Hi,
Recently after about 15 minutes of highway driving my Accord (F22A1 engine) makes a loud thumping/knocking sound under load. If I shift into neutral and rev the engine the sound disappears. I took it to the local Honda dealer and was informed it was more than likely a rod bearing. There are about 215,000 miles on this vehicle and I have owned it since new.
Over the past few nights I have dropped the oil pan and bearing cap assenmly to get at the connecting rod bearings. Using platigage all clearance show right about .0015, which I believe is within spec, and only on one bottom bearing do i see just a trace of galling (I have not inspected the upper bearings as of yet).
Can anyone suggest what might be causing the thumping sounds and what my next course of action should be?
Many thanks!
Craig
Recently after about 15 minutes of highway driving my Accord (F22A1 engine) makes a loud thumping/knocking sound under load. If I shift into neutral and rev the engine the sound disappears. I took it to the local Honda dealer and was informed it was more than likely a rod bearing. There are about 215,000 miles on this vehicle and I have owned it since new.
Over the past few nights I have dropped the oil pan and bearing cap assenmly to get at the connecting rod bearings. Using platigage all clearance show right about .0015, which I believe is within spec, and only on one bottom bearing do i see just a trace of galling (I have not inspected the upper bearings as of yet).
Can anyone suggest what might be causing the thumping sounds and what my next course of action should be?
Many thanks!
Craig
