ProVent Install
2005 Jeep Liberty CRD
Total time: 4 hours (not including custom bracket)
| (A) | 3/4" ID hose (6 ft.) | I used Bellowsflex from HBD Thermoid. It's total overkill, but nice stuff. I got it at a marine supply store. |
| (B) | 1/2" ID clear hose (3 ft.) shown w/ 1/2" cap | Home Depot or similar |
| (C) | Hose clamps: 4x 1", 6x 3/4", 2x 1/2" |
Stainless. Easy to get |
| (D) | Adapters: |
For these sizes you are looking for "PP"(polypropylene) fittings used with irrigation hose. Hardware stores and farm supply |
| (E) | Mann-Hummel ProVent 200 | I got mine at Air Now Supply |
| (F) | Custom mounting bracket for ProVent. | Highly recommended. Otherwise you can zip-tie it, but then it will likely rattle around against the brake master cylinder reservoir. |
| (G) | 1 " ID hose (1 ft.) | Bellowsflex from HBD Thermoid. |
Assembled parts including drain pipe. I used clear to be able to see any oil accumulating even though it's not fuel rated.
Close-up of 1" to 3/4" adapter. I had to cut off all but one barb on the 3/4" (left) side to get the tubing on.
I chose the battery side (battery removed) because of available mounting points and more direct, if longer, hose path.
| [1] | Bosch Relay | Free by pulling up plastic fastener |
| [2] | Mounting point I used for bracket | Remove nut |
| [3] | Second mounting point | Didn't want to mess with brake master cylinder, so I just used the exposed stud |
(F) Bracket mounted. Made from scraps I had on hand. Someone with more skill could do better.
[3] Here is a shot of the second mounting point. Not many threads available. I used Loctite.
[1] The Bosch relay relocated to its new home.
(E) ProVent mounted on bracket.
Drain from bottom of ProVent zip-tied in place.
I couldn't find a valve I liked, so I capped it for now.
Battery back in place. I don't think one can tighten down the battery clamp after the hoses are in place.
PCV valve [4] and already disconnected hose [5].
3/4" hose (A) rerouted from PCV valve [4] to ProVent.
3/4" hose (A) from ProVent to original intake hose [5]. As others recommended, I used a 3/4"-3/4" coupler to connect to the old hose (D), because it's much easier than getting the old hose off the intake fitting.
Opening cut in engine cover [6]. Bosch relay relocated [1]. Battery cable [7] snaked under ProVent.