Crankshaft
Tech Tip: Oil Leak by Crankshaft Seal on Porsche Boxter Engines
Engine oil leaks in area of crankshaft sealing ring on flywheel side may be coming from the crankcase and intermediate-shaft flange bolts.
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Engine oil leaks in area of crankshaft sealing ring on flywheel side may be coming from the crankcase and intermediate-shaft flange bolts.
A Crankshaft Variation Relearn Procedure must be performed if on 1996 and newer GM vehicles if: the ECC was reprogrammed; the crankshaft position sensor has been replaced; or the ECC has been replaced.
After replacing the Crankshaft Position Sensor (CKP) and/or connector to correct another problem, the engine turns over, but does not start. The fuel injectors pulse a couple of times when the engine starts cranking, then they stop pulsing. There is an rpm reading on the scan data for a split...
With OBD II, there's no missing misfires. Most engine control systems with OBD II monitor the speed of the crankshaft between cylinder firings to detect misfires. The powertrain control module (PCM) notes the relative position of the crankshaft via the crankshaft position sensor (CKP) each time a trigger pulse is...
Whether in a gasoline or diesel-powered engine, the crankshaft is a key component. With diesels, the crank is typically thought of as bigger, heavier and harder to get in the aftermarket. Some preconceptions are factual, say experts, while others are unfounded.
Some customers may comment on a whine, whistle or ringing-type noise from the front of the engine that increases in intensity as engine rpm increases. This noise is most audible standing in front of the vehicle with the hood opened. If the noise fades into the ambient engine noise by...
Balancing used to be the exclusive domain of the performance engine. Stock grocery getters rarely were considered candidates for balance jobs. But that thinking has changed. Even standard, run-of-the-mill automobiles are sent from the OE with precisely balanced engines. And customers have come to expect nothing but the same when...
With Snap-on's latest software upgrade, Bundle 9.4, professional technicians have the ability to reset the CKP when the crankshaft position sensor and certain other GM engine components are replaced. This capability is now available for a great number of 1998-2009 GM vehicles.
A project car in the form of a WRX/STI shows that Z Sport in Everett, WA, is all about
This bulletin involves rotating all engine exhaust valves, replacing the valve spring retainer locks with a new design to increase valve rotation at lower rpm, inspecting/replacing the MAP sensor (as necessary), and decarbonizing the combustion
