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Dewshan · 12-26-2020, 07:47 PM

Hello! Working on getting a 1931 Victoria back on the road. Engine was rebuilt but i dont know much about who did it etc. It does start but runs weak and sputters when you try to rev it. Spark is good, timing is good- have done it many times with nurex wrench. Known working carb was swapped over - did not fix problem. After pulling spark plugs i believe 4th cylinder is not firing- it was perfectly clean. What does everyone think the next thing to check would be? Timing gear to make sure it is indexed correctly. Or valve clearances? I have removed valve cover but have not checked anything yet. Third choice would be take the head off to investigate i guess? I only want to do this as a last resort. I have compression on all cylinders.

12-26-2020, 07:47 PM	#1
Dewshan Member Join Date: Feb 2019 Location: Estes park Colorado Posts: 53	Troubleshooting advice Hello! Working on getting a 1931 Victoria back on the road. Engine was rebuilt but i dont know much about who did it etc. It does start but runs weak and sputters when you try to rev it. Spark is good, timing is good- have done it many times with nurex wrench. Known working carb was swapped over - did not fix problem. After pulling spark plugs i believe 4th cylinder is not firing- it was perfectly clean. What does everyone think the next thing to check would be? Timing gear to make sure it is indexed correctly. Or valve clearances? I have removed valve cover but have not checked anything yet. Third choice would be take the head off to investigate i guess? I only want to do this as a last resort. I have compression on all cylinders.