Products

First for Protection

Enginewise products provide unbeaten protection against corrosion for classic cars and motorcycles, boats and yachts, light aircraft and engineering models.
They have been specially designed and manufactured in the UK to deal effectively with common problems which lead to corrosion. Enginewise products are easily applied and work quickly to help avoid expensive restoration work.

Humidity - the "enemy within"

BS 1133 section 19 states that the relative humidity of the atmosphere is the dominant factor in determining whether the corrosion of metals will occur. The corrosion of iron is extremely slow at R.H. below 60%, but becomes rapid at higher humidities. Generally for engineering products 50% R.H. has been found to be an acceptable maximum.

The graph illustrates how Enginewise dehydration plugs reduce the humidity of the air within an engine from, typically, 65-85% RH to a safe level below 50% RH. The results of tests conducted with one capsule in 500cc of air demonstrate that safe levels are achieved within 2 or 3 hours and then maintained.

The capsules in the ENGINEWISE dehydration plugs will cope with a 1 ltr sealed volume of air. The sachets of desiccant supplied in a dehydration kit will cope with up to 5 cubic feet of air (approx. 140 ltr).

Use Dehydration Kit plugs during vehicle and engine lay-up

An ENGINEWISE Engine Dehydration Kit consists of a modified Engine Closure Kit and ENGINEWISE Dehydration Plugs. Dehydration Kits are used when engines are laid up.

Dehydration plugs help to prevent rust and corrosion. It is a recognised and recommended technique for inhibiting engines in storage. Dehydration plugs have been used extensively in the aircraft industry for many decades. The same level of protection is now available from ENGINEWISE for motor car and motor cycle engines with 10, 12, 14 and (with an adaptor we supply) 18 mm spark plug threads.

Sets of dehydration plugs are inserted in place of spark plugs when vehicles are, for example, stored for the winter. They are, of course, a wonderful anti-theft device, but their primary purpose is to eliminate moisture and the damage moisture does. They also help to prevent valves hanging-up.

A capsule of indicating desiccant is inserted into the barrel of the dehydration plug, the tightly fitting cap is then replaced so that the desiccant works on reducing the relative humidity within the engine cylinders. The design of the plug maximises the capsules exposure to the air in the engine. The desiccant changes colour from orange to clear when it has absorbed all the moisture it can hold. Each capsule has more than sufficient capacity to achieve the target level (35-40%) of Relative Humidity in the closed cylinders, those with open valves (inlet or exhaust) obviously access larger volumes of air and may need to be replaced.

To reduce the relative humidity of the air within the inlet and exhaust sytems a large quantity of desiccant is needed. A single ENGINEWISE sachet of desiccant is sized to deal with exhaust pipes up to 2" Diameter (50mm) and up to 12 ft (3.6m) in length including typical silencer boxes. To create a completely sealed environment within the engine it is necessary to close the inlet(s) to the air filter(s) and exit from the exhaust pipe(s). The ENGINEWISE engine dehydration kit includes heavy duty poly bags and elastic bands to facilitate this.

Engines which are laid up should ideally have the internal surfaces and components of the engine protected from the potentially corrosive effects of the moist air within the engine.

Prolong the life of dehydration capsules with a Regeneration Kit

Dehydration capsules can be regenerated using the regeneration kit. Silica gel can be regenerated by placing in an oven. However , the capsules themselves cannot be regenerated in this way as they would melt. Instead, they are sealed in a container of silica gel beads, which can in turn be regenerated in an oven.