Joe,
Mark is correct...............Do not recall if it is for EGR (exhaust gas recirculation) or intake manifold heat...........Definitely needs to be blocked off and
for our aircraft use ideally the opening in the exhaust insert could be welded shut or otherwise closed off..............IMHO...............Lynn what say
you on this matter
??.....................
Kelly Troyer
On Fri, May 25, 2012 at 7:08 PM, Mark Steitle <msteitle@gmail.com> wrote:
Joe,
The rectangular holes (just below the intake ports) on my 20b lead down to the exhaust ports.
Mark
On Fri, May 25, 2012 at 4:55 PM, <jskmberki@windstream.net> wrote:
Does anyone know where the rectangular opening located below the intake ports on a 89 center iron housing goes to? I am looking to drill and tap for 10-32 in this area to hold a plate that will secure the slide throttle to the engine. The intake ports are not used and there are 2 existing tapped holes that would secure a cover to block off the ports. Don't want to drill into a water passage. Thanks for any help.
Joe Berki
13b P Port
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Kelly Troyer
Dyke Delta_"Eventually"
13B_RD1C_EC2_EM2
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