Direct injection seeing carbon build up on inlet valves

Dry valves allow carbon deposits to stick and build up, explains expert

Direct injection seeing carbon build up on inlet valves

Experts at TUNAP have reported a rise in the number of cases of carbon build up on direct injection engine inlet valves.

A TUNAP spokesperson said: “Direct injection is exactly that, the fuel is injected directly into the combustion chamber under high pressure which gives the manufacture the ability to measure exactly how much fuel is being injected when combustion occurs.

“The results are improved power, lower emissions and greater fuel efficiency and that is why it is favoured by more and more vehicle manufactures.

“The downside of this system is that the valves remain dry and allow carbon deposits to stick and build up.”

TUNAP say its valve cleaning system is “quickly solves the problem without complex disassembly”.

The Microflex 933 valve cleaning granulate removes all deposits and contamination on the valves using compressed air.

The spokesperson added: “The cleaning system is safe and can be used on plastic and aluminium parts.

“Used granulate are simultaneously vacuumed out together with the dirt and carbon.

“Microflex 936 neutralising solution dissolves residual granulate particles and prevents any getting into the combustion chamber.”

TUNAP recommends preventative maintenance, once the valve clean has been completed the regular use of 974 injector direct protection for petrol or 984 injector direct protection for diesel to prevent the problem from reoccurring.

For further information about TUNAP, select ‘more details’ below.

Home Page Forums Direct injection seeing carbon build up on inlet valves

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