Page 103 – Mechanics Hub

Using an Aspirin to Help Change a Thermostat??

I had a 574 IH with a d239 engine and it would take hours to get it full of coolant. With wet sleeves, I didn’t like running it with an air pocket in there some place. The aspirin took care of that problem and ill explain below……. When changing a thermostat in an engine, press… Continue reading Using an Aspirin to Help Change a Thermostat??

Mobile Mechanic

Spectacular truck crash at 11foot8 bridge

This is one of the more intense crashes of overheight vehicles at the Gregson St Trestle I managed to capture on video. The truck came hurtling at the bridge at maybe 40 to 45 MpH and was about a foot too tall. The deceleration to zero MpH is intense. It took two hours to peel… Continue reading Spectacular truck crash at 11foot8 bridge

Prevent Locking Keys in Car When Working on it – Simple Advice

Its a simple, but valuable trick in a mechanics practice that can save some undue stress. Before working on vehicle, roll down one window to ensure that you don’t lock yourself out. This is specifically important with newer vehicles, some of which have an automatic system that locks all the doors when the ignition switch… Continue reading Prevent Locking Keys in Car When Working on it – Simple Advice

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An Introduction to Careers in Heavy Equipment

Are you someone who enjoys working outdoors on a variety of tasks in an occupation that pays well? Are you someone who feels satisfaction looking at a completed project, saying “I helped create that”? If so, you may be interested in a career in heavy equipment. This is an introduction to a series of short… Continue reading An Introduction to Careers in Heavy Equipment

School Bus Mechanic Garage Talk

Allison Transmission Clutch Pressure Test This is an old photo testing clutch pressures on an Allison 3000 series automatic transmission. The pressures would tell the story on clutch slippage and pressure retention when the transmission was at different shifting points. The tool of the day back then was a “ProLink” which was a hand held… Continue reading School Bus Mechanic Garage Talk

A Good Tool Box Protects Your Investment In Costly Tools

Good tools don’t come cheap, so the first job of any tool box is to protect expensive tools from being lost or corroded by the elements.But tool boxes — as well as tool cases, tool chests, tool pallets, tool cabinets and truck boxes — can do so much more. A tool box can organize tools… Continue reading A Good Tool Box Protects Your Investment In Costly Tools

School Bus Emission Warning Lights

The HEST (high exhaust system temperature) warning light and the DPF (diesel particulate filter) or exhaust filter are the two main indicators that tell the operator when a manual regeneration is required. The ECU is programmed to initiate what is called a passive regeneration while the engine is running on the highway or in the… Continue reading School Bus Emission Warning Lights