Vol.
27, No.10 December 1999
Where
Have We Been-
Where Are We Going?
RADIATOR
REPORTER'S ANNUAL REVIEW OF THE INDUSTRY
In terms
of repair shop revenue and employee wage growth, 1999 marks the
radiator repair industry's best year of the decade. Shop revenues
are up sharply from previous years, and average employee pay has
jumped, too. All in all it's a rather remarkable accomplishment
given that the average radiator repair shop has been hammered
by years of increasing competition and industry consolidation.
For the year,
the number of rad shops grossing over a million dollars soared
71%. Monthly wages paid to rad shop workers jumped an average
of 5.6%, while average hourly labor rates climbed an impressive
10%. After a decade of ups and downs, 1999 continues a three-year
run of relatively good news from rad shop owners. All evidence
suggests a turnaround trend, not a statistical fluke.
FROM RADMAN
TO COOLING SYSTEM SPECIALIST
In a bid
for profits as well as survival, rad shop owners are doing a lot
more nowadays than simply patching up or selling radiators. Revenue
from AC, heater, electrical and cooling-related engine work has
never been higher.
At many radiator
shops, net profit from non-radiator work now exceeds that from
radiator recores, repairs and replacements combined. Radiator
service of all types-from rodouts and recores to box sales-has
become secondary to the larger task of servicing a vehicle's entire
cooling system.
The transition
from benchman to "cooling system specialist" has required a substantial
investment in tools, training and information resources. Where
rad shops once functioned with little more than a torch and test
tank, now the tools of the trade include scan tools, CD-ROM databases,
and infrared thermometers, to name just a few. Changes in vehicle
technology have had a dual effect on rad shop owners.
On the downside,
the majority of newer radiator designs hold up much longer than
their copper/brass predecessors, which translates into less work
for the traditional benchman. But newer vehicle cooling systems
are becoming increasingly complex. and this complexity opens the
door to a wide range of diagnostic and repair opportunities beyond
the actual heat exchanger. The key. of course, is to acquire the
tools and skills to service the entire cooling system.
This shift
in repair focus hasn't come easy for many radmen, but it has become
a business necessity driven by the needs of today's consumer,
who can buy a radiator at dozens of local businesses, not to mention
from Internet websites and nationwide toll-free numbers. As incredible
as it sounds, we are no longer the consumer's first thought when
it comes to buying a radiator. And when it comes to repairing
or recoring, most consumers don't even know they have the option.
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TABLE
OF CONTENTS
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Where
Have We Been-
Where Are We Going?
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page
109 |
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| GM 34-Inch
Crossflow Tips |
page
111 |
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| Service
Tips and Fixes |
page
112 |
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Engine
Overheating on Dodge Durango
Some GM HVAC "Problems" Attributable to Operator Error
GM Warns Against Reprogramming PCMs
Whistling Noise from AC on 1995-96 Dodge/Plymouth Neon
GM 454 Engines Use Standard and Reverse-Rotation Water Pumps
GM 2.4L Water Pump No Easy Job
Check Valve Fixes 1999-2000 Jeep Cherokee HVAC Airflow Problem
Detroit Diesel 8.2L Oil in Coolant
Temperature Gauge Fluctuation and "Thumping" Noise on Ford
Ranger, Explorer
Cold-Weather Transmission Oil Cooler Bypass Kit for RWD
Dodge Trucks, Jeep Cherokee
GM 4.1 L, 4.5L and 4.9L Head Gasket Tips
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| Radiator
Roundup |
page
116 |
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Big
Difference Between Ford and GM Radiator Repair Policies
Visteon Becomes Midas' AC Supplier
Cleaning Dashboard May Trigger Airbags on 1998 Volvo Models
Evans Non-Aqueous Engine Coolant
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| GM-Approved
Coolant Recycling |
page
118 |
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| The Readers
Write |
page
119 |
Evans
Non-Aqueous Engine Coolant
For years,
race car drivers and competition engine builders have known about
Evans non-aqueous coolant. It's a propylene glycol-based coolant
which, as its name implies, is intended to be used without water.
Recent publicity
materials written for the general consumer market may trigger
inquiries from your regular customers, even though Evans coolant
may not be suitable for their vehicle. Here's why.
Evans non-aqueous
NPG coolant is "thicker" than traditional automotive engine coolants.
To overcome the increased viscosity of Evans NPG coolant, certain
radiator and water pump modifications may be required. For example,
non-aqueous coolant isn't recommended for radiators with tubes
smaller than one-half inch, and the use of NPG coolant often requires
a stronger water pump and special high-flow thermostat.
Evans sells
its NPG coolant as a "system" which includes optimized high-flow
radiators with 1" or 11/4" tubes, water
pumps with enlarged coolant passages and extremely efficient impellers,
and special expansion tanks to accommodate the coolant's rate
of expansion.
For race
car owners, the Evans system delivers cooling system performance
far better than traditional coolants mixed 50/50 with water. The
boiling point of Evans NPG coolant is 370° F in an unpressurized
system. This eliminates localized hot spots inside the engine
caused by coolant vaporization. Also, because water is a catalyst
for virtually all types of cooling system and metals deterioration,
the use of non-aqueous coolant offers protective benefits unavailable
from mainstream automotive coolants, even the newer organic-acid
coolants sold as "long-life" products.
For the average
Joe driving a car or truck with a wimpy water pump and small "high
efficiency" 318" or 5/16" radiator tubes, use of non-aqueous coolant
is not recommended. Evans says it is working on a "thinner product
that could be used by average consumers without expensive cooling
system modifications. This "consumer version" of Evans NPG coolant
may yield significant advantages over today's automotive coolants.
Additionally,
Evans is working on a heavy-duty non-aqueous diesel coolant that
will provide the same boilover and corrosion protection benefits
of its racing coolant. Steve Pressley, V.P. and general manager
at Evans, says most HD truck radiators are perfectly suited for
a non-aqueous coolant because of their large tube size and large
headers. Class 7 and 8 truck engines also feature rugged high-flow
water pumps and large coolant passages, so higher-viscosity non-aqueous
coolant can be used without expensive cooling system modifications.
As cooling
system specialists, we'll be hearing more about non-aqueous coolants
as time goes on. Bear in mind that for most passenger car and
light-truck applications, Evans NPG coolant is not intended as
a "drop-in" replacement for traditional coolants mixed with water.
For additional details, contact RR or call Evans at 610/323-3114.
Evans also has an Internet website at www.evansccoling.com.
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