Search found 5056 matches

by Bill Shields
Mon Sep 10, 2018 8:00 am
Forum: Live Steam
Topic: welding boiler
Replies: 13
Views: 1521

Re: welding boiler

It is my understanding that there are now MIG procedures for code welding that requires very specific rod and procedures and certifications.

Never seen it done - but that does not mean that it cannot be done.
by Bill Shields
Sun Sep 09, 2018 2:43 pm
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 586

Re: gun drill oil feed

all gun drilling that I have seen / supported / programmed is done with a hollow drill and the liquid coming down to the cutting face, flushing everything out from the bottom of the hole. I have never seen a spraymist being used for gun drilling, but then have never seen the need for it since the sy...
by Bill Shields
Sun Sep 09, 2018 8:02 am
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 1729

Re: Understanding types of copper?

as I said - in Europe - pipe is pipe and tube is tube.

if you order 7/16 TUBE, what you will get is 7/16 OD
by Bill Shields
Sat Sep 08, 2018 5:39 pm
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 1729

Re: Understanding types of copper?

just remember that some of these designations change when you cross borders....
by Bill Shields
Sat Sep 08, 2018 8:42 am
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 1729

Re: Understanding types of copper?

firing on gas changes the entire dynamics of the situation..
by Bill Shields
Sat Sep 08, 2018 8:41 am
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 3228

Re: Re-facing Slide Valve & Ports

pretty standard stuff. doubt it is lack of lubrication I this case..
by Bill Shields
Fri Sep 07, 2018 9:55 pm
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 3228

Re: Re-facing Slide Valve & Ports

if you see any oil at all, that is more than enough...by all means check that it is working, but if you see any oil all should be ok. Have you ever seen how little oil a full size steamer actually used (all things considered)? Our little locos typically DROWN in oil by comparison. I would think more...
by Bill Shields
Fri Sep 07, 2018 9:34 am
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 3228

Re: Re-facing Slide Valve & Ports

bronze on bronze is a good combination for your pistons/valves. the primary goal should be to not damage the bores of the pistons / cylinders. are you using any type of metallic piston / valve rings? If you are, and they are CAST IRON, then perhaps cast iron also for the pistons / valve bodies could...
by Bill Shields
Thu Sep 06, 2018 8:38 pm
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 3228

Re: Re-facing Slide Valve & Ports

this should be obvious but....

before you cut the groove, be sure that you have all the 'slop' out of your valve gear....
by Bill Shields
Thu Sep 06, 2018 8:14 pm
Forum: Milling Machines
Topic: Bradford Milling Machine
Replies: 5
Views: 825

Re: Bradford Milling Machine

even if they are the 'same machine' be careful about expecting parts to be 'interchangeable'.

Some of these critters start out as the same casting(s) but have no guarantee that all (or any) of the other parts are the same.
by Bill Shields
Thu Sep 06, 2018 8:11 pm
Forum: Riding Scale Railroading
Topic: Small Diesel engines for motive power
Replies: 33
Views: 3256

Re: Small Diesel engines for motive power

another way to 'eliminate the lawn mower effect' is to put steam through the exhaust :shock:
by Bill Shields
Thu Sep 06, 2018 8:02 pm
Forum: Live Steam
Topic: Re-facing Slide Valve & Ports
Replies: 53
Views: 3228

Re: Re-facing Slide Valve & Ports

You have it.

In REALITY, if you can work it out, you want the 'leading edge' of the valve to ALWAYS be 'peeking over' the edge of the groove at all used cut-offs.
relief 3.png
another picture....for others who may be just 'getting in the groove'....