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| The bores were perfect. You can still see the WPC treated surface smoothness with no damage at all. |
Disassembling the engine we found that the engine had actually sustained very minor damage, surprisingly minor damage most of which we attribute to the anti friction, anti seizing and anti galling properties of WPC treatment. In fact if we just put a new oil pump in place it would probably be possible to continue to run our engine as is.
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| Another bore shows the smoothness. |
Starting at the bottom end, we were very surprised to find that our Calico coated main and rod bearings to be completely undamaged and in nearly perfect condition. The anti friction polymer coating was mostly burnished off the bearings surface but the bearings were fine. One bearing had a small scratch due to a small piece of debris but was still reusable.
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| The pistons were WPC treated in the ring groove area. There is no skuffing. The piston skits were Swain coated with PC-9 coating over the WPC treatment and they are flawless. The pin bores and pins were flawless. |
The WPC treated crank was fine. The milky WPC treated surface was burnished in a few places but the crank was not scored at all. The bearing journals were undamaged despite being run at high rpm sometimes with low oil pressure.
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| Looking at the burnishing on the WPC treated rings, you can see that they are only partially broken in and are not fully seated. We are reusing them. |
The WPC treated cylinder bores were pristine as were the pistons and rings. In fact the rings were not yet fully seated despite being run at race speed for two days with marginal oil supply. The ring grooves, piston pin and pin bores were unblemished.
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| The cam journals on the head were absolutely undamaged. The valves and guides were as well. |
