I considered buying a nice custom winter jacket like the member here makes for units like my B2650, as I had issues with both low winter engine temps and snowpack in the air intake the first winter.
Didn't spring $ for the nice tractor coat, but tempted.
Did this instead. Requires:
- Tin snips. Scissors.
- A few inches good tape. I use aluminum duct seal tape. Stays put, won't dry out, and removeable.
- A piece of house wrap the size of the rad screen. Tyvek or whatever.
Cut hole in tyvek about 2" x 10" or 12" in size and tape edges at a few places on outside (front) face of rad screen. Gives me a 1 bar jump on temp level indicator.
I dealt with the snow/ice-fog air ingress by tucking the intake inside and below the rad lip.
Winter mode:
Doing that solved the ice clogging issue but I was concerned about restricting the flow so got out the tin snips and made flaps to allow better winter mode flow.
Summer mode:
I used both red and green-handled ("right" and "left" handed) snips to keep the plastic cuts and bends clean.
Cost me 20 minutes of my time. Then 15 minutes every late fall replacing the rad cover after that.
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