Help: How to lock and seal hose tails to an engine raw water pump?

[maej]

I've just bought a new Johnson raw water pump (10-35157-3) to replace the old one on my 30 year old Bukh DV20. The new one did not come with any hose tails so I need to remove them off the old pump and somehow lock and seal them on the new pump so they don't leak or come loose with the vibration or force of fitting hoses as well as resisting the engine heat and salt.

What should I use to do that?

And any advise for how to remove them from the old pump without breaking anything?

 

[scottie]

Should just unscrew and screw into new pump

 

[lw395]

Loctite?

 

[KellysEye]

>Loctite?

Yes.

 

[Poignard]

I used Loctite 572 sealant, because I had some bought for another job. PTFE tape would do just as well, and it's very cheap.

 

[oldbilbo]

What should I use to do that?

And any advise for how to remove them from the old pump without breaking anything?

Yes. Loctite.

But do phone their techie support line for guidance on the Right Type.... Google for that number. There are multiple formulations available, and some of them are NOT well suited to your application.

 

[macd]

Liquid PTFE, seals and locks, made for the job.

 

[maej]

Where can I get Loctite 572 from in time for the weekend without getting thoroughly ripped off? Are there any shops near Warwick or Southampton (on Saturday) that sell it?

 

[duncan99210]

Where can I get Loctite 572 from in time for the weekend without getting thoroughly ripped off? Are there any shops near Warwick or Southampton (on Saturday) that sell it?

Try your local motor car bits shop (not Halfords!)

 

[PCUK]

Any old Sikaflex on the threads will do the job.

 

[superheat6k]

Where can I get Loctite 572 from in time for the weekend without getting thoroughly ripped off? Are there any shops near Warwick or Southampton (on Saturday) that sell it?

I would use 577 rather than 572.

Some available free from my boat on the Hamble Saturday morning, but I wil ask in return for a consideration for my Just Giving site for the Mobo Forum Bike ride - PM me if you want to a part used tube.

Alternatively any decent bearing supplier will normally stock 577 but my advice would be do not biy a non loctite equivalent.

 

[maej]

Would Loctite 243 be any good for this? I just found a tube of that in the shed left over from installing an accumulator. Comparing 577 and 243 on the henkel website they are very similar though I get the impression 243 is primarily a thread lock that also seals whereas 577 is a primarily a seal that also locks.

 

[Beamishken]

For your application it will probably be fine it's not like it's particularly critical & pretty much any sealer will do as long as the threads are in reasonable nick & you get the spigots in a reasonable no of threads.
No doubt someone will be along shortly to scream how foolhardy my advice is but I doubt the results will be life threateningly dangerous
If it was me & I had the bottle handy I wouldn't think twice about using it