Nismo280zEd Posted March 13, 2009 Share Posted March 13, 2009 Was curious to see if anybody was running these? http://www.parker.com/literature/Hose%20Products%20Division/4281%20B1.pdf I was thinking about converting the Z over, more cost effective and longer life than hose from the local parts place. -Ed Quote Link to comment Share on other sites More sharing options...
Derek Posted March 13, 2009 Share Posted March 13, 2009 Hi Ed I bought some 1/2 push lock fittings and some non parker hose from mcmaster carr for my vacuum log. The hose sucked flatter than a pancake. I read the specs on the parker hose and it say's it will take up to 28" of vacuum so maybe it's more ridgid. The hose is a bit tricky to get on but it seems to seal really well. I heated the ends in hot water and used a little soap. Derek Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted March 13, 2009 Share Posted March 13, 2009 Awesome hose. Been using it for years and never had an issue. I am using 3/8" for the remote auto tranny cooler lines and most of my EFI return line. Estimate I have over 15' of it in my car. Hard to imagine a hose rated for 250psi being sucked flat by 28 inches of vacuum. I just spray a little WD40 on the inside tip of the hose before I push it on. Quote Link to comment Share on other sites More sharing options...
Derek Posted March 13, 2009 Share Posted March 13, 2009 Awesome hose. Been using it for years and never had an issue. I am using 3/8" for the remote auto tranny cooler lines and most of my EFI return line. Estimate I have over 15' of it in my car. Hard to imagine a hose rated for 250psi being sucked flat by 28 inches of vacuum. I just spray a little WD40 on the inside tip of the hose before I push it on. Are you inferring my manifold sucks! I just looked up the hose I bought from mcmaster and it has a working psi of 250. I ended up sliding a piece of 1/2" od nylon tubing inside it to keep it from collapsing. The brand is w.p. flex lock. I can't find any vacuum data on the hose just pressure. Going with the parker brand may be the way to go. Derek Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted March 13, 2009 Share Posted March 13, 2009 I just got some of the blue -10 stuff from ATP turbo to do my power steering return line. Worked great. Just as nice as the aeroquip and earls push lock stuff that I used on my z back in the day. Beats the hell out of trying to assemble braided stuff, let me tell you that. One tip I read online, was to dip the hose end in hot water to soften it before you try to slide the fitting in. Evan Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted March 13, 2009 Author Share Posted March 13, 2009 Sounds like you guys like the product, I'll start looking into a local distributor for myself. -Ed Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted March 13, 2009 Share Posted March 13, 2009 Ed, you could always just get earls or aeroquip line from summit in push loc as well. Evan Quote Link to comment Share on other sites More sharing options...
Mayolives Posted March 13, 2009 Share Posted March 13, 2009 Fast service and fair pricing. http://www.anplumbing.com/ Quote Link to comment Share on other sites More sharing options...
eec564 Posted March 13, 2009 Share Posted March 13, 2009 Hot water with a rubber hose works great for softening it up and letting it stretch over a fitting. Sometimes it just isn't enough though. If you have a really tough one try using a tea kettle that whistles. Get the water in it boiling and hold the end of the hose in the stream of steam. That'll get it really hot without burning or melting the hose. Works great on nylon hose that's easy to crack/split. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 13, 2009 Share Posted March 13, 2009 Don't just push the hose on the fitting. Add a clamp. I always use an XRP Push-On clamp and sometimes use their flat wound internal spring to prevent collapsing. http://www.xrp.com/XRPCatalog.pdf Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted March 14, 2009 Author Share Posted March 14, 2009 If parker says it's good enough for 250psi without a clamp, it's good enough for me. They've been doing fitting for a long time lol. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 14, 2009 Share Posted March 14, 2009 Parker's recommendations are for industrial applications. A clamp will help reduce the chances of the hose pulling off the fitting in event of an accident or component failure. XRP, Goodrich, etc. all recommend a clamp for push lock hose use in automotive applications Quote Link to comment Share on other sites More sharing options...
wheelman Posted March 14, 2009 Share Posted March 14, 2009 Ed, I've been running those fittings and that hose ever since I got my Z back together. I used them for the fuel system and to plumb an oil cooler, never had a problem. I used the same method Scottie-GNZ used to assemble the hose, squirt a little WD on the fitting and a little inside the hose and it goes together relatively easy. JohnC Thanks for posting the link to that catalog, I'd never heard it was good idea to clamp the push-on style hose ends. Do you think worm gear style clamps would be sufficient? Quote Link to comment Share on other sites More sharing options...
johnc Posted March 14, 2009 Share Posted March 14, 2009 Do you think worm gear style clamps would be sufficient? Yes, just don't clamp them so tight it damages the hose. You should not see the hose squeezing through the slots or bulging up the sides of the clamp. The idea behind the clamps is that if there's sharp tug on the hose there's an extra margin of safety. Quote Link to comment Share on other sites More sharing options...
garvice Posted March 14, 2009 Share Posted March 14, 2009 I have a question here. A hose has a pressure rating, in Derek's case it was 250psi. Now I have always assumed that you could pump 250psi in there without the tube bursting. But when your talking vacuum, you are talking about sucking rather then pushing. So wouldn't the pressure rating be useless if you are trying to find a hose that doesn't collapse under vacuum? Quote Link to comment Share on other sites More sharing options...
Nizm0Zed Posted March 15, 2009 Share Posted March 15, 2009 in simple terms, yes, to some degree. that hose rated to 250psi burst pressure, will also be rated to -250psi burst pressure. obviously that'd never happen, but thats what the material itself is rated to. If the hose structure isnt capable of holding its own shape under compression (not extension, like when pressurised) it'll collapse, and may require an internal reinforcement, like a nylon tube, or spring. Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted March 15, 2009 Share Posted March 15, 2009 russel push lock hose and the parker stuff i used wont collapse under typical automotive use.. its pretty stout! Evan Quote Link to comment Share on other sites More sharing options...
AkumaNoZeta Posted March 15, 2009 Share Posted March 15, 2009 Trust me, if you don't get some cheaply made ones, you don't ned a clamp for them. My teacher passed around a peice from his super-modified to the class and no one was able to get the fitting out, they're on there for good. So if you're gonna use it on something you're gonna take apart, add extra to it because you're gonna have to cut the hose to get it off and you want that extra length of hose so you can slip it back on instead of buying a whole new hose. Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted March 15, 2009 Administrators Share Posted March 15, 2009 Trust me, if you don't get some cheaply made ones, you don't ned a clamp for them. My teacher passed around a peice from his super-modified to the class and no one was able to get the fitting out, they're on there for good. So if you're gonna use it on something you're gonna take apart, add extra to it because you're gonna have to cut the hose to get it off and you want that extra length of hose so you can slip it back on instead of buying a whole new hose. How many of you simulated crashes? If you need to take it apart, you did something wrong. Quote Link to comment Share on other sites More sharing options...
AkumaNoZeta Posted March 15, 2009 Share Posted March 15, 2009 They're not designed to be taken apart Quote Link to comment Share on other sites More sharing options...
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