This Mercedes rolled into the workshop blowing blue + white smoke. There was a definite miss fire in the engine. After identifying the troubled cylinder and removing it we found the following.
A new exchange head was fitted and all the valve clearances set and re-checked. But still there was a miss-fire and blue + white smoke.
So off came the head again and after inspecting the piston even closer we found a hole had been punched right through it by the broken valve. Now the friendly customer had to agree to fitting a new piston assembly!
Take a look at the photo's below and see how the valve has punched a hole right through the piston.
Replace one piston assembly , one cylinder head , and there we have a perfectly healthy Mercedes V8.
Who do we blame? Bad fuel? Poor valve guide clearance? Over revving the engine? Maybe just old Murphy!
Enquiries regarding this type of repair are welcome.
Call or text Charlie on 0403 861 597
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