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Post by erielimited2960 on Jul 29, 2010 16:24:25 GMT -5
Hey there,
I recently aquired a 9HP gas engine from a snowblower my uncle was throwing out and couldn't pass up the opportunity to use it.
My goal is to make an Erie GP7/9 or F7, except I don't know how to power the trucks from the engine. Anyone know how to do this? Or have suggestions
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Post by fresnojay on Jul 29, 2010 17:50:01 GMT -5
Erie, I am not any authority on this as I am new but I would suggest doing a search for a Hydraulic transmissions as thats how many transfer power from gas motors. I believe one of the most common used makers is Eaton transmissions. Believe they are they Eaton Hydrostatic line. I have seen many different models of them. Hopefully someone can chime in with more specifics. I figured I would give you somewhere to start looking. Hope this helps.
Jason
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Post by pkastagehand on Jul 30, 2010 9:35:18 GMT -5
Typically the output shafts of the Eaton or whatever hydrostatic drive unit go through universal joints and connect to gears in the trucks to drive the axles. Not sure where they get these trucks or whether they make them. Mating bevel gears could work. Worm and worm wheel maybe? Link the axles together with more gears or chain and sprocket.
Just my 2 cents; I haven't built one but have seen a few.
Paul
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Post by Harlock on Jul 31, 2010 0:36:39 GMT -5
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Post by pkastagehand on Aug 19, 2010 8:10:29 GMT -5
I belive most of the gas mechanical / hydraulic tranmission units use a chain and a sprocket to ultimately drive the wheels. Can't tell you anything about the hydraulic transmission either though. I'm just a steam nut  I think I've seen both but the majority I've looked at were telescoping shafts with u-joints at each end going down to the trucks with gear drives to axles. No chains and sprockets. Both work. Chain may be a little sloppier in that movement in the trucks causes misalignment in sprockets, slacking/tightening of chains, etc. Paul |
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Post by gvdobler on Jan 10, 2012 21:20:35 GMT -5
Paul
Do you have a geared loco in mind?
Most I see are chain driven.
I'm new and seeking info as well.
I will buy a kit or RTR though as I have no equipment to build from scratch.
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Post by pkastagehand on Jan 16, 2012 16:42:13 GMT -5
Paul Do you have a geared loco in mind? Most I see are chain driven. I'm new and seeking info as well. I will buy a kit or RTR though as I have no equipment to build from scratch. No, I'm building an A3 in 3/4" scale. I did start an 0-4-0 gas electric switcher concept but was planning on chain drive between wheels and drive motor. Have chassis and wheels and axles done but haven't bought any chain and sprockets, bearings for jackshaft, etc. Paul |
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Post by wingtip on Feb 11, 2012 20:37:24 GMT -5
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Post by Bill Holland on Oct 16, 2012 18:42:48 GMT -5
Interesting project, how about more info on it?
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