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timbo
Diver
Posts: 24
Joined: Fri Apr 02, 2010 1:56 pm
First Name: tim
Location: belgium

Re: bauer compressor

Sun Mar 18, 2018 5:56 pm

The strip down continuous. I am almost there.
For the rest everything looks quite fine. There is a litle spot of rust in the third stage.
Probably some moist in it while standing still for a long period. Dont think its to bad and can
probably be cleaned out with a light pass of a hone. The inlet valve of the third stage has a litle carbon and
some dirt but for the rest everything looks clean.

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third stage piston. Looks pretty good.

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Third stage head

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third stage cylinder

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second stage head

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second stage cilinder

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second stage piston

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second stage piston

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timbo
Diver
Posts: 24
Joined: Fri Apr 02, 2010 1:56 pm
First Name: tim
Location: belgium

Re: bauer compressor

Fri Mar 23, 2018 6:14 pm

Just done some more disassembly. It is pretty much in pieces now.
Just the valves are stil in the heads. I wil take them to my friend who has the special bauer
tool to remove them. Did not find anny more major problems except for the rockershaft who drives
the oil pump. There is some wear on the rocker but I don't think its to bad. there is however some excessieve play
between the end of the shaft and the bushing in the housing. The front of this shaft runs in a roller bearing but the back is
just a plain bush in the alluminium housing. I think I will machine a brass bush on the lathe to eliminate this wear.
Should I make use of the opportunity to change the needle bearings? When the compressor was still in one piece I could feel a little
play when I turned the flywheel back and forward. I dont know if this comes from the bearings but its in pieces now and I have access to them.
I cant seem to feel anny play on them now tough. The bearings are marked with a maker (INA) These are still in bussines today,so perhaps I can find them somewhere.

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the front bearing of the oilpump drive shaft. There is rust!!

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The red paint of the inside of the crankcases is cumming of. That cant be good. Maybe they switched from
miniral oil to synthetic and this oil ate the paint. I dont know. Here you can seen the plain bush for the rocker shaft in the housing.

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things that wil need to be replaced. I am not sure about the needle bearings.

User avatar
timbo
Diver
Posts: 24
Joined: Fri Apr 02, 2010 1:56 pm
First Name: tim
Location: belgium

Re: bauer compressor

Fri Apr 13, 2018 5:05 pm

First repair done!!! New ball bearing for front of oil pump drive shaft and a home made
brass bush for the back. It came out just fine.

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after drilling the hole on the drillpress I made a pilot on the lathe and reamed the hole to 22mm.

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The hole after reaming

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I machined the end of the shaft on the lathe until it was perfectly round again. To 18mm

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Machining the bush on the lathe

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end result


regards

Tim

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SurfLung
Master Diver
Posts: 1409
Joined: Sat Jan 01, 2011 2:03 pm
First Name: Eben
Location: Alexandria, MN
Contact: Website

Re: bauer compressor

Thu Mar 21, 2019 1:28 pm

Wow. You'd done some beautiful work there. That compressor is going to be something special you can be proud to see it running again.
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

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