 |
|
| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to uk.d-i-y
|
|||
|
|||
Stitch welding (repair of cast iron)
A good example of a stitch welding repair on a Car SOS programme
yesterday, repairing an axial crack in a cast iron cylinder head of an Austin 12. What wasn't clear from what they showed is how they achieve a perfect seal: the crack was cut out and replaced with a hand-fettled insert, before stitch welding across it, but it wasn't obvious if any sealant was put in during assembly or applied afterwards. You did see them finishing off by peening but surely that is not enough? |
|
#2
Posted to uk.d-i-y
|
|||
|
|||
|
Stitch welding (repair of cast iron)
newshound wrote:
A good example of a stitch welding repair on a Car SOS programme yesterday, repairing an axial crack in a cast iron cylinder head When I've seen it (only on TV, not in person) they screw-in and then snap off special threaded inserts into the gap between the original and new metal, or just direct into the crack. this might not be the best video, but it's what turned-up ... https://www.youtube.com/watch?v=Pq0wfU4ZaKk |
|
#3
Posted to uk.d-i-y
|
|||
|
|||
|
Stitch welding (repair of cast iron)
On 22/06/2015 21:59, Andy Burns wrote:
newshound wrote: A good example of a stitch welding repair on a Car SOS programme yesterday, repairing an axial crack in a cast iron cylinder head When I've seen it (only on TV, not in person) they screw-in and then snap off special threaded inserts into the gap between the original and new metal, or just direct into the crack. this might not be the best video, but it's what turned-up ... https://www.youtube.com/watch?v=Pq0wfU4ZaKk Interesting, thanks. I see they are using a thread sealant on each "pin" so I guess that is the secret, as well as finishing off by peening. |
|
#4
Posted to uk.d-i-y
|
|||
|
|||
|
Stitch welding (repair of cast iron)
On 23/06/2015 19:48, newshound wrote:
On 22/06/2015 21:59, Andy Burns wrote: newshound wrote: A good example of a stitch welding repair on a Car SOS programme yesterday, repairing an axial crack in a cast iron cylinder head When I've seen it (only on TV, not in person) they screw-in and then snap off special threaded inserts into the gap between the original and new metal, or just direct into the crack. this might not be the best video, but it's what turned-up ... https://www.youtube.com/watch?v=Pq0wfU4ZaKk Interesting, thanks. I see they are using a thread sealant on each "pin" so I guess that is the secret, as well as finishing off by peening. Yes, as an ex engineer, retired now, it was very interesting to see how they did that repair. In my days, it was more usual to repair the crack by welding with cast rods, after grinding out the crack. |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Welding cast iron | UK diy | |||
| Brazing or welding cast iron | Metalworking | |||
| Brazing or welding cast iron | Metalworking | |||
| welding cast iron to stainless steel | UK diy | |||
| Wrought Iron, Cast Alum and Cast Iron Decorative welding | Metalworking | |||
Linear Mode
