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<p class="MsoNormal">In the automotive courses I took, we would use an unlit propane torch and direct the gas flow over spark ignited engine areas of possible vacuum leaks. If the engine speed increased, you had found the leak.<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> AT <at-bounces@lists.antique-tractor.com> <b>On Behalf Of
</b>Stephen Offiler<br>
<b>Sent:</b> Sunday, October 27, 2019 3:53 PM<br>
<b>To:</b> Antique Tractor Email Discussion Group <at@lists.antique-tractor.com><br>
<b>Subject:</b> Re: [AT] 3 cyl diesel problems<o:p></o:p></p>
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<p class="MsoNormal">Anybody use propane/MAPP? Unlit torch pointing into the air box. I use it on reluctant gasoline engines with a fair amount of success, but not so sure about diesel. Since we're talking about gas-soaked rags or gas-soaked air filters
on diesel engines, seems like a similar approach. <o:p></o:p></p>
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<p class="MsoNormal">.<o:p></o:p></p>
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