Air Compressor Problem

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D Winsor
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Currently located: Dartmouth

Air Compressor Problem

Postby D Winsor » Wed Feb 23, 2011 9:25 am

After a major overhaul of a Hamworthy T2F5 reciprocating 2 stage air compressor there was an issue with water in the crank case oil as well as oil being found coming out the inter-cooler drain between the LP & the HP stages.
All the valves with the exception of the LP Suction valve were covered with oil residue.
All the seals for the inter-coolers and the cylinder head was replaced and the problem still remained.
Any idea what the problem is?
Troubleshooting 101 "Don't over think it - K.I.S.S. it"

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D Winsor
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Joined: Thu Nov 22, 2007 8:23 am
Currently located: Dartmouth

Re: Air Compressor Problem

Postby D Winsor » Wed Mar 02, 2011 2:46 pm

A hint
It has something to do with the piston rings
Troubleshooting 101 "Don't over think it - K.I.S.S. it"

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JK
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Currently located: East Coast, Canada

Re: Air Compressor Problem

Postby JK » Thu Mar 03, 2011 1:42 pm

Oil ring was in upside down.

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D Winsor
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Posts: 325
Joined: Thu Nov 22, 2007 8:23 am
Currently located: Dartmouth

Re: Air Compressor Problem

Postby D Winsor » Sat Mar 05, 2011 5:40 am

Close, The compressor was opened again and the cylinders were found to be highly polished almost to a mirror finish. After honing the liners and the compressor was reassembled the rings were able to seat in properly and the problem disappeared
Troubleshooting 101 "Don't over think it - K.I.S.S. it"

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JK
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Posts: 2676
Joined: Tue Sep 04, 2007 2:29 am
Currently located: East Coast, Canada

Re: Air Compressor Problem

Postby JK » Sat Mar 05, 2011 7:37 am

Excellent post. Thank you for taking the time.

I never realized how shy marine engineers were of posting opinions and experiences until we started doing these type posts.
The number of people that read and will not post their experiences for the fellows just starting out is amazing. :evil:


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