SSI heat exchanger warning |
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SSI heat exchanger warning |
914ltd |
Oct 6 2011, 06:34 AM
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#1
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Member Group: Members Posts: 239 Joined: 18-April 03 From: Peoria, IL Member No.: 581 Region Association: None |
I posted this last year, heating season is here again. These are big cracks, a tiny one you would not be able to hear would still be dangerous. These are not accident damaged. If you have a set on your car, grab the carbon monoxide detector from home and take a ride with the heat on and windows rolled up. There is a detector used in small aircraft also available. The last photo is how we now test for leaks using air pressure. Brad
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Katmanken |
Sep 25 2015, 09:36 PM
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#2
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Don't think so. A metalurgist for GE aircraft engines always warned me that my 914 SSI exchanger pipes would rust. He said it was due to the type of stainless tubing used.
He advised using a magnet on the tubing and the air shrouds. One was magnetic and the other was not, This was a guy used to casting turbine blades as a singe crystal and with air passages within. Never run my SSI's so still shiney. |
bretth |
Sep 26 2015, 06:36 AM
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#3
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Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
So are you saying that if it is not magnetic it is less likely to fracture? I used to work GRC years ago not with metals though. I believe 304 and up are non ferris.
Brett Don't think so. A metalurgist for GE aircraft engines always warned me that my 914 SSI exchanger pipes would rust. He said it was due to the type of stainless tubing used. He advised using a magnet on the tubing and the air shrouds. One was magnetic and the other was not, This was a guy used to casting turbine blades as a singe crystal and with air passages within. Never run my SSI's so still shiney. |
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