Tech

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Mailbag: How to Read Your Vehicle’s Smoke Signals

A.P. Baltimore, MD Q: After I swapped carburetors on my 307 Chevy, I noticed blue smoke coming out of my car’s tailpipes when I accelerate. I always thought too much gas caused blue smoke, and white smoke was oil or transmission fluid burning. Am I correct and can you tell me what’s causing the blue smoke? A:

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Ask Away with Jeff Smith: A Basic Guide to Ignition Advance

I hate to admit that I’ve been working on cars for more years that I care to admit and yet I still don’t understand all the different things about ignition advance. Every time I ask my friends who say they know all about that – I get a different answer. Can you make it simple

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Quick Tech: How to Use a Leakdown Tester

Using a leakdown tester is one of the best ways to assess the health of your engine. Easy to use, a leakdown tester measures how much cylinder pressure is escaping from your cylinders, showing how efficiently your piston rings and valves are sealing the combustion chamber, along with your head gasket. With street engines, ten to twenty

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Mailbag: Engine Prep Tips for Nitrous Oxide

You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re providing some basic nitrous system guidelines. J.H. Huntsville, TX Q: My 1998 3.8L Camaro is pretty fast, but not fast enough! I’ve already added a high lift cam, pistons, and new injectors, plus I plan on getting some cylinder heads

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Trailer Upgrades: Raising Bumpers, Installing New Shocks and Electrical Components

[portfolio_slideshow id=34060] An off-road New Mexico vacation in a camping trailer designed for Jeep and Chevrolet S10 pickups provided the evidence: the trailer desperately needed more stability on the rough terrain and truck’s rear bumper needed raised. The trailer needed shocks and more height. The curved design of the original bumper would sometimes dig into

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Magic Show: How to Install a Flex-A-Lite Black Magic Electric Fan

[portfolio_slideshow id=33903] Sometimes broken and worn out parts can be a blessing, because they give you an excuse to upgrade! That was the situation we were in recently when the fan clutch went out on the 4.7L V8 in our Dodge Dakota. The factory mechanical fan uses a clutch unit that locks up to cool

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