What Causes Exhaust Manifolds to Glow Orange on a Diesel?

Answer Believe it or not, lightly glowing manifolds are not that uncommon on diesels, particularly if they've been straining under a load. Even on its best day, the average diesel's exhaust gas temperatur... Read More »

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How to Resurface Exhaust Manifolds?

Exhaust manifolds are bolted up to the outlet side of an engine and, as such, are responsible for evacuating the motor's exhaust gasses. Because they are located in the hot, oily confines of the en... Read More »

Removing Exhaust Manifolds?

Work on enough engines and you're bound to run into at least one exhaust manifold bolt that would sooner snap than back out of the block. While any monkey with a cheater bar could simply yank and h... Read More »

DIY Porting Exhaust Manifolds?

Porting the exhaust manifold on a car is a great way to optimize the performance of the engine. When most manifolds are manufactured, they are not optimized for performance, since the amount of tim... Read More »

How to Torque Exhaust Manifolds?

Using a torque wrench to tighten bolts on exhaust manifolds allows for precise setting of the torque, or tightness of the fastener. Both loose and tight bolts can be dangerous, so you must follow t... Read More »