VICKERS MK6B's resto

[David Herbert]

Very interesting link Snowy. I didn't realise that you can 3D print a sand mould direct. Beautiful result but must have been expensive as all that high tech gear must be paid for by the work it produces.

David

[colin jones]

Thankyou all for your input. I have decided to go down the path of fabricating a new sump and riser. I think recasting would be very expensive and I feel quite confident in making the parts myself which I will do while the professional people do the head, block etc etc. On a good note however, I removed the oil pump from the crank case and pulled it apart. It is in great condition so I just cleaned the gears and blasted the housing and it will work like a new one which is not bad for 80 or so years old. The sump is 100% not useable as you can see and what you can't see is just as bad. At least I know what I have to do.

[colin jones]

The two brass sieves are good as is the 6 cross members that hold them in place. They will be used again.

[colin jones]

I managed to get the crankshaft out with no issues and it does look good and so does the block. I certainly does have sleeves so that is another thing in my favour.

[colin jones]

I'm really happy that 4 of the 6 pistons came out without too much drama but the other two will take a bit more time. I cleaned the top of the pistons and they are all marked 1-6, dated 1936 and the military markings as well so they certainly are originals.

[Dave Mills]

Hello Colin, have been watching the rebuild and am amazed at the attention to detail. Well done!!. Like a lot of us we are all itching to assist and wishing we lived closer. I read the last post in regards to the pistons.

I may be wrong and way off the mark here but I feel from the photos they look much the same as the Rolls Royce "B" series engine pistons. A few little differences as in the expansion grooves in the skirt etc.

Have just overhauled our "B60" out of the Humber and spotted enough similarities I believe to prompt me to make contact.

"B60"
Bore - 3.5 Inch (88.9mm)
Stroke - 4.5 inch (114.29mm)
Capacity - 259.78 cu. in. (4.25 Litres)

If they are close enough to wet your appetite I am willing to post a NOS (0.20 OS) and a Used Standard piston to you for comparison.

I also now the location of ample NOS - Standard - 0.010 OS and 0.020 OS piston sets a lot closer to you than Seymour.

It makes it easier seeing your block is sleeved the only maybe could be the piston Pin location and diameter.

Cheers,

Dave.

[colin jones]

Hi Dave, thanks for the offer but I am pretty sure the B60/80 engines have different pistons but as luck is partly on my side I will possibly be able to use 4 of my 6 pistons and just get new liners. I have just put the block in my press and got the last two out and one liner came out with it with relative ease. It is no biggy to get two new pistons made of the same size so I will do that as the last two have very bad pitting on the top and I don't think you could weld them and expect it to hold up to the heat and pressure they are subject to. All in all I am glad to have my engine back and also to be doing it myself.