Blogs

The inner races of roller bearings can be very difficult to remove from there shafts without the correct tooling or extractor. You can trawl the web and find all manner of ways to remove them. The most common way is to heat the inner race and to try and lever off the inner shell using

Brake drums are manufactured in several ways and are made employing different materials. Bike drum brakes have a cast iron shell cast into the hub but the shell may also be made of steel. Some drums are made of only cast iron so no shell is needed, but these types of drums are very he

Since we have made so much replica petrol tanks in mild steel sheet, I thought it about time to mention the making of one, and what procedures I employ. Someone lucky was in ownership of a 1912 Ariel motorcycle with a rust eaten tank. The tank bottom had been completely rotted away wi

At first sight the engine looked in fairly good condition painted in heat proof black spray, with no apparent oil leaks. The engine also seemed to be devoid of those horrible marks and nicks left on cover joints when they have been more then caressed away from there gaskets. The custo

The bike was delivered to us as a rolling chassis plus 2 boxes of engine parts and frame fittings, the engine was in a total nut and bolt strip down and all was jumbled up. The first thing to do was to rebuild the engine . The cases were not too bad with the usual stripped threads on

This particular triumph Bonneville was more or less a bit of a barn find since it was used for 52,000 miles and then layed up in the back of a shed in 1972 where it languished under an oily sheet. The shed was obviously dry and airy as when I took delivery of it, it had very little ru

Since the birth of the motorcycle the preferred way of joining the hub to the rim of the wheels are with wires called spokes that had a bend on one end to pass through a hole in the hub and a thread on the other end to pass through the center of the rim and be held to the rim with a t

Finally I’m back after what seems a long time. Sometimes life gets in the way of bike building. I still haven’t finished the Honda 750 four project yet, but I felt it was time to to start another project bike. I am re-thinking some of the components on the Honda, so a litt

What is stainless steel? Stainless steel is a metal with high chromium content. Chromium does not oxidise or rust. What types of stainless steel are available? Stainless steels come in a vast variety of metallurgical make ups and finishes but the most common ones are 316, 303 and 304.

This is for all the people who want to know what Stotfold Engineering are getting up to and have an interest in what we do. We have created new videos giving you an insight of what we get up to and to keep you up to date in the development of our company. You can now follow us on Twit

I am not going to go into to much detail regarding cutting threads on a lathe because its boring and i want to keep you, the reader interested in this short article about cutting or generating a four start thread on my Dean, Smith and Grace (D.S.G) lathe. The D.S.G. as it is known, wa

Restoring museum artifacts come with an array of difficuties. Ancient clay pots can be pieced together using  glues that leave no visible sign of repair. Pieces of pot can be replicated and used to fill in the missing parts of the damaged pot, so matching any patterning. Carpets and t