by Donnie Hurt | Oct 1, 2014 | CYLINDER HEADS
VACUUM CHECKING PORTS WITH EGR HOLES It’s difficult to vacuum test the exhaust valves on the 5 valve per cylinder VW cylinder head and many other heads due to the EGR hole in each port. I’ve found an easy solution. Save the dried silicone from the tip of the tube of...
by Donnie Hurt | Oct 1, 2014 | TOOLING
NO BUGS I put an aquarium bubbler in the coolant tank on my crankshaft grinder to keep the coolant moving. This keeps the algae from blooming and keeps the coolant better to work with. I used a pair of old main caps wired to the base to form a stand. When I don’t...
by Donnie Hurt | Sep 1, 2014 | CRANKSHAFTS & CONNECTING RODS
BEARING CRUSH AND VERTICAL CLEARANCE One of the most important factors in engine bearing design is a proper fit between the bearing and housing. Except for thrust washers, nearly all bearings are an interference fit. This means the bearing is slightly larger than the...
by Donnie Hurt | Sep 1, 2014 | CAMSHAFTS & VALVE TRAIN
HYDRAULIC ROLLER VALVE LIFTER PRIMING NOTICE (From G.M. tech bulletin) Notice: Ensure each valve lifter is filled with clean engine oil and the valve lifter does not tip over (plunger down) before the installation of the valve lifters. The loss of oil in the valve...
by Donnie Hurt | Sep 1, 2014 | CRANKSHAFTS & CONNECTING RODS
INEXPENSIVE AND EFFECTIVE ROD HEATER This cheap rod heater is one I’ve used for over 30 years. I’ve bought and sold a few traditional rod heaters, but I like this better. It can be used anywhere in the shop. Replacement bottles are available from the hardware store,...
