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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 54028
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Replaced the head gasket on my 1990 m 104 SL, wont start and

Customer Question

Replaced the head gasket on my 1990 m 104 SL
JA: Is this your first time dealing with this issue? What size is your engine?
Customer: wont start and show a cold compression test of approx. 90 psi per cylinder.
JA: Are you fixing your SL yourself? What have you tried so far?
Customer: Replaced head gasket but shows low compression
JA: Anything else you want the mechanic to know before I connect you?
Customer: Head was resurfaced befor the gasket was replaced.
Submitted: 1 month ago.
Category: Mercedes
Expert:  Marty replied 1 month ago.

Hi, my name is***** sounds like the cam timing is in correct. Are you sure you timed it correctly when you installed the head?