Hello All,
I am new to this forum. I am an active 71 years of age and enjoying retirement with my wife on our 5 acre rural-residential block.
I have a Briggs and Stratton Model 445877 26 HP vee-twin engine (type 0135B1) (code 080110YG, powering a Greenfield rideon mower.
I hope that someone can help me with a problem which recently arose.
Engine began missing on one cylinder - hot and cold. Engine has done only 102 hours and is regularly serviced. I initially suspected a plug, but both plugs seem OK and swapping them between cylinders makes no difference - left hand cylinder still misses. (At 52 hours, this engine sufferred a catastrophic governor failure requiring a new short block by local dealer under warranty.)
A rough compression test, (finger over plug hole while cranking), shows LH cylinder pressure is much lower than RH.
When engine is running exhaust gas pressure of RH cylinder is much higher than LH one.
I am wondering - blown head gasket/scored bore/bad valve/bad valve seat/no valve lash/broken compression ring/s/- are there simple steps I can take to identify the problem source?
Any and all help will be appreciated.
Thanks in advance
mustang
