ACtion Magazine - March 2015 - (Page 8)
Did he really just do that???
hile visiting a local shop and taking some pic- and with the extra space left by the V-6 an elongated fan
tures for this edition of AC TION, I got to talking shroud is used to take up the difference from the V-8 modwith one of the technicians who was working els. One day the vehicle owner was tinkering around unon a Chevy Suburban. I told him that this month's theme der the hood, when he noticed that the fan blade seemed
is electric cooling fans, so unfortunately the thermostatic able to turn very easily, even though it was directly conclutch he was replacing was not applicable. However, the nected to the belt and engine pulleys. Thinking this might
story he told me does apply to all
be a problem, he figured it best to get the
fans no matter how they're operated
truck into the shop.
...he thought it was
on a vehicle; even those little ones
He brought the truck in, opened the
that used to be on the front of alterhood, and discussed the situation with the
nators. It was about something that
shop owner and technician. The engine
happened at the last shop he worked
was running while he explained what he
saw, and while doing so he started reachOne of their customers owned an
ing for the fan blade. The shop owner
early 90's GMC pick-up truck; a 2WD, 1500 series with quickly said "Stop, don't touch that fan!" But it was too
a V-6 engine. There was lots of room under the hood, late. The man's hand was already in motion, and right away
they all heard that shrilling sound; tick, tick, tick, tick, as
the fan blades came around, smacking the man's fingers.
Turns out he didn't lose any digits, but sure bruised up
a part of his hand. Luckily the angle at which he reached
was such that his fingers made contact with the trailing
edge of the blades. Had he been standing on the other side
of the vehicle, or had the fan been rotating in the opposite
direction, this story might be a little bit different.
After the commotion of the incident, the technician
asked why he did that. The man said because the fan spun
so easily at home, he thought it was just freewheeling and
he would be able to stop it by hand. Of course, he didn't
figure (or know about) the thermostatic clutch, which had
kicked in as the engine temperature increased.
In the end, things turned out alright, and everyone
learned something in the process.
Ever have something like this happen at your shop?
Send an e-mail to email@example.com and let us know! ❆
ACTION * March 2015
Manager of Service Training
You can reach Steve at
Table of Contents for the Digital Edition of ACtion Magazine - March 2015
Engine cooling systems: Electric cooling fan operating strategies
System Charge Determination
Heavy duty and off road
Letters to the Editor
By the numbers
ACtion Magazine - March 2015