had a few people over this weekend helping to clean out my parts stash and one of them asked what the coiled hoses were under all my rigs. well, they're my extended breathers.
i don't like the idea of loose hoses hanging down all over underneath just looking to snag something and working with class 8 trucks, i sell these small coiled hoses all day long.
go to a truck stop or big truck dealer (peterbilt, kenworth, etc) and get fifth wheel slider hoses. one for each breather (in most cases, two needed, early fj55s and fj45s had two breathers on the rear axle, so three may be required).
check to make sure the hoses come with 1/4" air to 1/8" npt fittings. you'll also need a 1/8" npt tap, some 1/4" air line (how much depends on where you're going to route everything), 1/4" air line "t", 1/4" air line coupler, 1/8" pipe nipple and 1/8" coupler, a dab of grease, zip ties, and wrenches.
up front is easy since it's a short breather, straight to the axle. remove the old breather, put a dallup of grease on the tap and tap the hole to 1/8". since 1/8" is so close to the size already tapped in your axle, it will go easily. thread in your 1/8npt to 1/4 air fitting and attach a coiled hose.
on the rear, the breather probably goes through the t for the brake lines. remove the old breather (mine let out a woosh of air telling me it was plugged), put grease on the tap and tap the axle again. now, install the 1/8 npt nipple, then the coupler, finally another 1/8 npt to 1/4 air fitting and attached the other coiled hose.
on the other end of the rear coil, install the 1/4 air coupler and the air line, and route the airline to the front of the vehicle, securing it along the way. to help protect the air line, you can add 1/4" loom, but it's not necessary.
when you get up to where the front coiled hose is, install the "t" between them and use another section of air line to route to where you decide to vent everything.
the only thing i didn't add to the shopping list is a breather for the top of the final line. you can pick that you yourself. you can vent it into something else, cover it with a balloon, install a tube style breather end...it's up to you. i use breathers for oiled hubcaps, also from a big truck. just don't leave it open as it becomes a dirt trap and can get plugged, which is one of the things you're trying to avoid.
i don't like the idea of loose hoses hanging down all over underneath just looking to snag something and working with class 8 trucks, i sell these small coiled hoses all day long.
go to a truck stop or big truck dealer (peterbilt, kenworth, etc) and get fifth wheel slider hoses. one for each breather (in most cases, two needed, early fj55s and fj45s had two breathers on the rear axle, so three may be required).
check to make sure the hoses come with 1/4" air to 1/8" npt fittings. you'll also need a 1/8" npt tap, some 1/4" air line (how much depends on where you're going to route everything), 1/4" air line "t", 1/4" air line coupler, 1/8" pipe nipple and 1/8" coupler, a dab of grease, zip ties, and wrenches.
up front is easy since it's a short breather, straight to the axle. remove the old breather, put a dallup of grease on the tap and tap the hole to 1/8". since 1/8" is so close to the size already tapped in your axle, it will go easily. thread in your 1/8npt to 1/4 air fitting and attach a coiled hose.
on the rear, the breather probably goes through the t for the brake lines. remove the old breather (mine let out a woosh of air telling me it was plugged), put grease on the tap and tap the axle again. now, install the 1/8 npt nipple, then the coupler, finally another 1/8 npt to 1/4 air fitting and attached the other coiled hose.
on the other end of the rear coil, install the 1/4 air coupler and the air line, and route the airline to the front of the vehicle, securing it along the way. to help protect the air line, you can add 1/4" loom, but it's not necessary.
when you get up to where the front coiled hose is, install the "t" between them and use another section of air line to route to where you decide to vent everything.
the only thing i didn't add to the shopping list is a breather for the top of the final line. you can pick that you yourself. you can vent it into something else, cover it with a balloon, install a tube style breather end...it's up to you. i use breathers for oiled hubcaps, also from a big truck. just don't leave it open as it becomes a dirt trap and can get plugged, which is one of the things you're trying to avoid.
.......First thought was that all those coils look like more of a snagging point to me .....