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Glow Plug problem on 1979 Mercedes

451 views 2 replies 2 participants last post by  Debbie 
#1 ·
I'm new here and trying to get some help understanding how serious of a problem I have regarding my
1979 Mercedes Benz 300CD Series.

A glow plug went out recently. A friend changed it. Another glow plug went out, so he changed the remaining 4 glow plugs. However, every time we tried to start the car the #5 glow plug nearest the firewall broke off. My friend thinks there is probably something in the cylinder that is flying up and breaking the loop off the glow plug every time we try to start the car. He thinks that fixing it will probably require taking the engine apart. He also suggested the cylinder might need a sleeve, but somebody recently told me that only larger diesel engines have sleeves. Has anyone else here ever had this problem and can you tell me what kind of costs I might be looking at to fix it? Thank you.
 
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