Conditioning old hoses

Status
Not open for further replies.
Joined
Jul 27, 2004
Messages
2,471
Location
Frankfort, Kentucky
So I was at the junkyard, and found a car like mine. I took off the PCV valve hoses because the ones on mine are cracked. I want to know if there is something I can soak these other ones in to let them slide on without cracking too.
 
I don't have the patience to try to get new hoses from the dealership. Do a search for my name and PCV valve and see what it would require for me to get a new PCV valve.
 
Once hoses start cracking, leaking, etc., it's really best to replace them. Consider replacing all of the 'rubber' parts with similar duty. I needed to drain the cooling system about four times in the older Taurus when replacing one part or another; thermostat, then radiator, then upper hose, then lower hose, before replacing every hose as other ones started leaking coolant.

Same with the gas vapor system, which had hoses from the rear of the car to the front, to a charcol cannister, to the engine.
 
Use a silicone spray, grease, or lube. Even dash/tire shiny protectants can be tried.
 
If you have an expensive or hard to find rubber part you can try using it as a form, depending upon pressures that it has to deal with. Just wrap it with a suitable high temp aluminum or rubber tape. You might also be able to sleeve at least parts of it with new hose, bonding it with something like a high temp silicone adhesive or ?
 
Never tried it with a hose, but there was rubber-like seal part we used to soak in brake fluid to soften before assembly. For whatever reason the parts would last longer too, probably because it was seated and installed with better fit.
 
The hose is for a PCV valve line. Replacing with a new one will require a trip to the dealership, alot of paper work, including producing proof of purchase of car, proof of inspection, and an inspection of the car to make sure that the car needs it. Therefore, I am asking how I can make it slide on easier so it doesn't crack going on.
 
If you just want the hose to slide on easier, just spread some silicon grease on the inside of the hose about an inch from the end.
 
Maybe warm it up in boiling water to make it more elastic. Wet heat seems to be more forgiving than dry (oven) heat.
 
Quote:


The hose is for a PCV valve line. Replacing with a new one will require a trip to the dealership, alot of paper work, including producing proof of purchase of car, proof of inspection, and an inspection of the car to make sure that the car needs it. Therefore, I am asking how I can make it slide on easier so it doesn't crack going on.




This seems an awfully complex process to buy a piece of hose. Obviously, you don't have access to bulk hose to just make a new one (albeit not custom molded for that installation).

It would appear cheaper and easier for you to order hose from the USA.

What are they afraid of there? Has some revolutionary group figured a way to turn short rubber hoses into weapons? That would justify the sphincter check to sell you one.

Just tell them that if you were collecting short rubber hoses for such activities, you would keep one cracked hose ..and go around to all the dealerships on the same day so that they won't find the sale registered in the "rubber hose buyers database" that's used to track such suspicious activity. Now sure, they'll look at you like a criminal ..since only criminals figure out the silly stuff that some people do to give you the impression that they're protecting the public. I can see the acute need to track rubber hose procurement in a modern society.

They have to be vigilant. The hose you buy can be used for evil.
 
Quote:


What are they afraid of there? Has some revolutionary group figured a way to turn short rubber hoses into weapons?




LOL!!! . . .
laugh.gif
 
I think they are afraid of the average Japanese person working on their own car. All of the information I have found about this kind of stuff points me to it. One of the hoses I will probably make out of the 3/8" I have, but the one that is actually cracked is about 1.5" long, and is a 3/8" to either 5/16 or 1/4. Enough of a difference that the 3/8 won't stay at all.
 
Last edited:
Soak it in lacquer thinner. The harder the rubber the longer the soak. This will also pull out a lot of black carbon. After soaking in the thinner, dunk in Rislone for a day or so.

I've had very good luck doing this with old rubber gaskets.
 
Soak them in Ru-glyde. You know, the stuff they use to mount tires. Get it at any NAPA dealer for about $10 a gallon. Might want to pick up some hoses while you're there.
smile.gif
 
Another thing the lacquer thinner is good for is swelling gaskets that have silicone sealant on them. The gasket will swell and makes taking the silicone off a lot easier.
 
I'm beginning to wonder if they even have auto parts store in Japan if they don't want the average Japanese citizen working on their own car. I know they have a rigourous inspection program for registering your car over there, so maybe this is true.

So you can't just go into a dealer and buy parts can you? You have to fill out all kinds of paperwork for gaining permission to purchase your own parts, correct?
 
TwoBills, we don't have NAPAs here. They have auto parts stores, but the stores are limited to rice parts, performance parts, wipers, and spark plugs. When I tried to replace my PCV valve every place needed my proof of inspection, proof of ownership, neeeded to inspect it, and then they would give me a PCV valve. The Mazda dealership doesn't even have the hoses. They said I need to go to Suzuki(Suzuki rebadge). I am trying to get some lighting stuff done this week, and I need to put the headrests back on the car so I can finish my inspection sometime this week, but I will see what I can do with lacquer thinner.
 
Status
Not open for further replies.
Back
Top Bottom