PISTON TO VALVE Everyone knows the clay method for piston to valve checks. Some people like to use a dial indicator with light “checker” valve springs installed, but that method doesn’t tell you about the actual numbers with the real valve spring installed. So, first...

CORRECT BOLT LENGTH Many older, inline engines have water pump bolt holes that go all the way through the front of the block and can easily contact the front cylinder, if the incorrect bolts are used. I have seen a few engines ruined from having the incorrect length...

BALANCER HUB SEAL TOOL Here's a trick to help center the timing cover crankshaft seal, when the timing cover or block has no dowel pins, or the dowel holes do not fit snug on the pins. Take an old damper and hone the center so that it is now a slip fit onto the crank...

MORE ON BALANCER HUBS I have several balancer hubs that I’ve honed for slip fit tools. If you have an engine where there is a timing cover index issue from either poor dowel pin alignment or a crank centerline issue, you can still locate it properly. Remove the dowel...

MOCKUP When I mockup to check for piston to valve clearance or pushrod length, I use cardboard strips to simulate the compressed gasket thickness. I lightly snug down a couple of bolts and save the gaskets for the final assembly. Another handy mockup tip is to wrap...

THRUST WATCH As engine builders we always make sure the crankshaft thrust is proper before assembling the rest of the engine. I believe we should also be measuring it again when it is in the vehicle because there are so many possible flywheel/clutch, torque converter...