Cast cylinder head repair (silicone bronze)

[doubleboost]

I did not want to weld this but he insisted
It should clean up well

 

[roofman]

If that's all the same water jacket then why weld

 

[doubleboost]

If that's all the same water jacket then why weld

There was one going in to the cylinder
Top right on last image

 

[roofman]

There was one going in to the cylinder
Top right on last image

Yea just spotted it

 

[500e]

How much do you think you will have to face head to reduce corrosion around gasket seal on cylinders

 

[doubleboost]

How much do you think you will have to face head to reduce corrosion around gasket seal on cylinders

Possibly 25 thou may be 40 it runs very low CR so should not be a problem
I will just take off as little as possible

 

[500e]

Old side valve Ford ?

 

[doubleboost]

Old side valve Ford ?

Austin I believe

 

[Parm]

I did not want to weld this but he insisted
It should clean up well
View attachment 150274 View attachment 150275 View attachment 150276

It’s brilliant what you metal magicians can do.

Years ago I did some consultancy for Wolverton Rail works, it’s an impressive place that reconditions and maintains rolling stock

https://en.m.wikipedia.org/wiki/Wolverton_railway_works

I watched this old boy repair a casting, can’t remember what it was. It was cracked. He cut out the crack, cut a matching bit of old but new cast iron to fit, drilled some holes then hammered in some wedges. There may have been some other steps but I can’t remember. Ground it all down and it looked brand new. No heat, no welding involved at all.

Sadly the railway works, which are still there will be flattened soon to make way for housing. They have some fascinating old school machinery in there

https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-45010777

 

[doubleboost]

It’s brilliant what you metal magicians can do.

Years ago I did some consultancy for Wolverton Rail works, it’s an impressive place that reconditions and maintains rolling stock

https://en.m.wikipedia.org/wiki/Wolverton_railway_works

I watched this old boy repair a casting, can’t remember what it was. It was cracked. He cut out the crack, cut a matching bit of old but new cast iron to fit, drilled some holes then hammered in some wedges. There may have been some other steps but I can’t remember. Ground it all down and it looked brand new. No heat, no welding involved at all.

Sadly the railway works, which are still there will be flattened soon to make way for housing. They have some fascinating old school machinery in there

https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-45010777

Metal stitching is still used on cast repairs.
The crack is drilled and tapped a stud screwed in then this is partially drilled and tapped
This is continued until the crack has been replaced with new metal

 

[WorkshopChris]

It’s brilliant what you metal magicians can do.

Years ago I did some consultancy for Wolverton Rail works, it’s an impressive place that reconditions and maintains rolling stock

https://en.m.wikipedia.org/wiki/Wolverton_railway_works

I watched this old boy repair a casting, can’t remember what it was. It was cracked. He cut out the crack, cut a matching bit of old but new cast iron to fit, drilled some holes then hammered in some wedges. There may have been some other steps but I can’t remember. Ground it all down and it looked brand new. No heat, no welding involved at all.

Sadly the railway works, which are still there will be flattened soon to make way for housing. They have some fascinating old school machinery in there

https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-45010777

https://www.metalockengineering.com/en/

Very intresting to see them at work.

 

[Parm]

Metal stitching is still used on cast repairs.
The crack is drilled and tapped a stud screwed in then this is partially drilled and tapped
This is continued until the crack has been replaced with new metal

I bet there aren’t many people wit the skills to do that

 

[Parm]

https://www.metalockengineering.com/en/

Very intresting to see them at work.

What a interesting website

 

[WorkshopChris]

What a interesting website

I used to know a guy in Gravesend who was involved as a tech consultant with them when they were Granges Metalock, what he didn't know about repairing on-site large expensive lumps of cast and similar wasn't worth knowing.

 

[Parm]

I used to know a guy in Gravesend who was involved as a tech consultant with them when they were Granges Metalock, what he didn't know about repairing on-site large expensive lumps of cast and similar wasn't worth knowing.

I find all this old this old school engineering fascinating. No digital displays, computers and stuff.

Just good old fashioned training, experience and a can do attitude

 

[zeppelin builder]

thats a nice shape for a sidevalve combustion chamber plenty squish on the far away parts 'so all the dead gas is pushed out ' helps prevent it pinking and high over the edge of the bore to let it breath
this is a Ricardo patent and it makes a big difference to the early style heads
when norton raced sidevalves at brooklands
they discovered this by accident as the pattern had warped and gave a better shaped chamber
they had new patterns made and the engines did not run so good ' so used the old ones for the BRS models

 

[chris pruteanu]

I would have welded yhat with clean coper rod... Silicone bronze i believe it to last too... Time will tell!

 

[Carl Wilson]

Did you do that on AC?

 

[doubleboost]

Did you do that on AC?

Yes AC 80 Hertz 10 % balance at 60 amps

 

[anto44]

Really nice work will there be a video on this repair?