I did a search and came up with limited information on this. I have heard of some different ways people have vented a converted open drive banjo rear axle but I need something that doesn't require dis***embly of the banjo and drilling and tapping the axle bells since mine is already in the car. Jeff Norwell mentioned he took out one of the top banjo bolts on the housing and vented from there on the right side I believe, but how?? an actual bolt drilled and tapped for a fitting? Or just a piece of tube stuck in it with silcone??? What about venting out of the top fill hole on the rear axle? Is that too low to get the air out...........Need some advice from those who have done it. Thanks!
If you vent in the banjo area, it will pump out oil. Too much oil flinging around there. It's best to vent outside of the differential bearings in the axle tube.
How do you do that with out dropping metal shavings into the differential housing or without dis***embling the rear axle which is not an option for me since its already installed.
I took out one of the top banjo bolts and drilled out the center. Then i soldered a br*** hose barb into the head of the bolt. A piece of rubber tubing goes on the hosebarb and up and over the rear crossmember. Simple and effective and no drilling into the axle housing.
I am wondering if one of these from Jegs http://www.jegs.com/i/Currie/272/95065/10002/-1 would work the same going into the top fill hole on the banjo or would it be too low on the differential to let air-gases expanding?
There really aren't any good ways to put it in the housing if it is already installed. You could try removing the open drive housing and putting it in there. That might work. I would suggest removing the axle housing and put it where it works the best.
Not what you want to hear but a 1/8" NPT muffler. If in housing as depicted there would be no splash shield to prevent the oil being thrown at vent, the outer tubes as stated would be better.
Here's a Franklin QC with a breather vent provision and a barbed end for hose. You could do something similar and run a breather hose up to the rear cross member as suggested. This is what some manufacturers do. I'm doing similar and adding a marine style vent on the end of the hose to keep all the crud out yet still allow rear axle to breathe.I'm running a loop through floor and then attaching hose to bulkhead vent.
I've gun drilled a bolt and soldered a curly q piece of pipe then a installed a Briggs and Stratton fuel filter to trap the oil , it does work but as hot rod works said it does fling a lot of oil and then slight pressure , so it will push oil not a lot just enough to annoy you with a mess ... The fuel filter as a trap did do the trick though
Yep it must go in the right bell. LHS = big mess. If you drill carefully 90% thru at first the fillings will be minimal load the drill with grease, but then it needs to be tapped." Most " filings will rest at the bottom of the housing. you could try drilling and tapping a housing bolt but you would need to observe any oil escape. The vent tube needs to go up to floor then hang down secured.
I drilled and tapped my rear end when it was in the car. I did this years ago with no ill effects of shavings down the hole. You can see the small chrome bump on the left side tube.
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