Recommendations for removal of water hose

[moonshine]

Hi,

I have to remove a sea water hose from the stub of the water pump on a Yanmar 4JH36-TBE. I cannot warm easily the engine as the impeller is out of the pump. The hose has been in place for 3 years, is as stiff as a board and is difficult to access. Apart from removing the hose clamps, and levering with a large screw driver, does anyone have any additional tricks to release the hose ?

Help please,

Moonshine

 

[SAMYL]

If it is one of those plastic ones with coiling in it heat it with a hot air gun or gently with a small blowtorch but be careful not to burn it or anything nearby.
Cut it with a hacksaw if you are prepared to sacrifice it.

 

[Skysail]

You might try a hot air gun on it, and if all else fails a hacksaw or padsaw across it.

 

[micknor]

I agree with others heat or hacksaw its the only way. Try heat first with an portable hairdryer if you have 240v access.
Good luck with the task. If the hose is really stiff its best to replace it anyway.
Micknor

 

[philip_stevens]

You can either replace the impeller (if you intend to fit a new one) or block up the hose inlet/outlet hole in the pump housing, and pour boiling hot water into the hose to warm up the housing spigot and hose. It should warm it enough for you to wiggle the hose off.

As others have said, try cutting the hose from the spigot, but as you say it is not easy to get to, try the hot water.

 

[fergie_mac66]

towel

Old terry type towel soaked in bucket boiling water close by pipe and thick gloves wrap round quick !! dont get burned as cools take of second towel keep water boiling dribble boilin water on to top up .Sometimes works !!

best of luck

 

[lydiamight]

If the hose has gone hard then it might be prudent to replace it with a new one.
Easiest way to get the old one off (if you are not going to use it again) would be to cut a slot in the section of the hose on the spigot with a very sharp craft knife and lever off the remains with a large srewdriver.

 

[pheran]

If its essential to preserve the hose, can you get a small set of stilsons (or similar) round it? I have often found a twisting movement, even a very small amount, works when screwdriver levering has failed.

 

[prv]

I've heard it suggested that doing up the jubilee clip around the hose just *after* it leaves the spigot will flex it in a way that breaks the seal, but I've never really tried it myself.

I suspect the only way will be cutting it with a knife, or with a fine junior hacksaw *very* carefully to avoid scoring the spigot. I've removed a number of hoses like that from KS lately - no way they were coming off in one piece.

Pete

 

[oldfatgit]

I find that just about anywhere boiling water either poored direct, directed with a bit of spare hose and a funnel or soaking a cloth works fine with the latter needing gloves to put it on. The run off cools and runs into the bilge with no ill effects. A good soaking followed by a good hard tug always seems to work. Dipping the end in boiling water when replacing onto the stub can save on effort and time. Beware of knifes and hacksaws as scratches on the stub can become the reason for future leaks.