In part one of we went into how an engine moves air, common ways to increase airflow, and why increasing airflow increases operating efficiency. At the end of the last article I mentioned compressors used to increase air charge into an engine and thus increase power and efficiency. Lets go into specifics of the two common types of compressors used and whats needed to make them function, the differences between them, and the benefits of either and why.
The mission of MachineWhisperer is to act as a resource for the exchange of knowledge in maintenance, diagnosis, repair and upgrade of most common machines.
In direct opposition to a 'throw-away' society: through knowledge, empowering people to interact with machines in a new way to reduce resource use and abuse.
Together, lets find the path of least environmental, economic, and social damage while allowing machines to assist us in living better for longer.
Showing posts with label turbocharger. Show all posts
Showing posts with label turbocharger. Show all posts
Friday, June 20, 2014
Tuesday, May 13, 2014
Warm it Up, Cool it Down, Keep it Happy...
Turbochargers
are a great way to add lots of fun and power to your vehicle,
however, they also need some special care to last a reasonable amount
of time and prove reliable over the long run. Turbos need extra attention, but all machines can benefit from the same care that keeps a turbo unit happy.
The other day I went to visit a good friend and as usual, I got to hear about all his latest mechanical woes. Apparently, my buddy’s mechanic says he needs a new turbocharger on his Subaru- AGAIN. This is the third turbo and second engine in 60,000 miles. My only question- since I know he runs a decent synthetic engine oil- was 'Do you religiously let it warm up and cool down for a few minutes every drive?' He looked at me curiously, and said, 'No I don't, thats a waste of fuel isn't it?'
Friday, April 4, 2014
What does 2 minutes cost? Pt 2
Welcome back for part 2 of Warm-ups:
Tuesday we got started on the importance of warm-ups, today we'll conclude that thought and hopefully convince you to waste some fuel to save some engine.
Engine parts need to warm up slowly and evenly and turbochargers are another important piece of equipment that should have this rule implemented every start. A turbo on a small VW diesel can spin at over 160,000 RPM, larger turbos somewhat slower. Tolerances are VERY tight and a slight warp or wobble can be supremely catastrophic- explosive or fiery mess like. A fast heated turbo can suffer from rapid over heating and siezing of the exhaust end of the shaft as it heats and expands while the bearings/bushings are still cold. Shaft and bearings must warm-up together to keep fitment correct. Most commonly though, the turbo shaft heats first, swells,and proceeds to gall and grind the bearings or even seize up solid if not allowed to heat up slowly and evenly.
Tuesday we got started on the importance of warm-ups, today we'll conclude that thought and hopefully convince you to waste some fuel to save some engine.
Engine parts need to warm up slowly and evenly and turbochargers are another important piece of equipment that should have this rule implemented every start. A turbo on a small VW diesel can spin at over 160,000 RPM, larger turbos somewhat slower. Tolerances are VERY tight and a slight warp or wobble can be supremely catastrophic- explosive or fiery mess like. A fast heated turbo can suffer from rapid over heating and siezing of the exhaust end of the shaft as it heats and expands while the bearings/bushings are still cold. Shaft and bearings must warm-up together to keep fitment correct. Most commonly though, the turbo shaft heats first, swells,and proceeds to gall and grind the bearings or even seize up solid if not allowed to heat up slowly and evenly.
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