From: Marty Galyean (marty@heavyreckoning.com)
Date: Sat May 06 2006 - 14:03:28 PDT
noel shelley wrote:
>Hi fellas ,
> Well all this talk of waste cooking oil !
>Bjorns set up is very impressive and the commercially available kits are no
>doubt fine BUT why go to all that trouble ?
>With Temps this winter down to -5/7 c I had no trouble starting in the
>mornings using 5pints gas , 10 pints kerosene and 30 pints waste oil !
>Heat the oil to about 180*f, filter through a very fine nylon gauze whilst
>still hot and then pour into the 5gal drum already containing the gas/kero.
>give it a good shake , and into the tank !
>As the weather has warmed , I have now gone to 1gal gas to 4gals waste oil ,
>mixed as before .
>Performance and consumption seem the same , the only problem is fuel filters
>, which cost , in this case $3. I keep 2/3 in the vehicle and as she starts
>to struggle it`s a 10 min job to fit a new filter .
>The time and cost of fine filtering don`t stack up and as any particulates
>will be of a soft nature are unlikely to do any harm .
>
>
That sounds like a decent solution based on a real cost analysis.
I'm wondering why not put a dozen of the filters in parallel? Or find a
higher surface area filter?
That would at least make the filter maintenance less frequent (though
the multiple/parallel solution would be take about as much total time,
though you'd be changing N filters per "getting around to it" so maybe
some savings).
>A coolant heated fuel heater was fitted to keep fluid/ flush out any fat
>that may clog the filters . This was made by running 3/8"copper tube down
>the middle of a 8" length of 3/4"copper ,a 3/4"-3/4"-1/2"on the branch T was
>soldered on each end and brass bung drilled to suit 3/8"pipe. The 1/2" flow
>and return can be orientated to suit the coolant pipes on the vehicle ,
>tapped into the heater line it will start to heat before the stat opens .
>For the deluxe conversion fit a gauge to indicate when it`s approaching time
>to change the filter ! For vehicles without a lift pump a vacuum gauge
>reading between the filter housing and injection pump , for vehicles with a
>lift pump a pressure gauge reading between the lift pump and filter !
>
>For best results only oil that is clear should be used , especially in cold
>climates ! Cloudy oil may contain fat and need more regular filter changes
>or be kept for the summer ! Oil that smells foul should not be used at all!
>
>DO NOT EVEN THINK ABOUT THE ABOVE IF YOU HAVE A COMMON RAIL INJECTION SYSTEM
>, you have been warned !!!!
>Any questions ?
>MV content, developed on an exmv landrover !
>
>
>
Do you think centrifugal filtering be of any use?
Marty
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