2009 TE250 with Athena 300 kit - Questions

Owen Snell

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Has anyone got any experience with these kits fitted to a 250 Husky engine? I'm re-assembling my engine after taking the head off to sort cam bearings and a burnt valve. The workshop manual states to check the piston deck height, but the height on the Athena kit fitted is nowhere near the OEM specs. Downloaded Athena instructions are no help.
 
Do you have different thickness base gaskets to get it close to spec.?
 
Do you have different thickness base gaskets to get it close to spec.?

Yes, but possibly not enough, plus I'm not sure if the Athena kit is deigned like that to give the correct compression ratio with the bigger bore.

The head is getting a light skim, so I've asked him to measure the combustion chamber volume and will work back from there to get the correct deck height to give the right compression ratio, then hope that with the base and head gaskets available I can get it in spec.
 


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