Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thanks guys, this is a really nice little runner and truly screams along!

Enlarging the hole Daniel can be problematic as it can cause a secondary flame igniting and venting out, this burner is the smallest (by far) of Jin's
Honeybee line of Stirling's and its literally no larger than the tip of your little finger.

Yep, I know all that, as I've got one too.

 The hole at the size it arrives can give a venting flame as well and I only have to enlarge the hole to the next size to get my syringe to fit. Kind of wish that the vent hole was actually very close to the wick hole so that when it does vent and flame, it would be right under the heat cap anyway. The vent hole as it arrives here is about 0.018 - 0.019 and my little syringe needle needs a 0.020 hole which is about a #76 drill.

Yes, it does occasionally flame out the vent hole, but does no harm doing so, and it actually occasionally did so before I drilled it as well.