Gallery

Some governors we have overhauled through the years

C290D3's and a C290D4 McCauley

Woodward 210680 V-Band styles

Hartzell F-6's

Hartzell's and Woodward Pulley Heads

Early B210105 Woodward

Newer 210800 Woodward

McCauley and Woodward

Woodward Pulley Head

Hartzell S Series

Hartzell S Series

E Series Hartzell

Woodward B210710's

New Aero Technologies ATH-1

ATH-1 Replacement for Hartzell H-1

Before and after overhaul photos

McCauley DCF290D7's as received

Same pair after overhaul

DCFS290D7 (Master) and DCFS290D8 (Slave) as received

Same pair after overhaul

DCFS290D7/T3 and DCFS290D8/T3

Same pair after overhaul

Governors have been sent in for overhaul for various reasons and we have seen and repaired everything. We take photos of extraordinary issues for our customers. Showing them what we found is the easiest way to explain it. Below are some of the photos.

Pitting on the bearing race, pilot valve, and bearing of an old Woodward governor.

I often take photos next to the governor data plate so the customer can see it is theirs.

Obsolete style lever, pitted pilot valve, bearing and race, and also wear on the drive spline of the drive gear.

Pitting on a pilot valve right in the bearing track and a used serviceable pilot valve with no pits.

Same set as above. Photo taken so customer can see what we will use to replace theirs with.

More pictures of pitting.

This governor came in with metal contamination from the engine.

We take pictures of all the metal throughout the oil and save samples of the metal to help the customer determine where it came from.

More metal chunks.

Closer view of the contamination.

This is a brand new Hartzell governor straight from Hartzell. Customer said it wouldn't work at all.

I pulled off the top cover and the speeder spring was found like this. It is cone shaped and upside down.

The spring fits tight in the spring cup on the pilot valve.

The top is smaller and the control shaft can now push down on it. It was just flipped back over and everything tested great.

This is the sync coil that is inside of a Woodward B210710. The crimp had come loose and the coil dropped down allowing the flyweights to grind away at the coil.

This is showing the four crimp spots on the other side of the coil assembly that I used to replace the damaged one.

This is a Lycoming governor drive adapter that came in attached to a governor and had a crack in it. The customer had no idea. I was able to locate another good drive adapter for him.

This is a Woodward idler gear that is from before they had a bearing pressed into them. The idler gear can't be used.

This is a Hartzell that had been on a shelf for years. The customer wanted to function test and use it. I saw rust on the drive gear and disassembled to find every steel part inside rusty.

This is the rusty steel sleeve inside of the aluminum top cover.

Governors in various stages of the overhaul process.

Some simple McCauley's ready to build.

A pair of Woodward Pulley Heads.

D8 McCauley parts. Sync motor assembly, etc.

A pair of Hartzell's laid out.

Working on several. Hartzell to the left, this is a Woodward, McCauleys to the right.

D7 and D8 McCauley

Governors being overhauled and manuals laid out for reference.

Just painted, ready to assemble and test.

Several Woodward governors.

Alodine (Chemical conversion coating) on the aluminum parts.

Shop Photos

Our governor test bench.

Upgraded with a polished aluminum control panel fitted with digital gauges.

Unfeathering governor mounted on the test bench for testing.

1940 US Navy Greer Hydraulics propeller governor test bench from Pearl Harbor, HI.

Magnetic particle inspection bench.

Magnetizing a governor drive gear on a copper rod.

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