79 304 backfires


Asked by Oct 13, 2015 at 11:39 AM about the 1979 Jeep CJ5

Question type: Maintenance & Repair

Engine backfires on the right side only.
It has a new carb and intake manifold (old system had same problems)Engine burns some oil on acceleration and startup
The problem developed after a 60 mile drive
Plugs not fouled.
Could this be mechanical (burned valves), Fuel or electrical? Timing is correct.
Any assistance would help

2 Answers


Have you checked for a flat cam? If the valves are not opening enough that will cause the popping back.


Will do. Thanks

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