I know that the trad is different but there is a big problem with engine hot air entering the ventilation system. Below is my solution to this from an earlier post.

It should be noted that in the standard setup there is a gap in the foam where the bonnet hinge is and this allows hot air to enter the air intake. Very poor design!

Originally Posted By Gambalunga




My mod for the heater/aircon intake was finished today. I made the blocking piece from a sheet of PVC cut and bent into shape. Where the material was bent a crack opened but it is only in the upper surface and I will use a little black silicon to fill it. If ever I replace it I will probably use a piece of aluminium instead now that I have the shape needed.

The closed cell foam is fairly light and will sit against the under surface of the bonnet insuring that only outside air, not hot engine bay air, enters through the louvres and into the heater airbox.

Peter

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