Adaptor (Requires TA212)

The Pico standard compression hose (not supplied with individual adaptors) must be used in conjunction with the appropriate adaptor for carrying out Engine Compression tests with the WPS500X.

Adaptors are available for the following spark plug thread sizes

M10 short reach (1.0 mm pitch)

M10 deep reach  (1.0 mm pitch)

M12 deep reach  (1.25 mm pitch)

M14 short reach  (1.25 mm pitch)

M14 deep reach  (1.25 mm pitch)

M16 for Ford triton style engines  (1.5 mm pitch)

M18 for older engines (1.5 mm pitch)

Please ensure that the adaptor you select is the same thread size and no longer than the tip of spark plug you are replacing.  While using a shorter adaptor than the spark plug you are replacing may produce results that are slightly low using one that is longer may damage your engine.

Adaptors for WPS500X - M18

Connection to a vehicle component is key when diagnosing a fault. Often, finding a way of connecting your generic tool of choice to the particular vehicle you have in the workshop is not always straightforward.

In this particular focus piece, we concentrate on the M18 adaptor from our available range for the WPS500X Pressure Transducer.
The M18 is often used once a spark plug has been removed from the engine. The M18 adaptor is then used to conduct a compression test on a range of petrol (gasoline) engines with the WPS500X.

During a recent case study report, however, we found another use for this adaptor on a 2003 Volkswagen Polo (engine code: AZQ):
"The oxygen sensor was removed and the compression hose of the WPS500X (with compression hose adaptor TA220 M18) was installed into the exhaust manifold to measure the back pressure during cranking."

Why not take a read of the VW Polo case study?


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