Been having trouble with mine too. First of all, see that the relay is really passing current. Mine was bad. Sounded, worked OK, but current not reaching glow plugs. Finally figured that out, and replaced relay. Even with 5 plugs working, starts pretty reliably. Bypassed the self timer with a simple switch, couple years ago. Those timers aren"t long lived, and they want a fortune for them. I can count to 8 seconds as well as a timer can, then I switch it one for a couple second bursts while starting, and the first minute or so of running. I have found the most reliable way to test glow plugs is with a 12 volt test lite. Connected between the + battery terminal, and the spade terminal on the glow plug (unplugged from harness.) Light lights, glow plug is good. I had a nightmare a few years back. Air kept collecting in fuel filter. Mine has aftermarket filter - looks like a small version of a gasoline storage tank filter, plastic globe, centrally mounted filter element. Finally traced it to the intake unit in fuel tank. Never did find what was leaking to allow air into the line. Replaced intake line, fuel guage unit, finally solved the problem. If you don"t have electrical engine heater, you should get one. When temps are in the 20"s or lower, may mean the difference between starting and not starting. Mine is 550 watts, in block unit. three hours, and the thermostat housing is warm to the touch. Makes a heckova difference.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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