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timbo
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Posts: 29
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
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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.

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

Re: bauer compressor

Mon Aug 17, 2020 5:20 pm

It has finally come to work again on the bauer. The cylinders have been sandblasted and painted. They still have to be baked. Most parts of the crankcase have also been sandblasted and ready to spray. I am blown away by how rough some parts are cast. the oil pump is actually a modified diesel injection pump. The fuel rack is fixed by point strokes at a certain flow rate. I prefer not to touch this and that's why I just let it soak in gas oil. There was a bit of rust on the ball of the oil pressure regulator. I've pollished it a bit with very fine sandpaper and hope it will be ok this way

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

Re: bauer compressor

Wed Aug 26, 2020 3:33 pm

Hello,

The project is on hold again fo the moment. When I started replacing the bearings on the crankshaft I noticed
The crank is bent. It is in the machine shop to have it trued but the machinist was not sure if he could do it. I am hoping he wil get it done but
just in case he doesn't. Does someone have a K14 that is for parts only to salvage a used crank?

regards

Tim

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timbo
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Location: belgium

Re: bauer compressor

Thu Sep 10, 2020 6:09 pm

Finally the assembly has begun. I found a used crank so I started the first assembly work.
The oil carter and oil pump drive. Everything looks good. Let's hope there wil be no more setbacks.

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antique diver
Master Diver
Posts: 2039
Joined: Sun Dec 10, 2006 12:50 pm
First Name: Bill
Location: North-Central Texas

Re: bauer compressor

Thu Sep 10, 2020 6:24 pm

Tim, I know this has been a long and challenging project, and glad to see it is still progressing. Most people would have given up two years ago when the piston and cylinder sleeve assembly was so hard to find, or last month when the original crankshaft was found to be bent. Amazing that you found another one for that old model K14. Glad you are still making progress on it. :D
The older I get the better I was.

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timbo
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Posts: 29
Joined: Fri Apr 02, 2010 1:56 pm
First Name: tim
Location: belgium

Re: bauer compressor

Thu Sep 10, 2020 6:49 pm

Thanks for the encouraging words Bill. It ha been a challange but I am a stubborn person :D :D .
The crank I found is not exactly the same but normaly I can modify it on the lathe.
I posted the pistons and piston rings today to a piston ring factory. They wil make new piston rings for me.
Good quality and a lot cheaper than the bauer ones. I hope to get it running spring next year.

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TeamDoug2015
Lung Diver
Posts: 69
Joined: Mon Nov 02, 2015 10:25 pm
First Name: Doug
Location: Singapore

Re: bauer compressor

Sun Sep 13, 2020 5:32 am

Bravo! - Your patience and endurance are an inspiration as I begin my much simpler PE 250 TE rebuild. Thanks for sharing. I'm eager for my tools to arrive so I can move onto the next step.

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