Had to remove my vacuum pump today

[chriscalandro]

It was in the way of other things I needed to get to. 

Id like to give a swift kick in the butt to the engineer that designed how that mounts into my 67C

[takair]

Just now, chriscalandro said:

It was in the way of other things I needed to get to. 

Id like to give a swift kick in the butt to the engineer that designed how that mounts into my 67C

Did you have the special wrench another engineer designed to make it easier?  If not, it will make life a lot easier going back on.

[chriscalandro]

I did. But if you're looking at it from the side so the prop is on your left, that lower bolt on that side can't be reached with the special wrench. 

Only way I could get it off was with a flat head and a hammer. That was the easy part. Getting that but back on was another story. 

I used grease on the end of a flathead, stuck it to the stud and pushed the vacuumed pump against it to get it lines up and straight. Then hammer and screwdriver again. 

 

Back on probably took 40 tries and a lot of dropped washers. 

[Andy95W]

2 hours ago, chriscalandro said:

Only way I could get it off was with a flat head and a hammer. That was the easy part. Getting that but back on was another story. 

I used grease on the end of a flathead, stuck it to the stud and pushed the vacuumed pump against it to get it lines up and straight. Then hammer and screwdriver again.

25 years ago, that's exactly how I was taught to do it by a very old IA when I was working as an apprentice.

[carusoam]

Is this the funky vac pump challenge / fancy tool we are discussing?

https://www.aircraftspruce.com/catalog/pdf/Rapco Pump Wrench.pdf

 

Best regards,

-a-

[RLCarter]

1 hour ago, carusoam said:

Is this the funky vac pump challenge / fancy tool we are discussing?

https://www.aircraftspruce.com/catalog/pdf/Rapco Pump Wrench.pdf

 

Best regards,

-a-

That's the one, works well

[Jim Peace]

get Garmin G5's and leave it out.....

[Prior owner]

On ‎10‎/‎26‎/‎2019 at 10:06 PM, RLCarter said:

That's the one, works well

Yep, you can replace the pump without pulling any cowlings with that wrench.

[RobertGary1]

30 minutes ago, Jim Peace said:

get Garmin G5's and leave it out.....

Personally I still want an attitude backup instrument. Vacuum instruments are cheap and good insurance.

-Robert

[EricJ]

32 minutes ago, RobertGary1 said:

Personally I still want an attitude backup instrument. Vacuum instruments are cheap and good insurance.

-Robert

If you get two G5s, one for AI and one for DG/HSI, the DG unit provides backup for the AI if you want it.   i.e., you can configure either to do either job, so if either fails and you really want the other, just switch the display.

[KB4]

1 hour ago, EricJ said:

If you get two G5s, one for AI and one for DG/HSI, the DG unit provides backup for the AI if you want it.   i.e., you can configure either to do either job, so if either fails and you really want the other, just switch the display.

And each has a backup battery that will last 4 hours. So you have up to 8 hours of back up.