Posted March 10, 2014 - 03:39 PM
2002 wr426 , something is a wrong, I can turn over the motor without using the decompression lever. what is the chance that it is a stuck valve and if so solutions?
Posted March 10, 2014 - 05:18 PM
It's one of:
Leaky valve seat
Broken decomp << most likely
Posted March 10, 2014 - 05:41 PM
Posted March 10, 2014 - 07:02 PM
At least one of the valves has zeroed out. Meaning no clearance and loss of compression. Time for a head rebuild.
Posted March 10, 2014 - 08:00 PM
Actually, a zeroing valve usually does not mean no compression, just no start.
Posted March 11, 2014 - 01:30 PM
A valve at zero generally does cause a loss of compression. Usually, by the time they get in that condition, they go beyond zero, and you find them off the seat when the engine cools down.