|
Disconnect the glow plugs and crank it, see if that keeps the fuse from blowing. The old pre 82 Mercedes diesels had wire loop glow plugs. When the injector spray pattern was bad the fuel would spray on the glow plugs and burn the wire loops in half. Benz went to pintle type glow plugs which eliminated the problem, but the cause was not the glow plugs but the bad injector pattern and the DESIGN of the glow plugs.
If you unhook the glow plugs only it should either blow or not blow the fuse. If it does blow the fuse you know it is not in the glow plugs themselves but somewhere else.
If unhooking the glow plugs and cranking it keeps the fuse from blowing then you need to pull the glow plugs and check them, or use a circuit breaker and connect them back one at a time testing each one individually.
Let us know what you find out and we can go from there. If you are blowing a fuse, then connect a test light across the shorted circuit, in place of the fuse, and disconnect the circuits sections until you kill the test light, then you have isolated the short.
regards
Mech
|