"Yes," Gus conceded. "How about
tire and wheel balance?"
Pederson snorted. "Tires and
wheels balance perfectly."
Gus scratched his head. "Why not
let me look at Alf's car?" he asked. He added, to save Big Bill any
embarrassment, "I just want to smell around a bit. Might save me
taking a licking later, when I run into one like it."
Big Bill Pederson put his hand on
Gus's shoulder, while a slow smile formed on his face.
"Years ago," he remarked, "I used to
come around to the Model Garage to get my bicycle fixed. I guess
things haven't changed much."
Pederson brought the car in at
mid-afternoon. Gus left the garage in charge of Stan Hicks, and with
Pederson beside him took the machine out on the highway leading to
Stanfield.
The sleek coupe purred like a kitten. It
should have. It had less than 10,000 miles on the speedometer.
Gus watched the speedometer needle
climb - 50-60-65-70.
At 60 the car's smoothness began
to fade. This wasn't something a man could tack squarely down.
Gus had never heard anything quite like it, yet, yet he realized that it was
vibration.
It could be anywhere - a loose
flywheel, slightly out of line, loose transmission to the bell-housing
studs, worn or dry universal joints, wheel bearings, out-of-balance main, or
the drive shaft. A line of worry began to form about Gus's eyes.
"What did I tell you?" Pederson
said.
Gus took the car back to the garage.
He raised the hood, backed off the motor forward mounts, tightened them so
that they were snug, but not to flatten the rubber cushioning. He put
the car on the hoist, removed the flywheel cover and checked the flywheel
for looseness with a bar. He tightened the studs that held
transmission to bell housing, loosened the rear transmission support,
wiggled it to make sure the transmission fell in line and retightened it.
He greased and checked the universal joints and ran the car in gear studying
the drive shaft.
Then he and Pederson took another run.
The vibration was still there. Gus began to sweat.
Back at the garage once again, he
checked the grease pack of the front wheel bearings, and proper bearing
adjustment. He checked camber, caster, front suspension.
"Sometimes," he said to Pederson, "the
manufacturers fail to pack front wheel bearings - not often, but it does
happen. Now how about front-wheel and tire balance?"
"You check 'em," Pederson said.
"I have."
Gus did check them. Wheels and
tires balanced perfectly. Gus noted that Pederson had attached lead
balancing weights here and there. He scratched his graying hair
thoughtfully.
"Let's try her again," he said.
Gus pulled up at the pumps, beckoning to Stan
Hicks.
"But, Gus," Stan protested, "you can't
put 50 pounds in these tires. Factory spec calls for only 24."
"Sure," Gus nodded, "but let's ride on
50 this trip."
The Tires Balance
Once more on the open road, Gus watched the
speedometer needle climb - 50-60-70-75.
"No vibration," he commented.
"But I can't ask Madsen to scoot
around the country on 50 pounds of air," said Pederson.
"Right," Gus's eyes twinkled.
"We've tacked this vibration down squarely to the tires. The rest is
easy."
"Easy!" echoed Pederson, "I can't buy
that. Tires balance - remember?"
"Sometimes," Gus said, "manufacturers
fail to build a tire right - not often, but it happens. It happens so
seldom that I'd bet my hat there's just one guilty tire on this bus."
Gus pulled an air gauge out of his
pocked. "We'll just let the air out of one tire at a time, down to 24
pounds, until the vibration comes back."
The Vibration Goes Away
Gus knew that one tire in 10,000 or
more may have its ply laps laid together, instead of being separated.
When this occurs it is a mechanic's vibration nightmare. The tire can
be made to balance, but there is a hard spot that pounds the road at high
speeds. When the tire is inflated, rock hard, the hard spot is no
different from the balance of the tread and the vibration goes away.
Out on the road again, the ghost
vibration came back as soon as Gus, after two tries, reduced pressure on the
third tire to normal. Gus smiled triumphantly.
Back of the Model Garage, he replaced
the tire, after cutting into it to prove his point to Pederson.
"You won't even be out the cost of a
tire," he told the used-car dealer. "I handle this brand, and I'm sure
the factory will be happy to replace this one."
That evening Alf Madsen drove in.
"I hear," he told Gus, "that you fixed
this bus, after that knucklehead, Pederson had monkeyed with a few weeks."
"Don't let the corporal kid you,
Lieutenant," he said softly. "Pederson merely brought the car in here for an
exchange on that faulty tire that was causing your trouble. Smart boy,
that Big Bill."
Too Much Talk, Says Gus
Madsen's eyes carried suspicion.
Then a slow smile formed around his lips.
"I've known you a long time, Gus," he
said. "I think that you can lie slicker'n anybody I know, when you
want to."
"And I," Gus told him, a twinkle in
his eye, "used to hold your little pink nose so you could blow it,
Lieutenant, I think that you've been talking too much and too loud lately."
"Maybe I have, at that," Alf Madsen
said thoughtfully, as he drove out.
"Thanks a million, Gus."
END