Posted by KEB1 on November 13, 2008 at 14:24:22 from (192.91.171.36):
In Reply to: B275 dash posted by ShaneGreen on November 11, 2008 at 19:22:28:
Be careful wiring the glow plugs. There are two contacts on the top of each plug...one is the metal ring and the other is the metal stud that the nut screws onto. The two wires on each plug need to be separated by the ring shaped insulator.
Assuming you still have the original jumpers, there will be two sizes of rings on the ends. The order is, starting from the front:
#1, outer connection - small ring, connecting to the engine block
#1, inner connection - large ring, connecting to the large ring (inner connection) on #2
#2 outer connection - small ring, connecting to the outer connection on #3
#3 inner connection, large ring, connecting to the inner connection on #4
#4 outer connection, wire to dash indicator.
If the original jumpers are missing, just wire them in series. These plugs don't care which way the current flows as long as they're not connected directly across 12 volts.
If someone wired them wrong, they've probably burned out the dash indicator by shorting it to ground, as happened to mine. Fortunately the break was close to one end of the indicator/resistor wire, so I just moved the unbroken end into the terminal. Might make the plugs run a little hotter, but not much.
Just got new plugs at NAPA, Champion CH-28, $16 each.
Some one had been using ether on mine, also. I finally got it to fire the other day without ether, am making progress. Compression is a little low but consistent across all four cylinders, which doesn't help the hard starting problem. I also think the injectors are probably clogged, which doesn't help either. If running a couple tankfuls of fuel with injector cleaner doesn't help, I'll probably have to have the injectors rebuilt.
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