1982 Mercedes Benz 300sd 4 cyl Two Wheel Drive Automatic 270, 74 miles
Replaced all 5 glow plugs. Because 3 were open. Ran engine approxmately one and one half hrs. Stoped engine, Tried to start engine next day. No go. Checked glow plugs, 3 were open.
Would timer relay be staying in the closed, and if so why are not all the plugs burning out. Checked out all test presented in the Service Manual, Engine 617.95 Turbo Diesel
Thanks very much for your response. I have already installed 5 bosh glow plugs and the new three minute timer relay, sold as a unit.
I think I know what happened. Changed out the old plugs and installed 5 AC delcos. My frist mistake. It was a cold day so I gave it a two or three second shot of starting fluid. My second mistake. The motor started then, but refused any future atempts. Plug's 2, 3. And 4 were very difficult to remove as the glow end had burned and expanded, obviously from the intense heat of the either and current in the plug. The three center plugs must have
received the most starting fluid.
All's well now, she fires right up and purr's like a kitten.
Thank you again for your response
Tuesday, January 20th, 2009 AT 4:54 PM