Alternator Failures: Low Voltage To The Battery
One reason why alternators have a high failure rate is because they’re always working under a load. Generating electricity to recharge the battery, run the fuel pump, injectors and ignition system while powering all of the vehicle’s lights and electrical accessories places a substantial load on the alternator that generates a lot of internal heat.
VW Beetle, Golf And Jetta: Broken Tensioner, Root Cause Of Failure Is Alternator Pulley
This type of failure is the result of severe vibrations in the accessory belt drive system. While a broken tensioner may be the result, the root cause often lies elsewhere in the system.
WAI Expands Coverage For Starters And Alternators
WAI, a leading manufacturing, sourcing and distribution company of rotating electrical, ignition and engine management products, has expanded its coverage for starters and alternators. WAI introduced 108 automotive units, which cover over 27 million vehicles in operation. The company says this depth of coverage brands WAI as one of the largest suppliers of 100 percent new
Alternator Testing: High-Draw Accessories Bringing Change
An alternator is designed to turn at approximately two to three times crankshaft speed. Total alternator output is generally rated at 6,000 alternator rpm. Consequently, a 2:1 alternator drive ratio can usually be found on high-performance engines or constant-speed, over-the-road truck engines where the average engine speed is about 3,000 rpm. For most passenger cars, a 3:1 ratio between alternator and crankshaft speed translates into maximum alternator output of 2,000 engine rpm, which is the engine speed at which most alternators are tested.
Diagnosing Alternator Pulleys
When faced with an illuminated charge light diagnosis on most late-model vehicles, do not automatically assume the problem is inside the alternator and potentially unserviceable. The problem could be the pulley and belt drive system. Neglecting to test and diagnose the pulley can lead to unnecessary replacement.
DENSO Announces 2016 First Time Fit Starter And Alternator Catalog
DENSO Products and Services Americas has released its 2016 First Time Fit Starter and Alternator Catalog. The latest catalog includes 334 new parts numbers for popular imports and domestic models, expanding the company’s alternator product line to cover more than 65 million additional vehicles in operation (VIO) and its starter product line to cover for
Bench Testing Can Reveal If The Alternator Is The Problem
Today’s computer-controlled charging systems tailor the charging rate not only to the electrical demands on the battery and alternator, but also to changing driving conditions. That makes diagnosis much more difficult when something goes wrong. Alternators have one of the highest return rates of any repair part – often because of misdiagnosis.
ACDelco Expands Professional Reman Alternator, Starter Line
ACDelco has introduced 186 new part numbers to its remanufactured alternators and starter offerings. These additions cover application model years 1999-2015 for GM, Chrysler, Ford, Honda, Toyota, Nissan and a variety of other manufacturers. Of the 186 new part numbers, 147 are alternators and 37 are starters. ACDelco Professional new starters and alternators carry a
Valeo Start/Stop Alternators Now Available To The Aftermarket
Ideal for automatic transmission applications, the innovation’s belt drive offers greater stop-start functionality by making it possible to restart an engine while the flywheel is still rotating or the gear is still engaged.
DENSO Introduces ‘PowerEdge’ High Amp Alternator For Medium-, Heavy-Duty Truck Market
DENSO has developed a new high-amperage alternator for the medium- and heavy-duty truck market that is smaller, lighter and more efficient. DENSO says the PowerEdge offers advanced alternator features – proven in the automotive market – like the company’s patented segment conductor (SC) technology, which incorporates a square wire copper stator design. By leveraging DENSO’s