Pulling the vaccum pump of an O-320?

Tram

Tram

Well-Known Member
Ok I'm trying to pull the pump. I'm doing good on 3 out of 4 nuts.

Top left (if seated in aircraft looking at engine) appears to be on a stud, won't be any problem as soon as I get bottom left out.

Anyone know of a good way to get the bottom left nut off without using colorful language and the "magical" $30 dollar tool? I'd just like to get it off tomorrow rather than next week. :)
 
Sometimes a flat head screw driver on a corner of the nut and a few whacks with a hammer can do the trick. But really, you're better off begging, borrowing, or stealing one of the special wrenches.
 
Yeh, I might have to give that a shot. I'm not pumped about paying $35 for a one time tool. I'm pulling the pump off and saying adios to the vacuum system.
 
Tram said:
Yeh, I might have to give that a shot. I'm not pumped about paying $35 for a one time tool. I'm pulling the pump off and saying adios to the vacuum system.
Click to expand...
No A&P you can bum one off of for an evening?
 
Roger said:
Sometimes a flat head screw driver on a corner of the nut and a few whacks with a hammer can do the trick. But really, you're better off begging, borrowing, or stealing one of the special wrenches.
Click to expand...


This is how I used to do it before I had the special wrench that only helps you 10% of the time... the other 90% of the time I still do it this way because the special wrench doesn't help.

Seriously... eff vacuum pumps ;)
 
trafficinsight said:
This is how I used to do it before I had the special wrench that only helps you 10% of the time... the other 90% of the time I still do it this way because the special wrench doesn't help.

Seriously... eff vacuum pumps ;)
Click to expand...
Seriously. On the Navajo you have to pull the oil filter to change a vacuum pump, and even then it's still not easy. I've heard that on some Mooneys you actually have to take the engine mount bolts loose to get enough clearance from the firewall to get the pump off.
 
Roger said:
Seriously. On the Navajo you have to pull the oil filter to change a vacuum pump, and even then it's still not easy. I've heard that on some Mooneys you actually have to take the engine mount bolts loose to get enough clearance from the firewall to get the pump off.
Click to expand...
Wow.
fffuuuu.jpg


That really blows. (sucks?)
 
Roger said:
No A&P you can bum one off of for an evening?
Click to expand...

When I was a wrench, and someone asked to borrow a tool.....

"BORROW! BORROW! Nobody borrows! " The hazing would continue for about 10-15 minutes, then I would hand it over, and come and hassle while the tool was being used by the borrower. Just a fun way to rib someone.
 
Tram said:
I'm gonna try and screw driver/hammer combo tonight and then I'll call the A&P.. :)
Click to expand...
The great thing about the screwdriver/hammer combo is that if you have to use it on one of the nuts, chances are it's so hard to get to that that's how the last mech installed the nut, and said nut is therefore not very tight.
 
Roger said:
Good to hear!
Click to expand...

Do you see any issues with using some automotive gasket maker to make a gasket for the vacuum pump pad block off plate?

I don't like reusing gaskets and I didn't get one when I got the plate, was supposed to come with one, but oh well.

Thinking about just throwing some high temp gasket maker on there..
 
Tram said:
Do you see any issues with using some automotive gasket maker to make a gasket for the vacuum pump pad block off plate?

I don't like reusing gaskets and I didn't get one when I got the plate, was supposed to come with one, but oh well.

Thinking about just throwing some high temp gasket maker on there..
Click to expand...
You could try it, I don't know that it'll work. If you can get a hold of some gasket material (cork sheet) and cut out your own gasket, that would work better.
 
I would say no, get a vacuum pump gasket, try the local airport shop or maintenance shop, you'll find one


Sent from 1865 by telegraph....
 
Well, I wound up just making a gasket out of cork gasket material.

If it starts leaking, I'll order a pump gasket.
 
You must log in or register to reply here.
Back
Top