 Heat and BANG, How did that happen?!?!?!?!?!?! |
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| ctc911ctc |
 May 20 2022, 02:35 PM
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#1
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Senior Member  Group: Members Posts: 1,329 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States 
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'74 914, all stock, near all original, 22k
As we all know getting the brake hose disconnected from the hard line can be a pistol on older cars, Heat always works, while doing the front end of the 914 (shocks and bushings) I am replacing the hoses - of course\ I needed to heat and started to torch (IMG:style_emoticons/default/blowtorch.gif) this connector when BANG! Turns out there was a very tight fit between the hose and connector, enough to hold pressure to an explosion point. Who Knew!?! Fortunately, I was wearing goggles. No, there were no blocks within the hose, this was not from what was IN the hose but between the hose and the connector.  |
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| 914_teener |
May 21 2022, 02:35 PM
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#2
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914 Guru Group: Members Posts: 5,270 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Never ever heat any part of a shock absorber
The brake lines are sealed like the shock absorbers. When you heated them the air inside exapanded with the obvious result and broke at the weakest area. Same reasoning for any ensclosed assembly using heat with a combustable gas....not a good idea. I used a pair of side cutters for the flexible lines and then dealt with the connection to the hard lines after with penetrant oil. Glad you weren't hurt. |
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| Tdskip |
May 22 2022, 06:15 AM
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#3
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Advanced Member Group: Members Posts: 3,775 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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QUOTE(914_teener @ May 21 2022, 03:35 PM)  Never ever heat any part of a shock absorber The brake lines are sealed like the shock absorbers. When you heated them the air inside exapanded with the obvious result and broke at the weakest area. Same reasoning for any ensclosed assembly using heat with a combustable gas....not a good idea. I used a pair of side cutters for the flexible lines and then dealt with the connection to the hard lines after with penetrant oil. Glad you weren't hurt. Same here, cut the line right at the metal end then use a large socket after giving penetrating oil a chance to work. |
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Posts in this topic
ctc911ctc Heat and BANG May 20 2022, 02:35 PM
Van B My rubber brake lines are self lubricating so I do... May 20 2022, 02:43 PM
GregAmy A line filled with clean brake fluid should not ha... May 22 2022, 07:03 AM blabla914 you should probably also check the adjustment of t... May 22 2022, 02:19 PM ctc911ctc **********Perhaps I was NOT clear.*********
The L... May 23 2022, 06:51 AM 914_teener Most brake fluids are flammable given enough heat.... May 23 2022, 08:31 AM
Shivers "This means it will easily burn compared to s... May 23 2022, 10:30 AM |
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