Coolant loss- How to fix a pinhole any ideas?

duncand · Post by **duncand** » Sat Mar 17, 2007 3:23 pm

Hi everyone

I'd appreciate some ideas for the following problem.

I noticed I'd lost coolant and set about trying to find what I expected to be a leaking rubber hose somewhere. However, when I found the leak, it was due to a pinhole on a metal protrusion going into the engine that one of the coolant pipes situated above the alternator connects to.

Whilst I ponder how best to fix this I'm wondering if anyone else got some bright ideas. At the moment I'm thinking of something like chemical metal smeared over the pinhole.

Thanks for any input.

Duncan

Post by **francophile1947** » Sat Mar 17, 2007 3:39 pm

Chemical metal may work to block a pinhole, if you can get the surface clean enough to get it to stick.

haydn callow · Post by **haydn callow** » Sat Mar 17, 2007 7:37 pm

I would have thought that if you have a pinhole in a metal pipe then it must be well rotten and you need to do more than just fix this one pinhole. How about (if practicable) finding a slightly bigger bit of tube and sliding it over the damaged one having first smeared everything with plastic metal??

haydn callow · Post by **haydn callow** » Sat Mar 17, 2007 7:38 pm

Or even putting a new rubber tube on and making sure it covers the hole

Peg leg Pete · Post by **Peg leg Pete** » Sat Mar 17, 2007 7:45 pm

You will need to check the quality of your coolant and also make sure that when you replace the coolant you blled the systen correctly. Poor quality coolant will cause the metal pipes to corrode.

David Edwards · Post by **David Edwards** » Sat Mar 17, 2007 9:16 pm

Whatever you do get it done properly, it will be no good if you are belting down the motorway and it blows again only worse would it. Better safe than sorry. Good luck, happy motoring.

keving · Post by **keving** » Sat Mar 17, 2007 9:46 pm

Hi All,

Had the same thing happen with my Pajero.
Removed pipe from engine block and removed the rotten area which produced a split from the pin hole.
Then i braised the open split and files back to shape.

Cheers
Kev

Post by **Simon Jones** » Sat Mar 17, 2007 11:22 pm

Not sure if its the same part, but BongoBits do seem to stock most of the hoses & pipes. May be a wise investment to replace it

http://www.bongobits.com/Main.asp?PageN ... roduct=169

3leggeddog · Post by **3leggeddog** » Wed Mar 21, 2007 3:56 pm

piece of rubber and ajubilee clip