Can a loose vacuum advance diaphram assembly cause stalling issues? - Defender Source
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  #1  
Old June 10th, 2010, 08:07 PM
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Can a loose vacuum advance diaphram assembly cause stalling issues?

I started to get this weird periodic stall which would then be fine only a few minutes later. So during the routine inspection today I noticed the vacuum advance assembly (the part that has 2 screws that go into the body) was loose and there was significant play up and down. I'm about to go outside and tighten it up but could that cause power loss as well as the stalling? Any help is appreciated thanks.

Neil
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  #2  
Old June 11th, 2010, 12:01 AM
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barry f
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MAF. I think the vacuum advance can cause issues but most people drive with them having a split diaphram
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Old June 11th, 2010, 08:27 AM
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Charles Galpin
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Check for holes/tears in the tube runnning from the MAF to the plenum as well.
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Old June 11th, 2010, 09:25 AM
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Barry, there is a very clean 95 RRC on the sale section .
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Old June 11th, 2010, 01:59 PM
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Random periodic stalling with a return to operating shortly thereafter is likely to be the ignition amplifier. When it quits, quick (like a bunny) jump out and check for presence/absence of spark. If spark absent, it's probably the amp. I have them in stock, AllMakes brand, one year warranty, $69.95, IIRC plus USPS shipping.

One of the very few times I had to have my Disco towed was due to the vacuum advance can unscrewing from the distributor body.
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Old June 14th, 2010, 03:51 PM
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Hey PT are those brand new ignition amps? Do you have a phone number so I can credit card order? Thanks for the help everyone, I had a dirty stepper motor (not sure if that was contributing) and after I tightened that vacum advance on the distributor the stalling went away, weird.
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