White metal casting for restoration

[mygoggie]

You need to look at your phone!

Your casings are ready. I need to go through to Walmer in a little while so can drop them off if you want.

Thanks so much Guy! Will look at my phone

[mygoggie]

A bit of an update ...


Yesterday I made some time to tin the two casings @ghouwens so kindly made for me. I must say it has become a lot easier getting a good tin coverage although it still is a task and a half ...





This morning I made a few changes to the jig and installed the first casing to be cast full of white hot white metal...






Tomorrow when I am feeling nice and fresh I will do my level best to cast a good new casting! Hold thumbs!

[SinWolf]

GOOD LUCK with the casting today !!!!!!

[mygoggie]

And the effort was in vain ... we have a leaking vessel!










Onto stripping and beyond ....

[Spiceman]

Ai. Sometimes it pours. Good luck. Aanhouer wen. Ons staan almal agter jou en moedig jou aan.

[mygoggie]

I cleaned everything and made some refinements to the clamping plate to accommodate the smaller diameter casing. Taking my time to seal everything well, resulted in this ...










A very neat looking casting!

A bit of filing to remove the excess white metal and we have a very good casting!








Onto making the second casting. First step is to get all parts to temperature. This takes quite a while and some patience is a virtue here ..







I had to get the Boss to come and help as the final casting steps cannot be done by only one person. At least she is still smiling!





That looks purty good!






A bit of wire brushing to remove all the exhaust sealer and ...







And another very good casting!






Ringing of a white metal casting is a test to show that no cracks exists in the casting. A dull thud is the sound you do not want to here, so this casting is all good!

Click the image to listen!





Brain is still working on the lathe's wiring design and also the grooving of the bush ...

[Francois Theron]

Looks like you've done it before

[mygoggie]

Looks like you've done it before

Too many times!

[Spiceman]

Good work. Many years ago I had a Datsun P510 that needed a new extension housing bush. I should have known you then.

[mygoggie]

Uncle Brian helped me out again today by cutting the newly cast bushes to tad undersize and drill the hole.

Looking good even if I say so myself!







Yes Guy, I can also do the double casing shot!






Tomorrow I will take the transfer case and the bush to Loftie to have installed and machined.






Slowly getting there!

[grips]

Just make sure you have the white metal bearings cut to the correct clearance. It will be critical in a high speed application of prop shaft. White metal bearings can seize in seconds if not run at the correct clearances.

[mygoggie]

Just make sure you have the white metal bearings cut to the correct clearance. It will be critical in a high speed application of prop shaft. White metal bearings can seize in seconds if not run at the correct clearances.

We did investigate this and the correct clearance for oiled white metal is 0,05 mm (2/1000") on diameter. This was what was done then by Loftie and his crew.

The sleeve is a nice and smooth sliding fit and rotates freely with no lateral play.

[JohnnoK]

Just make sure you have the white metal bearings cut to the correct clearance. It will be critical in a high speed application of prop shaft. White metal bearings can seize in seconds if not run at the correct clearances.

And make sure your oil supply is unhindered and CLEAN.

[mygoggie]

And make sure your oil supply is unhindered and CLEAN.

On this one I am a bit pedantic ... I change all the oils every 5000 km. Cheap maintenance!

I am onto cutting the slots. I think I have come up with a way and solution. Test run over the weekend using some scrap uPVC piping of similar diameter.