Matronics Email Lists

I've been checking the list since the early 1990's. Not much activity, but I know lots of us are still lurking and available if needed

Clem Wehner
Lawton, OK
KF-IV, 912UL

We had the same problem, 15.5 volts with the engine running, 14 volts with the engine off. Turned out it was the meter. If you haven't already, try another meter. Read at the battery with the engine ...

Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking abo ...

In finishing up my KFIV after 24 years of building, I noticed that the more recent Rotax 912 installation manuals call for a fuel line running from the fuel manifold or "Y" on the engine, ...

I just started my KFIV- 912 engine today for the first time after 24 years of building. It ran great. But, the little Sendek FS-500 digital tach I use as a cross check reads high. When the Rotax T ...

Lowell,

We wanted to know what best case was with fuel flowing directly out of the wing tank, so we hooked a spare hose to the wing tank outlet and routed it thru the cockpit along the same path th ...

We have Facet 40105 and facet 40106 pumps and both deliver the same volume of fuel through them at the gravity flow below the header tank.

We also get fuel flow through them at gravity flow, but t ...

Fuel Flow thru Facet pump

My son and I just did the fuel flow testing on our classic KF-IV with 912 and plastic header tank behind the seat. Before we did the test we decided to determine the best ...

Our KF-IV is nearly completed, but I just watched the Kitfox video of the spring gear flexing on landing. The center of the grove gear flexes 2 or 3 inches below the belly. My concern is our brake li ...

I watched the webinar on fuel flow testing which stated gravity flow should be 150% of engine requirements at 25 degree deck angle and measured at the carb. But, what about a dual carb engine like th ...

What angle should the fuselage be raised to when doing a gravity flow fuel flow test on a KF-IV ?

thanks for the help.

Clem
Oklahoma

Our KF-IV has the plastic header tank behind the seat. Since the header tank is lower than the carbs, how can the engine run from the header tank in the event fuel flow stops from the main tanks for s ...

How do I properly torque the prop bolts on a GSC 3-bladed ground adjustable prop on a 912 engine. The bolts go through the hub and the prop flange from the front. This means the nuts are on the backsi ...

We're finally installing our GSC 68-inch wooden 3-bladed prop on a KF -IV-912. The instructions from GSC said the prop blades are balanced at the factory and are a matched and numbered set and the CG ...

We're about ready to start a 912UL in a KF-IV for the first time. It was installed years ago with fuel line simply going to the fuel pump then to the carbs. The current 912 installation manual shows t ...

I installed a Flightline FL-760 radio that has built in intercom into our KFIV. When the radio receives any signal, it cuts out the intercom. I called the tech dept at GulfCoast Aviation, the supplier ...

How much amperage does the 912UL starter draw during start?

I need to size the fuse providing power to the starter.

thanks for any help,

Clem
Oklahoma
KF-IV-912

My 912 did not come with a black plastic cover to go over the rear end of the engine. Has anyone added one of these to their 912? Is there any reason not to use one to keep dirt out, etc?

...

KF friends,

Where do I install the sender for a water temp guage on a 912 UL installation?

I appreciate any ideas.

Clem
Oklahoma
KFIV-912
[quote][b]

Has anyone put a 912 into service that was in storage for years before installation? I'd like to hear what you did to prepare it for running and if you had any problems with it.

Our 912 UL ha ...