Long story, but until there's a brushless DC boost pump I can modify to reduce EMI on, I'm stuck with an AC boost pump.  There's an expensive "solar" rotary vane model with a permanent magnet AC motor option with allegedly lower start up current.  I may have to go that route, though it is low output and the rotary vane pump (Dankoff) doesn't have the best reputation for durability. 

A DC linear piston pump with electronic drive (piston with permanent magnets attached, external coil over non ferrous cylinder) seems obvious for high effeciency off grid boost pumps, but nothing like it is on the market. 

I could adapt a brushless DC motor to a rotary vane or other type pump if I could find a suitable motor.

   I'de like to make a comment here. Years ago,I was doing some investigations into methane as an ae source. I found an article by a guy names "John Fry " from South Africa,a pig farmer who ran what appeared to be a Lister from the rather poor photo on methane,and just enoufh diesel for starting,and top lube. If I remember right,he used a valved line from the storage tank to the engine intake with some seel wool in it for a flame stop I think.
   Sorry ,I don't remember the source,but I think It all started from an article in MEN.

Some might think, hell these guys need some grant money.... but really, farmers are extremely resourceful and don't need no "stinkin" grant money. If a crop can be grown in a way that produces a viable return they can take it from there.

I am guessing but I bet many farms that went under did so because of debt mismanagement. They were chasing markets that were being manipulated by subsidies that didn't come through. Are ther any articles in the "Grass and Grain" about alternative uses for vegetable oils? It's hard to see a way out when there is no money, no jobs and you struggle just to live. Been there. I need to look at those two mags you mentioned.

I had to replace the Idler in my Lister 16-2.  I was able to manage a slight discount, but list price on a Lister Idler gear is $345.29.  The shoulder bolt is $120.00+  What, are we still paying for the Revolutionary War?

It fits nice.  Should be much quieter now.  Still going back together.

Bob

I used to run a forrum on home brewing and a funny thing happened about a year and a half into it....
We ran out of things to talk about. Every now and then a newbie would join the list and ask the same questions again and the same people would say the same things, and things would quite down at Good Homebrewing a slow and withering death realy.
The reason is we focussed on the technical aspects of brew and less on the enjoyment of the hobby. We thumbed our noses at extract brewers and debated pointless things. Now a quick pop over to Hopland a sister site today shows a lot more posts because they drink and chat about beer some brew some buy and some just drink wine....

Setting limits on a forrum is kind of foolish, at some point we'll run out of things to say once we identify the best Indian cam gear and solve the gentle weep of coolant. This is a hobby to some and a way of life to others, what you run is less important than the fact you run something.

Let it be Stationary and IC is all I ask. Lets explore all the options of speed, fuel and aplication. Let's talk about producer gas and cooking oil out of turkey guts. Let's see pictures of homes, kids and cottages. Lets keep the door open for all manner of electrical equipment pumping systems and perhaps even Hvac.

When we close the door off topic we risk loosing good ideas and people who will keep the discussions lively and open.

Doug

  Lately it's been rattlesnakes I've been 'up to my ears in'.  I bend my own pushrods trying to levitate when the buzzing starts.  I'm about 80% deaf and 20% tinnitis and rattlesnake buzzing takes up the WHOLE UNIVERSE!!!
  It's 'jump, shoot, and grab your heart' around here this time of year.