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127 cub

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Dave Fl.

09-21-2005 03:45:41

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I am replacing the old single in my 127 with a 4 cyl. opposed engine. Problem is that if I connect the driveshaft to the flywheel end like I should, it rotates backwards from what the original engine did.
Question is, will the pump/hydraulic motor work running backwards? Thanks for any response.
Dave

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Bob

09-21-2005 05:46:23

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Re: 127 cub in reply to Dave Fl., 09-21-2005 03:45:41

No, the hydro will not work running backwards. The "charge pump" will not work, and the unit will die from lack of lubrication, within a minute or two.

On SOME hydros, the body of the charge pump can be turned 1/4 turn, and it will operate in the reverse direction, but I don't think that can be done with yours, although Sundstrand probably did make an alternate charge pump for reverse rotation operation.

If you were to obtain a charge pump for the opposite rotation, the hydro SHOULD work, although operation of the speed-forward/reverse conrol would, I believe, be opposite of original.

I suggest turning the engine around so driveshaft rotation is correct.

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Mike in Ind.

09-21-2005 16:28:16

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Re: 127 cub in reply to Bob, 09-21-2005 05:46:23

Ya know there"s a guy on ebay selling a 147 that he modified an put a wisconson v4 in it. You should check that out.

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