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4 cylinders, 0 compression, help!!

  • Thread starter Thread starter smagnusen
  • Start date Start date
oldschoolorange said:
if the engine has kissed the valves there is a good chance one of them is bent, A real quick way to check for a valve seating if you do not have a vacume pump is to tip the head over so the valves are straight up and them pour varsol onto the valves. The varsol will pool and no leaks will be visible if the valves are seating properly
Click to expand...

Easier way is to check valve clearances. A bent valve will not close all the way thus the clearance will be excessive.
 
With the head upside down on a bench I put pool of carb cleaner in each valve area and the valves seemed to hold it pretty well. Valve clearances were nil but I did change the shims down a size on reassembly. Think there was some clearance but will check them again.
 
Nessism said:
Easier way is to check valve clearances. A bent valve will not close all the way thus the clearance will be excessive.
Click to expand...

Ahh that works if the valve is bent however if it is just not seating properly due to a small amount of carbon buildup it could be difficult to detect looking at clearances.
 
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