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

My M90 tank held about 14ml Gil, and I was able to get just over 2 1/2 hours out of it on old stale Coleman fuel with just a few drops of MMO. Mine was hitting somewhere around 50 times a minute with very few double hits, and likewise ran quite cool for the whole time. I'd guess that if I could get mine down to hitting under 30 times a minute, it should be able to clear 3 hours on a tank, no problem.

You certainly have been fine tuning that little pup ...... and I'm still totally amazed at how well built these little engines actually are ... amazing!

Thanks for the info re 14 ml. I suppose I just thought it was full with 10. If it holds 14 ml, I had room for 4 more because I put in exactly 10 with a graduated syringe.