for
getting a job done more efficiently. A trick
I learned a while ago while I was working
on trash trucks (mainly MR Mack trucks
equipped with an Allison automatic) was
to insert a cardboard paper towel roll into
the access port on the bell housing when
installing the torque converter bolts to
avoid the bolts dropping down and creating
a world of aggravation. Cheap?
Yes. Incredibly effective and labor
saving? Absolutely.
Even a simple trick like a paper towel
roll serves to demonstrate that diesel
diagnostics and repair can become more
profitable by keeping up on training and
tooling investments as well as fostering
an innovative and problem-solving mindset
in not only yourself but that of fellow
technicians. It is not always the newest,
shiniest, or fanciest tools that get the job
done correctly but rather the right tool at
the right time with the right mindset.
CHRIS GROFF is a
technician with Lykon
Automotive in Pennsylvania
and runs the Science of
Diagnostics channel on
YouTube. Groff began in the industry 15
years ago with an independent repair shop
before attending the Pennsylvania College
Of Technology for Caterpillar diesel. After
working with heavy duty trucks and John
Deere equipment, he was drawn back to the
automotive repair segment by ADAS and
the continued advancement of technology.
cgroff@scienceofdiagnostics.com
Dorman HD Solutions
and Diesel Laptops
DIESEL DECODER,
NO. 904-SCAN
106
SP Tools
DIESEL EXHAUST BUNG
RETHREAD KIT, NO. 16000
107
Launch Tech USA
X-431 TORQUE AUTOHD
109
OEMTOOLS
8-PC NOID LIGHT SET,
NO. 37161
108
www.VehicleServicePros.com OCTOBER 2021 PROFESSIONAL TOOL & EQUIPMENT NEWS 47
http://www.vehicleservicepros.com http://www.VehicleServicePros.com

October_2021

Table of Contents for the Digital Edition of October_2021

Editor's Note
New Products
Diagnostic Tech
Tool Briefing
Tool Reviews
People's Choice Winners
Category Spotlight
Bit-Time Boxes
October_2021 - 1
October_2021 - 2
October_2021 - 3
October_2021 - 4
October_2021 - 5
October_2021 - 6
October_2021 - 7
October_2021 - Editor's Note
October_2021 - 9
October_2021 - New Products
October_2021 - 11
October_2021 - 12
October_2021 - 13
October_2021 - 14
October_2021 - 15
October_2021 - 16
October_2021 - 17
October_2021 - 18
October_2021 - 19
October_2021 - 20
October_2021 - 21
October_2021 - 22
October_2021 - RSC1
October_2021 - RSC2
October_2021 - 23
October_2021 - 24
October_2021 - 25
October_2021 - 26
October_2021 - 27
October_2021 - 28
October_2021 - 29
October_2021 - 30
October_2021 - 31
October_2021 - 32
October_2021 - 33
October_2021 - 34
October_2021 - 35
October_2021 - 36
October_2021 - 37
October_2021 - Diagnostic Tech
October_2021 - 39
October_2021 - 40
October_2021 - 41
October_2021 - Tool Briefing
October_2021 - 43
October_2021 - 44
October_2021 - 45
October_2021 - 46
October_2021 - 47
October_2021 - Tool Reviews
October_2021 - 49
October_2021 - 50
October_2021 - 51
October_2021 - People's Choice Winners
October_2021 - 53
October_2021 - 54
October_2021 - 55
October_2021 - 56
October_2021 - 57
October_2021 - 58
October_2021 - 59
October_2021 - Category Spotlight
October_2021 - 61
October_2021 - 62
October_2021 - 63
October_2021 - 64
October_2021 - 65
October_2021 - 66
October_2021 - 67
October_2021 - 68
October_2021 - 69
October_2021 - 70
October_2021 - 71
October_2021 - 72
October_2021 - 73
October_2021 - Bit-Time Boxes
October_2021 - 75
October_2021 - 76
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