Canopy ventilation

[Ranga]

I have an alloy canopy on the 130, that's fairly well sealed - not dust-proof, but pretty good. I'm wondering about options for ventilating the fridge that lives in there.

A fella in Wodonga I met used a holden air filter to do this, but I never got to see how he went about it. Anyway, I was wondering about options, particularly those that would still keep most of the dust and any water out.

Ideas?

[Blknight.aus]

grab an old holden air cleaner assembly, shorten the nose

cut a 100mm square in the roof and in the bottom of the air cleaner assy (just square up the carby protrusion hole)

fit a 100mm 12v powersupply fan to pull air through the filter and push it into the canopy

with 2 long tek screws screw the lid down and put a dollop of silicone over the hole in the center of the lid.

wire up the fan however it suits.

[ramblingboy42]

bloody hell Dave, McGyvers gunnin' for you.............

[Ranga]

bloody hell Dave, McGyvers gunnin' for you.............

Indeed! Amazed there was no paperclips involved in that solution :)

[Blknight.aus]

no but duct tape works surprisingly well to seal the computer fan to the inside of the filter housing and then the filter housing to the roof of the vehicle.

naturally you cut the hole in the canopy by arboring out a pilot hole using the fish hook remover/hoof destoning tool then cutting away with the #2 wood blade (thats the thin one) and the combo hack saw and metal file blade on your delux swiss army knife to do the air filter box.

by crushing up some fresh pine needles and placing them outside the filter you can scent the air being drawn into the compartment and if you weave them into a mat you can attach them to the hole where the trumpet used to be to act as a prefilter.

[zulu Delta 534]

I always work on the principal that to keep dust out the simplest way is to force air in, increasing the internal pressure so that it is greater than the outside pressure, and in so doing eliminate any chance of anything being sucked in. Working on that principal, a forward facing force fed intake vent larger than the exhaust vent will do the trick and also allow a constant air flow, especially if they are not in a direct line. To help keep the incoming air clean in the canopy, consider feeding it from the cab. (The forcing of air in to the cab keeps your cabin air clean and dust free too!)
Just remember that to allow any air in at all, whether through a filter via a fan or not, there must be somewhere for it to go, i.e. there must be also be an exhaust of some description! Flapper valves are great for this and easy to fit.
Regards
Glen