EmmettDave
Member
#3 and 4 are not firing at all, though they have spark.
Compression test results:
(cold, dry, throttle wide open):
#1-105, #2-95, #3-89, #4-100
(cold, with oil in cylinder)
#1-135, #2-115, #3-110, #4, 100 (#3 blows oil mist out sparkplug hole while I test #2)
(engine warm)
#1-110, #2-107, #3-80, #4-100
Granted, looks like rings are worn, but shouldn't #3 and 4 still fire with this amount of compression? Always used to, till recently. Again, they ARE getting spark!
Compression test results:
(cold, dry, throttle wide open):
#1-105, #2-95, #3-89, #4-100
(cold, with oil in cylinder)
#1-135, #2-115, #3-110, #4, 100 (#3 blows oil mist out sparkplug hole while I test #2)
(engine warm)
#1-110, #2-107, #3-80, #4-100
Granted, looks like rings are worn, but shouldn't #3 and 4 still fire with this amount of compression? Always used to, till recently. Again, they ARE getting spark!