Ship Nostalgia - Engine Building at William Doxford and Sons

Aukai said:

I could not see all of the pictures from the links, but Is this close, or too small?

Click to expand...

great pic, thanks

Likewise I could see most of the photo's.

I found some pics of that shop on google images.....


Indicating a part like this must take forever..... What you think their tolerances were like on a part this huge?


WOW! That has to be about 12" thick

Cooter Brown said:

I found some pics of that shop on google images.....
View attachment 313494

Indicating a part like this must take forever..... What you think their tolerances were like on a part this huge?
View attachment 313490View attachment 313491View attachment 313492

WOW! That has to be about 12" thick
View attachment 313493

Click to expand...

Quite probably I've seen crank webs 12" thick probably up to 14" and there maybe bigger
I don't know what their tolerances were but they'd have to be pretty tight because every part is interchangeable.

The largest engine I ever worked on was 760 mm bore and 2.2 m stroke full speed was 80 RPM The engine was 6 cyl. inline turbo charged, two stoke producing 14,000 HP. Driving a single fixed propeller directly coupled, no clutch no gearbox.

The big end and main bearings are all shells these days, no scraping in on site, just take them out of the box and in they go, the clearances are fairly fine too as they always use straight SAE 30 oil, no additives on the big cross head engines, so they don't want too much clearance.

Smaller trunk type engines will use additives

*Confusion* I guess we have two resurrected Threads going on this.

Here's results from the Wayback Machine with all the pictures - I posted on the other thread also.
I wonder where all those machines are now...