There is a need with modern diesel vehicles to filter the gasses from the crankcase. This prevents the build-up of damaging carbon and oily deposits.
The components worst affected by this are:
This leads to the following negative effects:• Failure of critical components such as engine vales and turbochargers
• Increase fuel consumption
• Compromised engine performance
• Increased emissions
This problem is compounded on late model vehicles with the use of exhaust gas recirculation (EGR). The oil and contaminants from the by-pass gases bond with the carbon and soot from the recirculated exhaust gas. Blocking off the exhaust gas recirculation does not solve the issue, as the oily residue is still being pumped through the engine – even if the carbon and soot are not.
The images below show just how bad this build-up can get. It should be a spotless cast aluminium intake manifold. Instead it is coated with 6-12mm of oily carbon crud all over the insides.
Asgard Engineering has developed bolt on filtration kits for many vehicles using the MANN+HUMMEL ProVent® range.
The images below show an Asgard Engineering kit fitted to a Toyota Land Cruiser 70 series V8 diesel.
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