I broke it!!!

[bluecraig0776]

I noticed oil leaking from rocker cover on my '57 major diesel, went to tighten the bolts a bit and the front one broke!! Wasn't the bolt that broke, oh no, it was the threaded part on the rocker shaft that broke!! Only a tiny little bit of it left. Any ideas on how to sort it or will I have to replace the whole shaft?

I will post a pic tomorrow.

Regards

[bluecraig0776]

Its ok I've just thought about welding a couple of nuts onto the rocker shaft.

[henk]

Bleucraig,

Glad you have a solution for the problem. Never the less, could you make some pictures from the broken part and how you have done the repair.

[bluecraig0776]

Of course I will Henk. I have lot of help from people on here, it is only right that I do my best to help others.

Here's a couple photos of offending part, Sorry for poor quality, photos taken on phone.

[JC]

Do you still have the piece that broke off? If so, I would clean it up, braze it back on, and then run a tap through it.

[henk]

I think welding will give to much heat and wil disvorm the bearing. Better brase it as JC says and use silverbrase.

[Supermanuel]

Take out the rocker shaft and replace the it with a used part. Even a complete rocker shaft is not not expensive from wrecker. Important that it is from correct engine. Various rocker arm lengths exist.

[bluecraig0776]

I thought quite carefully about this then decided to try welding it, if it went wrong I would source another part.

I welded in place a section of threaded rod (M8x1.25) by welding just a little section at a time trying not to generate too much heat. It seemed ok so I did the same with the other bit. Now I have two pieces of threaded rod sticking up which I can slide the rocker cover over then tighten down with two nuts.

I will post pics soon.

Regards

Craig

[Kim]

Congratulations on your repair job; it is what I would have tried first. Replacements from a wrecker are fairly easy to come by but being a cheap old yankee, I like saving money!

[bluecraig0776]

Congratulations on your repair job; it is what I would have tried first. Replacements from a wrecker are fairly easy to come by but being a cheap old yankee, I like saving money!

Me too! Working in a garage helps. My boss is quite nice about letting me use bits and pieces.