[AT] Roane to detect vacuum leaks. 3 cyl diesel problems

[Jack]

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.

From: AT <at-bounces at lists.antique-tractor.com> On Behalf Of Stephen Offiler
Sent: Sunday, October 27, 2019 3:53 PM
To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
Subject: Re: [AT] 3 cyl diesel problems

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.

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