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One design had inlet at the rear of lower intake manifold, on my manifold this area is now cut away along with porting for EGR sys. in order to lighten manifold for aviation use, (see also Ed Anderson's or Tracy Crook's web pages) passages back to eng. from man. is blocked off in housings.
David.
-------------- Original message --------------
From: "Jeff Whaley" <jwhaley@intldata.ca>
>
> Hello Readers, I'm a new subscribe. I've been reader the archive for a
> couple months now.
>
> What's my story?
> Well I have a Wag-Aero 2+2 which originally flew with a 3.8L Ford V6; got
> about 20 hours out of the engine and 3.5 flight hours before experiencing
> engine misfires ... turned out to be a broken valve keeper which caused the
> rocker arm to chip a piece from the head. I loved the Ford but due to its
> excessive weight decided to rebuild an inherited Mazda 13B engine instead.
>
> The rebuilt engine has been running on stand with EC2 and RD-1C. Engine is
> now hanging on the airframe and I'm rewiring everything for final
> installation.
>
> I have a question related
to the original Mazda heater core configuration:
> How was it connected? There is a 5/8 or 3/4 water connection on the rear
> iron but there is no mating connection anywhere. The water pump has a small
> 3/8 connection that feeds into the original intake system. Was there a "Y"
> in the water pump outlet to radiator or what?
>
> Jeff Whaley
>
>
>
>
> --
> Homepage: http://www.flyrotary.com/
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