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Re: [T3] Single Carb Heat Riser


On 13 Nov 2001, at 21:07, shackedup wrote:

> I can't find an explanation of the heat riser system in any of my books.  Am
> I right to assume that it is essentially a small exhaust tube that runs
> alongside the intake manifold and empties into the main exhaust flow?  How
> does the butterfly valve work...  Closed when warm or closed when cool?  Is
> it true that a plugged heat riser can cause hesitation and even engine
> damage?

You've explained it correctly. The valve would be open when cold.

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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