A forum for all things technical regarding Dobles or steam cars in general.
The raw castings are tapered on the flange faces, this because the pattern is split into two halves to mould and tapered to allow the two halves to come out of the sand, this is called draw, because of this there is no flat surface to clamp
Patterns and core boxes now complete these are off to the foundry for a trial pour next week fingers crossed
lots more of the smaller parts have now been made and the float bowls arrived from the genius of the lamp. really looking forward to seeing one work soon
The first of the new piston rings arrived yesterday , just unpacked them for a look, very pleased, these rings are stepped/lapped joint rather than the traditional angled cut, the idea being that there is less chance of steam leaking throug
lots of parts now under way machining, it has been quite a long journey getting to this point with all the different drawings and changes Doble made just establishing what went with what, 10 different designs to this one engine !!! differen
A few months ago when we dismantled Doble F30s engine, an E engine not an F as you might think, we noticed that the key in the lifting link shaft was loose and rotated in the keyway and we realised that we would have to make a new shaft , n
@alsancle do I recall a comment you made in the past on another forum about a Definitive Steam Book? Is there a “Steam Bible”, or comprehensive book that is a “must have”?
What do you do when you find out there is nothing out there even remotely similar? Obliviously you just make a batch from scratch.!
This is an original draft booster from the New Zealand bus project which I am in the process of rebuilding but also taking the opportunity to measure and scan/draw up the motor components as I have to model and recreate at least two of thes
We discovered that the expansion links were worn in one engine and broken in F30 so decided that all the engines were probably in a similar condition and set about making these parts. these parts are now ready for heat treatment and then gr
