Disposable propane bottle brake vacuum reservoir

[stovie]

I just had the idea to use a disposable propane bottle as a tank for my vacuum assist braking!! I just recently started doing eoc with my s10 and only have about 2-3 times that I have vacuum assist when braking with about 12" of 1/2 inch hose. I found a disposable tank to 1/4 fitting for around $11+$5.99s&h that I'm going to t off for my vacuum assist at which time it should provide me with about 1/2 a gallon vacuum tank for hopefully a lot more braking!!! 😋😋

[Stubby79]

Neat idea. Thinking outside the box.

Not sure it couldn't be done for less than $17 though, either with a more affordable adapter or just using sewer pipe and fittings.

[stovie]

Originally Posted by Stubby79

Neat idea. Thinking outside the box.

Not sure it couldn't be done for less than $17 though, either with a more affordable adapter or just using sewer pipe and fittings.

If you don't have most the fittings and pipe, then no!!��(Well if your going for the same capacity as the tank that is!!!)

Edit: I could of got one for $10 off eBay with free shipping, but I was having trouble with their site and said screw it!! Also, I just realized that I could of did it differently and only cost me about $5 dollars, but then the bottle couldn't be used for anything else afterwards and I'd like to keep it intacked for now!!

[puddleglum]

Hope it works out for you. How big is the bottle? if it's one of the standard 14 oz bottles, it may only give you 1 extra brake applications. Just did a similar mod on my Echo using a 4 lb fire extinguisher bottle. It's about 2.5 times the size of a small propane bottle and it gives about 3 extra applications. You are probably going to need an additional check valve as well unless you plan to relocate the one in the brake booster. I went with the extra valve. I didn't want to risk losing brake vacuum altogether if something went wrong with my mod.

[stovie]

I have very little room under the hood of my s10 pickup, and the tank fits perfectly in the only open spot I seem to have!! (It's a 16.4oz'r by the way) what I'm also wanting to do is to add a progressive vacuum regular that only supplies the brakes with the minimum amount of vacuum needed from the canister, but gets full vacuum to the brakes when cars on through a check valves bypass. I'm thinking that if the brake only needs say 2hg of vacuum to work and the car gives 11hg of vacuum(not sure if 11hg is accurate right now due to looking into full vacuum and car vacuum!! ����) than you could get another 4-5 presses when you'd normally get just the one!!

[TimV]

2 a 3 times :O. Then i aim verry lucky. I can break 15 times for 3 a 4 seconds.

[elhigh]

It doesn't have to be any kind of high grade sewer pipe, 2" PVC is strong enough to hold a hard vacuum. A 30" length of 2" PVC is equivalent volume to that 16.4 oz. canister and rigging fittings to hook up to it should be child's play. There's plenty of room under the bed of your truck to array as many pipes like that as you want.

Barring that, for a few bucks and a quick trip to Pull-a-Part, you could have as many vacuum reservoirs as you wanted and array those on a rack under your truck. No problemo.

But dude: exclamation points. Chill. Or as you say, chill!! You're killing me over here.

[stovie]

Originally Posted by elhigh

It doesn't have to be any kind of high grade sewer pipe, 2" PVC is strong enough to hold a hard vacuum. A 30" length of 2" PVC is equivalent volume to that 16.4 oz. canister and rigging fittings to hook up to it should be child's play. There's plenty of room under the bed of your truck to array as many pipes like that as you want.

Barring that, for a few bucks and a quick trip to Pull-a-Part, you could have as many vacuum reservoirs as you wanted and array those on a rack under your truck. No problemo.

But dude: exclamation points. Chill. Or as you say, chill!! You're killing me over here.

Hahaha sorry! I've been talking politics with people on Facebook for a while so now I tend to use those too much.

I have something planned for the bottom of the truck, so there's no room tell I figure out what or how I'm doing it.

Also the fitting for the bottle will also be used to fill other bottles when I need to, so it's duel purpose.

[oldtamiyaphile]

What determines the number of applications you have.

Most of my factory cars have six brake applications stock and their boosters aren't especially large, so I'm thinking there are other factors at work.

Ideally, I'd just delete all my boosters. My 49 Ford doesn't need one

[elhigh]

Back in the day the engineers had to fight Ford (talking about Henry himself) on hydraulically actuated brakes. Henry was a rods-and-levers man, he didn't care for the hydraulic systems at all. I bet if any of them had suggested vacuum brake boosters to Henry, he'd've had them dragged out of the factory by their heels.