Pin leak in Tinney

[pauls]

Any advice to find small leak and repair 

[noelm]

Get it welded, don’t mess around with glue and patches, that said….chances are, once they clean it up, there will be a dozen other bits.

[Hoods]

Fathers small boat at Bermagui was "making water". Had a look at it the other day. The front carpeted cover over the batteries had worn a hole in the hull. Evident after some time in the shed by the oxydisation on the outside of the Hull. Also small sinkers in the Hull are a cause of  holes in the hull. Suggest you have a good look. And NO GLUE. Do it properly. Good luck.

[Steve0]

When mine developed a hole, it was at a location where it rested on a roller.  That doesn't mean yours will be doing the same, but if you haven't hit something, it seems logical to check around stress points. Also, if you have a sinker loose in the hull, corrosion caused by electrolysis may be a problem if sinker rests on bare aluminium. Usually, sinkers find their way to the back, but it is possible one is trapped on framework.  

If you can't see where water comes in coming in, putting water in the boat when the hull is perfectly dry and looking for escape location/s may help you find it. Don't put a lot in. Find a way to tilt the boat in different directions. For example, are you able to hang it from something using ropes. When you track down the problem, as other indicated, get it welded. 

 

 

[JonD]

We had a little tiny we used and left at the lake edge. We were given it because it had so many leaks the owner was going to take it the tip. I bought some aluminium putty and sanded around the holes and filled, then used the boat for 5 yrs until recently selling it. Never had any issues with the putty which hardened to look just like aluminium. Cost was around $15. 

[frankS]

there are many reasons alloy boats develop pin holes, any foreign material that maintains contact with the alloy.

Many years ago even before I bought T I G welding equipment I repaired lots of alloy boats , some welded some just patched up, depending on the owner's budget  and demands.

One in particular I remember was a mate had a tinnie with pin holes in it , we stripped it bare and under the thwart seats was sinkers, brass swivels and old rusty hooks etc, it was a mess, the boat would have needed a full new skin and my mate had no money to pay for welding, I had M I G at the time.

I got a product called Selleys aqua U need it ( memory slips at exact name ) it's a putty type stick that you get from hardware stores. cut a piece off and kneed it and apply to area that has been sanded clean , best if you wet your hands before sqeezing it into the holes, once the putty dried rock hard I then sprayed the interion of the tinnie with Schults a vehicle under body sound deadener, the stuff that's under the floor mats of cars. 

That was over 20 years ago and the tinnie is still in use now and used every 2nd week end.

Frank

[frankS]

You can buy a water dye that colours the water you put in the boat and any leaks are easily detected , use marker pen to identify hole than repair.

Frank

[jeffb5.8]

On 11/21/2024 at 5:49 PM, pauls said:

Any advice to find small leak and repair 

I pull everything out of my daughters tinny, then put the boat in the water with two adults and looked for the pin hole, marked the two tiny holes with a marker. Was way easier than the dark and a torch looking for holes.

Once dry a light sand, clean and then used kneed it, roll it into a cone shape and push into the tiny holes and spread, underneath the point sticking out i just flattened off. 4yrs and its going strong.

Edited November 24 by jeffb5.8

[rickmarlin62]

Glow bait  or sodium flouroscene  is used for crack testing   its bright green  start filling boat with water  with green dye in it  look underneath for where leak is   simple