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+--- Thread: Glow Plug relay! (/showthread.php?tid=3927)
Glow Plug relay! - 87Bielenberg - 09-15-2012
Probably a way simple thing, but I need help.
I recently replaced the glow plugs on my OM603, reamed out the holes, etc.
When I went to start it up again, there was no glow plug light and the car would not start. I checked the relay box and the 80 amp strip fuse was burnt in half. I got a new fuse today, put it in, cranked, no light, no start. I thought something might be wrong with the way I put the plugs in, but when I checked the relay again the new fuse was burnt in half too. Why is this happening? It is supposed to be an 80 amp fuse, correct?
I don't understand that much about electricity or wiring.
Also: Should you be able to start the engine with just compression on a hot day? Without glow plugs I mean. I couldn't, is this an indicator of poor compression?
Thanks for your responses!
RE: Glow Plug relay! - aaa - 09-15-2012
It is easy to short the harness against the intake. That will blow the fuse. Make sure you hold the harness still when tightening, otherwise the twisting will bring the wire in contact with the intake.
RE: Glow Plug relay! - 87Bielenberg - 09-15-2012
Well, that seems logical...
RE: Glow Plug relay! - 87Bielenberg - 09-16-2012
Well it was just like you said: One of the wires was bent up and touching the manifold. Corrected it and it works fine now. Good work!
When putting the manifold back on I messed up though. I overtightened one of the screws conecting the manifold with the crossover and broke the aluminum threads. I guess I could tap it and use a bigger screw, eh?
RE: Glow Plug relay! - George3soccer - 09-17-2012
Yea usually happens with the aluminum manifolds and other soft metal products.