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 a

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

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 the

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 no

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

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 cent

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 s

The bicycle in question, ripe for a complete restoration is a 1954 Rory O’Brien racing bicycle. My father purchased the frame and forks for £17.10s unpainted. The frame was manufactured from Reynolds 531 tubing and all the tubing was brazed

A 1930 s triumph tank was brought into the workshop with the customer saying he cannot find anyone to restore it to it’s original fuel capacity. The problem being it had been “Petsealed” 30 years ago and the modern fuels contain

Recently we were asked to repair an  umbrella stand. The left hand stay was missing. Replacing parts on cast iron objects can be expensive. To cut down on costs and avoid having to go to a foundry to have the part cast I decided to replicat

What different types of lawnmower are there? Cylinder & Rotary mowers are the most common types of lawnmower used today. These two mowers come in many guises, the cylinder type mower is either, an electrically operated one or is mechani

Here at Stotfold Engineering we don’t just work on pristine bikes. We work on many bikes that have had a hard life and are in need of bringing back to a good working standard. This one of our customers bikes. He had bought it after it

When we require a classic motorcycle restoration to be undertaken by an ‘expert or professional’ motorcycle restorer we have to expect the complete job to cost more than the classic bike is worth. This is a very common occurrenc

Finally I have reached the stage of reconstruction. The frame has returned from the painters (‘Full Range Finishes’ – Letchworth) and the swinging arm freshly chrome plated (‘Doug Heath’ – Baldock). First

NAMES: Aqua blasting, also known as vapour blasting and wet blasting. WHAT IS AN AQUA BLASTER?: Essentially it is a machine that operates using a medium compressed air supply and a high pressure pump. The sump of the cabinet type aqua blast