I had all but decided to just drill the inside of the glow plug out cut an old hose and attach it to the end of the glow plug. One more question, just to mke sure before I do some additional work today. I do have to take the crankshaft cover off to take the rocker arms out before I do this test.

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1983 240D Yellow
1989 300E Champigne
1993 190E Gray
1986 325 BMW Burgundy
1987 Chevy S10 Blazer