Glow Plug relay!
Glow Plug relay!
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!
'87 300TDT Silver 150K
87Bielenberg
09-15-2012, 08:13 PM #1Probably 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!
'87 300TDT Silver 150K
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?
'87 300TDT Silver 150K
87Bielenberg
09-16-2012, 11:44 PM #4Well 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?
'87 300TDT Silver 150K
Mb 1984 w201 om603 swap.
Mb 1986 w201 190E 2.3-16v
Mb 2004 w203 C230k
George3soccer
09-17-2012, 07:26 AM #5Yea usually happens with the aluminum manifolds and other soft metal products.
Mb 1984 w201 om603 swap.
Mb 1986 w201 190E 2.3-16v
Mb 2004 w203 C230k
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