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Forum: Messages

09-14-23, 02:29 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Thanks a Randy, you're far more patient than I...

Thanks a Randy, you're far more patient than I with dealing with part searchs !

Okay, so the door actuators use standard MS28774 & MS28775, that's easy.

The Cessna PNs are only found on the...

Forum: Messages

09-13-23, 04:35 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Can't find the break-out for the up-lock actuator...

Can't find the break-out for the up-lock actuator in the IPC - says see Fig 46... in Fig 46 .

Need cross ref's for MS28774 teflon packings .

Need alternative PNs for : S1120-363, S1120-181, ...

Forum: Messages

09-13-23, 04:31 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Yikes, that's not a good "fail" mode...

Yikes, that's not a good "fail" mode ....

Forum: Messages

09-12-23, 02:25 PM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

I have the "Cessna 337 Series Parts Catalog -...

I have the "Cessna 337 Series Parts Catalog - 1965 - 1969" .

In Fig 46 is shows the main gear door strut actuator but no break-out for the internal seals.

The up-lock and maingear doors are...

Forum: Messages

09-12-23, 01:15 PM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Finally found the leak(s) ! ! ! Turns out it...

Finally found the leak(s) ! ! !

Turns out it was the up-lock actuator - the last place I looked, all the way in the back under the rear seat rail. I can't believe that it made the mess that it did,...

Forum: Messages

09-03-23, 04:23 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Wslade2 - Actually, I started with the hand pump...

Wslade2 - Actually, I started with the hand pump since I used to own a Cessna 210 and the only hydraulic fluid leak I ever had was from the hand pump.

I can say unequivocally that the hand pump is...

Forum: Messages

09-02-23, 02:20 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Skymaster337B - That's my current thinking and...

Skymaster337B - That's my current thinking and I'm pretty sure it's been going on for many years.

Did you overhaul your actuator or send it out to Cox or another Repair Station ?

Forum: Messages

09-01-23, 02:45 AM

Replies: 24

Hydraulic leak - can't find the source

Views: 23,735

Posted By AV8ing

Hydraulic leak - can't find the source

I've got a 337D that's been leaking hydraulic fluid from the belly for some time, usually dropping 5" to 10" puddle but only after 7 to 10 days AFTER last flight.

I've pulled up the floor and...

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