OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Honda Engines HONDA GCV160 Engine blowing smoke.

Hello,
This engine came to me on a Big bob 21� base that was trashed.
HONDA GCV160 GJE-1925845
The engine started and ran fine, but it was blowing smoke, black from memory.
This is the first one of these engines I have ever had, so planned to use it as a learning tool.
Because of the work it had done I pulled the engine apart assuming worn rings.
An afterthought was that it could have been stuck on choke or set too rich.
This was the hardest flywheel for me to remove to date, I couldn�t use my usual steel plates. From the manual it showed 2 cut-outs on the flywheel saying �PULLER�.
So I now finally have a large 2 leg puller. After many days of spraying, tapping & tightening it eventually exploded off the shaft. I didn�t want to use heat as the top seal was right there.
This is the engine and the condition of the piston and bore showing scratches behind the ring grooves.








Here are the new & old ring end gap measurements.
I am considering using a new set of GXV140 rings.
Please see image of the comparison.


The only size that doesn�t fit the service limit window is the GXV140 second ring, its gap is too small (see image of 2nd ring in the bore)

NOTE: I wet the carbon with oil in the image above.

Any opinion as always is much appreciated.
Mark