| Archive for The Unofficial Mamod and Other Steam Forum The Original Unofficial Toy Steam Forum Established 2006 The biggest, most popular global steam forum around! Accept NO imitations! We have a growing community of regular posting members who chat about all aspects of toy and model steam. |
| Bugsy |
Timing a Stuart V10My newly arrived Stuart won't run on air, it just wobbles back and forth through about 15-20 degrees.I'm sure the timing is off, the slide valve is exactly at the bottom of it's stroke when the piston is at TDC and vice versa. Do any of the owners out there know how it should be? The eccenter is locked in place with a grub screw so it shouldn't be difficult to reset. Phil |
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| SlideValve |
I think the valve should be 90 degrees off the piston stroke.
Connor |
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| Bugsy |
Thanks, Connor. I'll give it a try. Phil |
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| Lozza1 |
Try this Bugsy
http://www.stuartmodels.com/pdfs/SM-Timing.pdf 
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| johnreid |
If all else fails, read the instructions  Words I live by
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| Bugsy |
Thanks both of you!
I simply moved the eccenter 90 degrees, now it runs as it should. Very smoothly in fact. I'll check the timing properly as per instructions tomorrow. Phil |
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| madeinenglang |
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| Bugsy |
John, I always read instructions. But this time I didn't get any. And too much in a hurry to search on the net. There is always a forum member with the right answer, 24/7 as they say stateside. 
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| johnreid |
I will openly admit that I do not always read the instructions, sometimes I just stupid through things. | ||||
| Michael |
The Stuart link with instructions that Lozza has sent should give you all you need.
However I also have a very small weak air compressor that is very sensitive to timing, tight spots and gremlins in the engines. I use this while setting the timing and when the engine is at its most optimal setting it is visibly noticeable that it is running a little faster. I now check and tune the timing without even taking the valve cover off using this method. Cheers Mick |