Stuart No 4 valve timing

[Garry ColesParticipant @garrycoles69390]

Hi, I'm building the Stuart No 4 and I'm in the middle of making the two eccentrics for the reversing gear. The two of them are pinned together at 33 degs/66 degs apart. I was wondering how critical is the timing for the running of the engine. I am finding it difficult to get it exactly right. So if it's a degree or to out will it make much difference to the running. When I was machining the eccentrics, I lost the middle line reference. So that's why i'm finding it so difficult.

Can anyone advise me on this please.

Thanks

Garry

[Garry ColesParticipant @garrycoles69390]

[JasonBModerator @jasonb]

Few degrees won't make much difference unless you are chasing power and or economy of steam.

[Garry ColesParticipant @garrycoles69390]

Thanks Jason, that's what I thought.

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