Cylinder Honing

Cylinder Honing

Here we show how to hone the cylinder of a lawn mower engine. In the video we demonstrate on a Victa engine, however the principles are the same for any other lawn mower engine.

Tools/Parts:

    • Cylinder Hone – 100m Length, Must Fit Bore 2(1/4) inch or 61.5 mm (Avaliable at Supercheap/Autobarn/Ebay)
    • Electric Drill


Step 1

Disassemble mower down to an empty clean bore.

Step 2

Please note it is important that a cross hatch pattern is left after honing the bore this helps bed in the new rings, this can be achiveved by moving the hone in and out as you go similar to that seen in the video. If honing for a new piston which is the same size as the old one, use some oil in the bore and only quickly hone a little bit at a time, this will make sure you do not wear to much away too quickly.

Step 3

If honing for an oversized piston do not use oil, until you are close to the required size of the new piston. At this point you may use some oil to slow the cutting speed and get an accurate finish.

Step 4

Be mindful that too little honing is much easier to fix then too much.

One Response to “Cylinder Honing”

  1. 61.5 MM not CM

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