Wallyman
NAXJA Forum User
- Location
- Wichita Falls, TX
Okay after installing my home-made PVC snorkel i realized, as is common knowledge, that 2.5 inch is not sufficient for every day optimal operation.
SOOOO.... i keep the original intake on the front of the airbox open as well as the snorkel.
And i added a little option to cut off the main intake when needed. Mabye it was a flash back to my Marine days in Humvees with thier deep fording switch.
but thats what i did.with minimal modification. All i had to procure was some vacuum line and a Briggs and stratton fuel cut off switch (4.00)
I intercepted the constantly there Cruise control vacuum sice the wire to the control lever for this function had been cut years ago and i have no need for C.C anyway.I junctioned the vacuum line there, ran it into the cabin, ran another line back to the vacuum motor in the airbox that moves the door to allow heated air from the exhaust into the airbox.
Now i must state that i live in an area where it MIGHT get into the 40s or 30s for two or three days a year and therefor have no need for pre-heated air.
I plugged the heated air line.If you were adusive enough to get around the
power steerign lines you could re-route the heated air line to a higher location and perhaps re-use that as well but theres little room to manuver there so i decided to NOT mess with it.
To make it short, you run in "normal operation" with air coming in from both locations, then turn the knob 45 degrees to "fording" and it pulls the door shut, cutting off the forward intake, allowing only air from the snorkel.
This might have some flaws that i will discover "in the field" but so far in "lab testing" its functional.
Only one issue so far,....when i turn it back to "normal use" the vacuum holds. So i need a "t-connected" check halve or a purge button of some type.I will work this out soon.But it has no problem running with snorkel only as far as i can tell at lower, non- highway speeds, so im not too worried.
Heres pics and a diagram.
Perhaps this will be of some use to someone.It cost less than 10.00.
1/4 inch vacuum tubing and the switch. I got all of it at Auto Zone.
SOOOO.... i keep the original intake on the front of the airbox open as well as the snorkel.
And i added a little option to cut off the main intake when needed. Mabye it was a flash back to my Marine days in Humvees with thier deep fording switch.
but thats what i did.with minimal modification. All i had to procure was some vacuum line and a Briggs and stratton fuel cut off switch (4.00)
I intercepted the constantly there Cruise control vacuum sice the wire to the control lever for this function had been cut years ago and i have no need for C.C anyway.I junctioned the vacuum line there, ran it into the cabin, ran another line back to the vacuum motor in the airbox that moves the door to allow heated air from the exhaust into the airbox.
Now i must state that i live in an area where it MIGHT get into the 40s or 30s for two or three days a year and therefor have no need for pre-heated air.
I plugged the heated air line.If you were adusive enough to get around the
power steerign lines you could re-route the heated air line to a higher location and perhaps re-use that as well but theres little room to manuver there so i decided to NOT mess with it.
To make it short, you run in "normal operation" with air coming in from both locations, then turn the knob 45 degrees to "fording" and it pulls the door shut, cutting off the forward intake, allowing only air from the snorkel.
This might have some flaws that i will discover "in the field" but so far in "lab testing" its functional.
Only one issue so far,....when i turn it back to "normal use" the vacuum holds. So i need a "t-connected" check halve or a purge button of some type.I will work this out soon.But it has no problem running with snorkel only as far as i can tell at lower, non- highway speeds, so im not too worried.
Heres pics and a diagram.
Perhaps this will be of some use to someone.It cost less than 10.00.
1/4 inch vacuum tubing and the switch. I got all of it at Auto Zone.