My new WD lpg

Michael Crowe wrote: Randy, I am just guessing here.  I had always assumed that a WD could be had new as an lpg dual fuel but only with the gas high altitude piston (6.6:1 ratio) offered for the WD, as they did not list the lpg piston until the 45 came out.  My assumption continued that field performance must have been lacking with the WD configuration, thus AC changed the 45 dual fuel to the higher yet lpg pistion (7.25:1ratio).  I gleaned all that from the parts book data on the various pistons, etc.  But like I said in my previous post, with the sales literature I have and the piece Don quoted from, it woudl suggest that the WD lpg setup came out only after the WD45 came out, and that AC made a separate kit with a different carb for the WD.  But then that would conflict wtih Orangeblood's belief that their WD's came with the dual fuel already on them.  So all I can be sure of at this point is that AC did make the conversion for WD's to have the dual fuel configuration, just not sure if they ever came from the factory that way or if it was a dealer conversion.

 

Edited by Rfdeere - 11 Dec 2011 at 1:05pm

I have a piece of literature from Allis that states the whole system as being installed at the factory. But when I check it out in my Dealer price book, it states that you can buy the whole system for field installation, which also required tearing down the engine and installing the high compression engine kit for the LPG. Which also explains the GH desination on the engine serial number. I wonder if the Dealers added that ID to them when they retrofitted them? My dealer parts book lists 282901 motor kit for a 7.2:1 ratio for lpg. The most interesting thing that I have found while working on three different LPG 45's is that they always have D series power crater pistons in them. Apparently how they made the compression gain in them. Any thoughts here?

Rich, I replied to your PM, but just for everyone's viewing, the WD's engine serial number was WDxxxxxx followed by the appropriate suffix, GA for gas, KA for kerosene, PA, I always assumed to be propane, and that is why I always thought the WD lpg could be ordered that way.  If they were dealer conversions, there would be no way to change the GA or KA to the PA suffix, and you would be able to plainly see the restamping.  The WD45 engine serial numbers are 45xxxxx followed by the suffix, G for gas, GH for the propane dual fuel model, K for Kerosene. If all the WD propane's were dealer conversion, then there was no need for the PA suffix, but yet that is what this tractor has. I always assumed PA was for propane, but perhaps that is misplaced.