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Old 08-24-2014, 07:53 PM
RedArrow RedArrow is offline
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Join Date: Jan 2013
Location: New York
Vehicle: 1986 Volvo 745 TD
Posts: 900
Default NLA Volvo hose 1257446

Quote:
Originally Posted by ngoma View Post
A straight-thru section of tubing with different OD sizes either side (ex. 1/2" OD one side, 3/4" OD other side). Don't drive yourself crazy trying to get exact exact sizes, as the rubber hoses are able to stretch or clamp down quite a bit.
Not yet found the right thing; having removed the failed hose for measuring i figured that heater hose size 1/2 InnerDiameter works at cold start device side, 3/4 hose ID size works right at upper rad hose. Some adapter will be fabricated/found asap.I`ll ask v8 to sell me one of his used ones too.

Quote:
Originally Posted by ngoma View Post
Remember, extra valves, hose connections, clamps, etc. introduce more points for failure.
Very true, I completely agree. No need for extra junk. We dont need complicated things in these ancient machines. Thanks God the Only computer in it is my laptop.

I removed the hose, measured both ends, bought heater hoses 1/2 and 3/4, tried them on, next step is getting some adapter (to connect them at middle) which I couldn`t locate today anywhere, car shops and plumbing supply stores didn`t have the right one. Unbelievable it is. Air out, old hose back, hunt continues.
Hose is hard at the end, also cracked a bit under clamp, rusty, scratched, has a hole that leaks. Nipple at CS device has some missing edge which is not a big deal I think. Both nipples were covered with hard, thick residue that looks like limescale.
ps. I`d prefer a 1-piece adapter, not a soldered copper thing. joke: to avoid the extra weight (uglyness) of the clamps added so car can run faster.
ps.2. i`m thinking if it works to have a 2or3inch copper piece pushed into the smaller diameter hose (1/2), than pushing this whole thing into bigger 3/4 ID hose then put 2 quality clamps on. Basically rubber-on-rubber type of connection with an inside stabilizer copper hose that would not let it collapse when clamps are tightened. IDK. might be a funny looking risky setup, never did it before on any of our diesels. Anybody does/did same thing before?see picts 2 posts above.

Also `bothers me` that the direction of flow there is `fat to thin`. (towards CS device)
Attached Images
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File Type: jpg 20140824_113359[1].jpg (97.7 KB, 12 views)

Last edited by RedArrow; 08-24-2014 at 08:48 PM.
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