VIDEO: Rotary R501N Speed Changer HD Demo

Sept. 10, 2018

Rotary Lift gives a video demonstration of the R501N Speed Changer HD.

Rotary Lift gives a video demonstration of the R501N Speed Changer HD.

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Fuel trim analysis & MAF testing

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Figure 2 - Baker Electric vehicle

Diagnostics and Drivability

The electrified future of automotive maintenance

June 5, 2025

The cylinder head was removed, and the valve train was inspected. Cylinder No. 3 exhaust valve had excessive stem-to-guide clearance. This allowed the No. 3 exhaust valve to rock along the seat and created an intermittent sealing issue. The cylinder head requires reconditioning and/or replacement. These cylinder heads are a known issue so replacement is prudent.

Solved: A Jeep Cylinder Misfire

Brandon Steckler

May 29, 2025

Figure 1- All communication faults should begin with a vehicle-wide all-DTC scan. Often, scan results like this offer the common node(s) in which the non-faulted nodes are complaining about.

Detecting a Jeep Grand Cherokee's Communication Faults

Brandon Steckler

May 21, 2025

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