Bowman heat exchanger tube stack repair-help required please

[ms1]

Bowman copper/brass heat exchanger has pin hole leak and repair is needed. Leak is inside the stack and not accessible.
Stack is completely removed from heat exchanger outer casting (about 30 inches long with 50+tubes). Leak looks like it is where one individual tube passes through the end plate & its location can be identified under pressure.
Where can this be repaired please ?
Appreciate your help.

 

[volvopaul]

You have 2 choices, either identify the tube and blank it off with solder either end, or remove the tube and fit a new one, my local radiator place does this for me very sucessfully but were in notts so probably a long way from you.

 

[omega2]

Do as advised by Paul, squeeze the offending tube along it's lenght, and block the ends up, or take it to a Radiator repair man. Failing that a new one can be got from Bowman, they are in Birmingham, they have a web site google them, they sold me components.

 

[Andrew_Fanner]

Radiator repair specialists should be able to do that for you, failing that, find your local model engineering club (usually iwth a miniature railway attached) and offer beer or beer vouchers. It is fundamentally the same as fixing a leaky boiler tube but without the need to withstand such heat and/or pressure.