Well saved John, a tricky job indeed. An unusual materials couple for a designer to choose, as aluminium is anodic to brass/bronzes and the corrosion you found was inevitable. Suitable application of Doubleboost required!
Thanks again for helping me out with it John. I got a tap to clean the threads, will work out fine. Differential back in the car this weekend, thanks. As someone below said, difficult to find a replacement -- only one company I could find listed it, but had none in stock. Not cheap neither for a scabby piece of aluminium.
To anyone sitting on the fence in regards to supporting John on patreon, Ive been happily supporting him since he started his patreon page. The quality and the amount of content he makes available cant be beaten. Id highly recommend doing it because you really are getting value for money, especially compared to other larger youtubers.
You have done well John , Aluminium is a great material when new , but its a Bastard when something has a good few years on the clock and it starts to break down as a metal .
That was good. Once I did a similar job. It was a position transducer in a hydraulic ram. I was able to set the piece up in the lathe. Then by boring incrementally I whispered the remains of the stuck transducer until just a thin shell remained. I could then unwind the thread. It unwound like an old helicoil does.
Its a bit late now but I've had good success using an acid that attacks brass but does not harm aluminium when trying to remove knackered jets from carburettors. The name of the acid escapes me at the moment but after 30 minutes the jet disappeared and the ali thread was perfect!
Well saved John, a tricky job indeed. An unusual materials couple for a designer to choose, as aluminium is anodic to brass/bronzes and the corrosion you found was inevitable. Suitable application of Doubleboost required!
I use a cape or diamond point chisel to break the drilled out "Dutchman".
79 year old "mechanic that pisses about".
Nasty task but you've saved a scarce if not impossible to find spare part .
Some tidy close up camerawork to John , another great video.
Thanks again for helping me out with it John. I got a tap to clean the threads, will work out fine. Differential back in the car this weekend, thanks. As someone below said, difficult to find a replacement -- only one company I could find listed it, but had none in stock. Not cheap neither for a scabby piece of aluminium.
I think you picked the right man for the job. He calls it pissing about , he's too modest.
For sure! The commentary was funny too. "If it would just split all the way down like a nice brass bush instead of a bastard brass bush" 😂
What thread was it
@@doubleboost 3/4-16
Saved another one!
That thing wasn't giving up the ghost easily at all, nice job!
To anyone sitting on the fence in regards to supporting John on patreon, Ive been happily supporting him since he started his patreon page. The quality and the amount of content he makes available cant be beaten. Id highly recommend doing it because you really are getting value for money, especially compared to other larger youtubers.
That sure was a wobbly end mill! Excellent repair Sir!
You have done well John , Aluminium is a great material when new , but its a Bastard when something has a good few years on the clock and it starts to break down as a metal .
Thanks John
That was good. Once I did a similar job. It was a position transducer in a hydraulic ram. I was able to set the piece up in the lathe. Then by boring incrementally I whispered the remains of the stuck transducer until just a thin shell remained. I could then unwind the thread. It unwound like an old helicoil does.
Had me on the edge of my seat 😮
Good work. What a pain!
May have worked to try heating the brass inside with gas welding tip to near melting to see if it would contract when cooled.
Tash-tastic!
Its a bit late now but I've had good success using an acid that attacks brass but does not harm aluminium when trying to remove knackered jets from carburettors. The name of the acid escapes me at the moment but after 30 minutes the jet disappeared and the ali thread was perfect!
Concentrated nitric acid, according to a thread on chemistry stack exchange.
@@123xqp Is that even available in the UK?
I’ve never had any luck with easy outs. Had better luck with left handed drill bits.
Easyouts are a quick way to make a disaster out of a problem.
a job well dun
What a barsteward that was. 😠