Quick Tip: Injector Gaskets

Injector Gaskets, Where Are You? You just finished installing reconditioned injectors on a HPDI VZ225TLR. You were letting the engine idle while checking fuel pressure and noticed a sound coming from the engine. It sounds like a compression leak near the cylinder heads. You don’t see any indication it is the head gaskets and don’t […]

Quick Tip: Hex Driver

There are a few places on our motors where hex drive fasteners are used, typically on upper casing aprons and water intake screens. A thread sealant is applied to the apron fasteners to prevent salt and mineral build up from making the screws impossible to remove. While minimizing the effects of salt, the sealant can […]

Identifying Fuel Filter Locations

Fuel delivery problems have been around since the first internal combustion engine was introduced to mankind. Changing fuel formulations and the complexity of modern outboard motors, plus the amount of use (or, more correctly, the lack of use) by the typical consumer have increased the need to be very thorough when servicing a fuel system. […]

Cylinder Head Bolt Removal

Before you torque the bolts you typically have had to remove them first. Cylinder head bolts can be difficult to remove, and it seems they get even tighter with use. Plus, the bolts are recessed in a pocket, making it difficult to keep the T55 Torx® driver aligned with the bolt while applying the pressure […]

PTT Relay

The Service manual provides the correct procedure for testing the Power Trim & Tilt (PTT) relay, but the procedure can be a little vague. In this article we will provide more detail about operation and testing. Relays are an electromechanical device commonly used to allow a circuit with a small amount of current flow to […]