Tips/tricks to ease removal of rubber hose from sea water pump

[ralph s3]

Hi All,

I need to remove the inlet hose from the sea water pump on my KAD32 diesels so that I can connect another hose to draw anti-freeze into the raw water cooling system for winterisation. However, I know from last years battle that getting these pipes off is a nightmare as they are rock hard and I have hardly any space to work in. So I'm wondering does anyone have some tricks to ease removal? I thought about using a heat gun to warm the pipe but it's quite near to the belts (although I could remove those). I also wondered if there was some kind of wrench which I could use to grip the hose to move it from side to side while pulling down? I don't want to use hose picks etc as I don't want to damage the hose for obvious reasons. I'm even wondering whether I can rig up a circuit using a spare bilge pump to force the anti-freeze into the top of the outlet pipe within the filter basket but I would have to do that without the engine running and I'm unsure if that risks water finding it's way back up the exhaust into the engine.

Any suggestion gratefully received.

Ralph

 

[BB1]

Warm air gun or hot water

 

[Clash]

If you want something a bit more gentle than a heat gun, a hairdryer might work.

 

[Daydream believer]

Wrap in a towel & keep pouring boiling water on it to expand the pipe.

 

[jon and michie]

When you're ready to put the pipe back on put some vaseline on the inner part of the pipe which catches the brass fitting - Next time will be easier to remove with just a wiggle

 

[Daydream believer]

When you're ready to put the pipe back on put some vaseline on the inner part of the pipe which catches the brass fitting - Next time will be easier to remove with just a wiggle

Vasaline breaks down over time

 

[stelican]

Vasaline breaks down over time

I would also be worried about it slipping off!

 

[Clash]

I would also be worried about it slipping off!

Not an issue if it's clamped. But the vaseline will burn off quickly.

 

[Refueler]

What about those Plumbers Hot clamps ?? Used to expand plastic pipes to slip over and join other pipes ... careful use of ?

 

[Refueler]

Not an issue if it's clamped. But the vaseline will burn off quickly.

All the raw water connections I've had to work on - there were two problems .... hardened pipes and the green mould and crap that forms a strong bond of pipes ....

 

[Clash]

You could also use this tool. Depending on access of course, but seems to work in almost any situation. About 1:30 into the video.

 

[Daydream believer]

What about those Plumbers Hot clamps ?? Used to expand plastic pipes to slip over and join other pipes ... careful use of ?

Where is the OP going to get one of those for a one off?

 

[Refueler]

Where is the OP going to get one of those for a one off?

Over here local Plumbers merchants rent them out by the hour ....

How do you think I had one ? I rented for a day ....

 

[markc]

You could also use this tool. Depending on access of course, but seems to work in almost any situation. About 1:30 into the video.

That's exactly what I use

 

[oldgit]

Warm air gun or hot water

not quite boiling .

 

[Daydream believer]

not quite boiling .

Why not boiling? One wants it to work. Boiling water will not damage anything, whereas a heat gun can easily exceed sensible temps & cause damage.

 

[Clash]

That's exactly what I use

Seems like a very useful tool. Unlikely to damage the hose (if you're careful) and will break whatever bond has formed.

 

[ralph s3]

Thanks all, I'm going on Saturday armed with a small oil wrench with a rubber strap, a hose pick as per the above video, hot water, a hair dryer and a heat gun. If none of that works I will give it a stiff talking to. I will report back as to what is most effective

 

[Clash]

Thanks all, I'm going on Saturday armed with a small oil wrench with a rubber strap, a hose pick as per the above video, hot water, a hair dryer and a heat gun. If none of that works I will give it a stiff talking to. I will report back as to what is most effective

Best of luck. It will probably be a combination of heat and the pick.

 

[Neil1300r]

Every days a schoolday. Got to winteris my new to me S34. Been reading up what to do and was concerned the pipe may not come off easily. I was then going to ask what the tool in the video is called, but just googled it. I won't be doing mine untill the end of the month when the boat gets lifted out of the water. Where there is no shore power so the foredeck crew's hairdryers won't work