old rat 49 Posted February 8, 2012 Report Posted February 8, 2012 Want to make vacuum canister for wipers. Is a 2 quart can big enough to help ? Quote
Don Coatney Posted February 8, 2012 Report Posted February 8, 2012 I would think a half gallon should work as long as the can is designed for vacuum and does not collapse. What will you use for a check valve and how will you plumb it in? Quote
1941Rick Posted February 8, 2012 Report Posted February 8, 2012 Good one Don..... That is like using a 8/16 wrench instead of a 1/2" Quote
BobT-47P15 Posted February 8, 2012 Report Posted February 8, 2012 Don--what did your cannister come from--a 70s Ford? Quote
old rat 49 Posted February 8, 2012 Author Report Posted February 8, 2012 Valve from a power brake booster to manifold and a fitting to wipers. I think a grapefruit can should hold the minimal pressure. Cheap experiment anyway. Quote
Don Coatney Posted February 8, 2012 Report Posted February 8, 2012 Don--what did your cannister come from--a 70s Ford? My resovoir came from eBay. Quote
carmen142 Posted February 8, 2012 Report Posted February 8, 2012 Wow I never saw that I sure hope someone can post some pictures of this set up. Carmen Quote
carmen142 Posted February 9, 2012 Report Posted February 9, 2012 Thanks Don I never saw anything like that bet it helps when it rains. The line are connect to ?? I had my vacuum pump rebuilt and while it does work OK I bet with this as a back up it works GREAT. Once my engine is rebuilt it should work better. Quote
msawdey44 Posted February 9, 2012 Report Posted February 9, 2012 These canisters are a fairly standard hotrod item--storing some vacuum for the power brakes when running wild cams that don't draw all that well. Thus, you can find the canisters at the usual rodder hangouts: JEGS, Summit Racing, and so forth. I put one on my '50 Dodge when I went to power disc brakes--not sure it was necessary but it does provide a bit of a sense of security. Quote
wayfarer Posted February 9, 2012 Report Posted February 9, 2012 If memory serves, Ford used alot of vacuum cans in the 50's, maybe into the early 60's. Might look in that direction for examples/parts. . Quote
thrashingcows Posted February 9, 2012 Report Posted February 9, 2012 Look on the full size C-body mopars from the 60's through the 70's. They usually ran a vacuum canister for the Heat/Ac systems. The early ones are tin, but later they switched to plastic. Also check older motor homes...they seem to run a vacuum canister regularly. Quote
TodFitch Posted February 9, 2012 Report Posted February 9, 2012 Look on the full size C-body mopars from the 60's through the 70's. They usually ran a vacuum canister for the Heat/Ac systems. The early ones are tin, but later they switched to plastic.Also check older motor homes...they seem to run a vacuum canister regularly. There was a vacuum canister behind the front bumper on the right side for the heat/AC controls on '91 Jeep Cherokee I once had. You can get vacuum check valves at any auto supply store. You can get PVC pipe and end caps at any home center. Between the two you can make as big a vacuum reservoir as you'd like. Just need a place to hide it on your vehicle. Quote
Lou Earle Posted February 9, 2012 Report Posted February 9, 2012 On a 53 ford I have someone made a cannister out of pvc pipe 1 1/2 inches in diameter and about 3 feet long and attached it to the hood. The drilled a hole for a check valve from a power brake booster inserted it and it leaked. I just put rtv sealant around it and the smaller fitting where the wiper tube is connected. It now works great. I have also read that to big a cannister in not very efficient because the draw needed to create vacuum in the cannister is so large it causes the wipers to go slow- that is what others have said. The 3 ft by 1 1/2 inches seems to work fine Lou Quote
TodFitch Posted February 9, 2012 Report Posted February 9, 2012 ... I have also read that to big a canister in not very efficient because the draw needed to create vacuum in the canister is so large it causes the wipers to go slow- that is what others have said.... Huh? I don't understand that at all. Quote
Plymouthy Adams Posted February 9, 2012 Report Posted February 9, 2012 Unless you just want a cannister made of tin..you can go to about any wrecking yard and grab vacuum resevoirs off a number of cars..they can be hidden away in the area betweenthe fender and cowl..a real trick look rectangular molded reservoir was on the 2004 Dodge Dakota..look for this on the underside of the wiper assembly cover... Quote
Robert Horne Posted February 10, 2012 Report Posted February 10, 2012 Chevy Vans have a cannister attached to the inside of the hood, easy to get to. Quote
40P10touring sedan Posted February 10, 2012 Report Posted February 10, 2012 Found these the other night on ebay- Chrome- http://www.ebay.com/itm/130590748551?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 Not so chrome- http://www.ebay.com/itm/130556564881?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 Hope this helps.... Quote
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