Balloons Belong at Birthday Parties Not in Transmissions I rebuilt a 454 GM engine that went into a motorhome application. It ran well, and no problems immediately appeared. But later on, it was towed in with a main bearing failure in the thrust area. I gave the...
How to Resize OHC Oversize Lifters Occasionally, you will need to buy lifters to make valve adjustments because the one piece tappet is of a specific height and must be changed. This is the case with most overhead cam engines these days. But what do you do when the...
Keeping Valve Locks in Place By using marine grease on the end of a thin flat head screwdriver, you can rest the lock on the grease while you assemble heads with puck style lifters. This way you are not constantly dropping the lock down into the head. Greg Goss Engine...
Manufacturer Shop Solution: Standard and Reverse Rotation Marine Engines – What to Look For Boats with twin engines usually turn in opposite direction so the torque reactions of the engines cancel each other out. The following four drawings show how the crankshaft and...
Save Those Old, Failed Parts I suggest keeping a few examples of failed parts around your machine shop so you can show a customer first hand what happens in his engine. Below is a photo of a failed lifter, a prime example and perfect chance to teach your customers the...
A Spectacular Method of Removing Broken or Seized Bolts I use a direct method to remove broken and seized bolts or studs in iron or steel; a cutting torch applied directly to the stub-end. Once the stub is glowing bright red, I hit the oxygen lever and a fountain of...