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If you happen to have a GM product made in the 70's I have a tip for you if it starts slowing down, getting less fuel mileage, or just refuses to start.

At the independent shop I worked at we had a 1972 Chevy pickup pulled in...It wouldn't start, it cranked ok, but the engine wouldn't start up and run.

Naturally, we tuned it: points, plugs, condenser, wires, rotor, and distributor cap.

No change...it just cranked...didn't even act like it wanted to start...I figured it must just be tired.

The man I worked for had been in this business for the past 35 years.

He overhauled the carburetor and replaced the fuel filter.

No change.

The customer came up, and told us that it had been using a lot more gas and oil of late, so suggested we just rebuild the engine.

We did.

No change...now this was getting embarrassing.

This was a 350 small block engine...it had a cross-over exhaust pipe...

as each pipe came from the exhaust manifold, they came together just under the cab, and only one pipe went out under the truck...with the muffler and tail pipe.

My boss told me to disconnect the exhaust from each manifold.

I did, and guess what?

The engine started, it made a heck-of-a-lot of noise, but it was running.

Mr. J. told me to take the hack-saw and cut the exhaust pipe into, just down from the flange that connects to the manifold.

You won't believe what I found.

The exhaust pipe had a liner in it...In other words, the exhaust pipe was two pipes in one.

The inner pipe had separated and had closed off the flow of exhaust...choking the engine.

When the exhaust can't escape, the engine won't start and run...like putting a potato inside the tail pipe...I saw that in a movie one time.

We replaced the exhaust manifold cross over pipe, from the manifold to the muffler, and the vehicle ran just great.

This was a fairly expensive procedure, and not a normal job, but no one, not even the techs at the dealership, knew that GM had put the double-pipe on their vehicles at this time.

Note: A catalytic converter will stop up and cause the same problem on newer vehicles.

Tommy Sessions has been in auto repair since 1970. He publishes Auto Repair Answers Newsletter so you can learn how to keep your vehicle looking new, running safely and efficiently, while you save money and time...also, learn how to avoid shop rip offs. Don't be at the mercy of the dealerships and auto repair shops...they will have more respect for you.
http://www.auto-repair-answers.com

'67 Chevrolet Impala Goes Supernatural

The 1967 Chevrolet Impala went the extra mile to become a supernatural car. Not that it became a shaman or something magical - the Impala is part of a paranormal television series dubbed ‘Supernatural.’

In the Supernatural show, Winchester brothers travel the highways and minor roads of North America in quest of their missing father. Along the way they stumble upon various evil spirits with which they fight.

Now in its second season, Channel 10’s Supernatural intends to show other big stars aside from brothers Dean and Sam Winchester. And that big star is the ’67 Impala - a big black American muscle car. Many viewers wondered what kind of car the Winchester brothers drive. Actually, the car owned by older brother Dean is, in fact, a four-door 1967 Chevrolet Impala.

When the car was destroyed at the end of the first season, Eric Kripke, the creator of the show Supernatural, divulged he was inundated with letters from fans wanting to know if the vehicle was going to make a return. “When I was originally writing the show I wanted to give the guys an American muscle car,” Kripke said. “My first choice was a '65 Mustang. My neighbor said it had to be a '67 Impala because you can put a body in the trunk. “He says, 'You want a car that, when people stop next to it at the lights, they lock their doors'.”

The Impala, launched in 1958 as an upmarket, sporty product line for Bel Air coupes and convertibles, features classic styling cues that include six taillights. In 1959, the car became a separate model in both two- and four-door versions.

Eventually, the car became the best-selling car in the Chevrolet lineup. Starting in 1960, the car holds the best-seller title for the next decade. To stress, from 1958 until 1966, sales of the Impala were in excess of 13 million units, more than any other full-size car in the auto history. In 1965, the car etched an all-time annual sales record of more than one million units in the United States. Up until the present time, the record of more than 13 million sales has never been surpassed.

In 1973, when energy crisis became a big headache, sales of the car declines. This event has prompted the automaker to redesign the car to meet the changing demands of the purchasers. The production of the car continues to this day. The 1967 model as featured on the show came with a choice of inline six-cylinder as well as the famous Chevy small-block and big-block V8s.

The Impala may not be featuring some renowned parts like the Chevrolet pickup overhead racks but the car makes history by itself. Ed Cole, Chevrolet's chief engineer in the late 1950s, defined the Impala as a "prestige car within the reach of the average American citizen.”

Five black Impalas are utilized in the production of the Supernatural. In the pilot episode, the Impala's huge trunk is revealed to hold a traveling armory of weapons used by the Winchesters to fight the supernatural forces. The Impala has a Sedgwick County, Kansas license plate KAZ 2Y5, a reference to Kansas, the lead stars’ home state.

The Impala has been nicknamed the Metallicar by fans of the show. The car takes its name from the speedy antelope found on the grasslands of central and southern of Africa. The two-door Super Sport version of the car is credited for the inception of the muscle car milieu. For the 2009 or 2010 model year, the Impala will be heavily redesigned. Sales are expected to begin by 2008.

About the Author

Anthony Fontanelle is a 35-year-old automotive buff who grew up in the Windy City. He does freelance work for an automotive magazine when he is not busy customizing cars in his shop.

Hasting ring installation on piston for chevy small block and ? about thrust bearing?

Ok i know how the oil ring goes on (bottom) notch. now there are two other rings one marked the other not. Does the one that marked go in the center hole facing up and the one that is not marked go in the top notch?

thrust bearing is this the same bearing the rear main seal is in hence rear main?

The thrust bearing is the bearing in the aft end of the crankshaft. It is not the same as the rear main Seal. The front of the manual transmission goes in the thrust bearing. The easiest way to remove it is to pack the hole with grease and drive a manual transmission front shaft in with a hammer.

I seem to remember dot up. I think it may be on the lower compression ring, usually beveled ring.

Going Out Guide for July 20, 2010
If you're looking for a restaurant in Bethesda, you're probably not expecting a cheap meal. But each year during Bethesda-Chevy Chase Restaurant Week, which starts Monday, some of the area's best restaurants offer mouth-watering meals that won't make you cringe when you see the bill. Check out our... Holidays - Fourth of July - Microsoft - Chicago - Paris

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