Massey Ferguson TO-20, TO-30 12V Starter Upgrade

April 28, 2017

On the older Massey Ferguson TO-20 and TO-30 tractors, it is common to see the original 6V system upgraded to a 12V system....

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Over Crank Protection Thermostat Wiring

March 15, 2017

Building on the earlier blog post showing the common diagram for wiring a solenoid control relay often seen on the 39MT Delco....

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28SI Alternator Installation Instructions

March 03, 2017

The 28SI Series of Delco alternators is being used as original equipment as well as replacements for the the older 21/22SI, 23SI, 24SI and other....

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Tip: Removing Blind End Bushings

February 23, 2017

Sometimes removing a blind end bushing in a drive end housing or end cap can be difficult. While a chisel may work to cut a....

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Common Valeo Alternator Wiring Diagram

January 16, 2017

We are looking this Valeo alternator wiring diagram up from time to time as replacement units do not always come with these....

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General Alternator Installation Instructions

December 05, 2016


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Ground Activated Solenoids

November 01, 2016

Every once in a while we run into a solenoid a bit different from the common 3 post. The ground activated solenoid can be confusing....

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Replacing 10SI Alternators with Delco 11SI Series

October 25, 2016

The 10SI Series of Delco units can be replaced by Delco's new 11SI Series. These are currently available both in new OE Delco, and new

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Series vs Parallel Explained

October 06, 2016

In our field, especially the heavy duty and agricultural side of things, we are often explaining the difference between batteries in series and batteries in....

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Solenoid Control Relay Wiring

September 27, 2016

Many new replacement units are coming supplied with solenoid control relays. These are the small solenoids mounted closely to....

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Common Delco SI Series Alternator Wiring Diagram

September 22, 2016

We are commonly asked how to wire the Delco SI series alternators upon maintenance or upgrading from an older generator....

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Generator to Alternator Conversion Wiring

September 08, 2016

We have been providing customers with alternator conversions for generator systems for years. This is a great upgrade....

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