Originally Posted By: E150GT
Originally Posted By: Ducked
I made one for nothing, which is my more normal price.
Interesting. Do you have any pictures ?
https://www.bobistheoilguy.com/forums/ub...ric#Post4620273
Note, however, that I didn't exactly say it worked, though I THINK it did. I had to take it off before the last inspection, but I might fiddle with it some more when I get back to Taiwan.
The idea was that, since they quote filter restriction in inches of water, you could measure it directly in inches of water, with a water manometer.
The snags with that are (a) its a real time measurement and doesn't
record the maximum restriction reached, and (b) its tricky to route the piping to a position where you can observe it while driving.
If, however, you arrange the manometer to suck water into the air intake, it'll stop sucking when the lift required equals the max vacuum in the air cleaner, so the headspace in the water bottle equals the max restriction.
In the process it'll also do some decoking.
I THINK.