Possible to lose timing chain without compression?
01-18-2008, 08:11 AM
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Possible to lose timing chain without compression?
1991 560SEL
120K
Not ever had any major mechanical problem with engine before.
In early stages of verifying timing chain mishap... can one have a timing chain slip notch or break guide and not lose compression in cylinders? While symptoms allude to timing chain slipping, I am unsure of how much to check compression vs. damaging valve stems in process...is there another way to pull valve covers and check clearances or other help that I am not thinking of?
Car just quit without warning. Verifies that car sparks, has gas to cylinders when pulled plugs, appears TDC matches #1 with rotor position. Hear no clatter or noise in engine. What is next step? Thanks for any help. chris
120K
Not ever had any major mechanical problem with engine before.
In early stages of verifying timing chain mishap... can one have a timing chain slip notch or break guide and not lose compression in cylinders? While symptoms allude to timing chain slipping, I am unsure of how much to check compression vs. damaging valve stems in process...is there another way to pull valve covers and check clearances or other help that I am not thinking of?
Car just quit without warning. Verifies that car sparks, has gas to cylinders when pulled plugs, appears TDC matches #1 with rotor position. Hear no clatter or noise in engine. What is next step? Thanks for any help. chris
01-20-2008, 02:50 PM
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Quite a few:)
Chances are about 1-1000000 that you got by w/o bending valves.
Pull the valve covers, the bent valves will have loose rockers as the cam turns to full valve closed.
Plan on removing the heads, or paying about 3-5K to have the work done.
Jonathan
Pull the valve covers, the bent valves will have loose rockers as the cam turns to full valve closed.
Plan on removing the heads, or paying about 3-5K to have the work done.
Jonathan
