Crankshaft Archives - UnderhoodService
Balancing Combustion Forces

Visual inspection is critical. Any sign of movement laterally is grounds for replacement.

Diagnosing Crankshaft Position Sensors

Modern engines need to not only know the position of the crankshaft, but the position of the camshafts.

The Spin On Spun Bearings

A spun bearing is usually the end result of a chain of unfortunate events.

VIDEO: Belt Failure Due To Crankshaft Pulley

When the rings separate, the alignment of the belts change. This video is sponsored by Auto Value and Bumper to Bumper.

Cloyes Supplies Crankshaft Sprocket For 2020 Corvette

The sprocket is manufactured from SAE 1144 billet steel and has a 22-tooth cut to the ISO-606 Roller Sprocket specification.

OTC Releases New Crankshaft And Cam Tools For Detroit Diesel Engines

The new crankshaft and cam tools are now available throughout North America.

Cranky Crankshaft Seals

Sometimes the least expensive parts are the most time-consuming to replace. This is the case with crankshaft oil seals.

VIDEO: Hydrodynamic Lubrication In Engines

Andrew Markel discusses how an oil filter can change the lubrication in the crankshaft or camshaft bearing surfaces. Sponsored by MAHLE.

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Crankshaft And Camshaft Signals

The key to diagnosing many cranking, no-start and stalling problems found on the late-model import is to understand how the crankshaft and camshaft position sensors function and what their mechanical relationship is to each other.

Demystifying Scopes: Engine Camshaft And Crankshaft Waveforms

Having to remove valve or front cover of an engine to check engine timing marks can rarely be completed in under an hour on most modern engines. But, capturing the waveforms from the camshaft and crankshaft sensors can be completed in under 30 minutes. This diagnostic approach can also diagnose circuit and sensor problems.

Ford: P0315 Crankshaft Code Set On Mustangs

Recently, Ford announced Customer Satisfaction Program 17N01. The program covers 2011-’14 Mustang models with both the 3.7L V6 and 5.0L V8 that have code “P0315 Crankshaft Position System Variation Not Learned” set. The solution involves a “scan tool code clear” and a 10-minute test drive.

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Oil And Direct Fuel Injection

The oil in the crankcase of a direct fuel injected engine can make a huge difference in the health of the engine. The right oil can reduce carbon deposits on the intake valves and keep the engine healthy.

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