Or a cracked or broken valve plate. It will leak internally and never build pressure. High side and low side will have zero, or very little pressure difference. Of course you don't know until you start troubleshooting.
Rick From: mercedes@okiebenz.com Sent: July 26, 2022 1:40 PM To: mercedes@okiebenz.com Reply-to: mercedes@okiebenz.com Cc: ka...@striplin.net Subject: Re: [MBZ] The GL AC So with these compressors it could be the swash plate getting stuck, or solenoid going bad. Sent from my iPhone > On Jul 26, 2022, at 1:33 PM, dan penoff.com<http://penoff.com> via Mercedes > <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: > > I’ve worked with and am familiar with variable displacement pumps like this, > I was just curious to see how they controlled the swash plate and how it > interfaced with the pistons. Pretty slick. > > -D > >> On Jul 26, 2022, at 12:49 PM, Bob Rentfro via Mercedes >> <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: >> >> We utilize that pump technology in the turbine control oil system at the old >> nuke plant. >> Awesome video. If I were still trying to teach the little nubbins the >> concepts of the technology, I would likely used diagnoses Dan’s video. >> >> AZBob >> >> Sent from my iPhone >> >>>> On Jul 26, 2022, at 7:03 AM, dan penoff.com<http://penoff.com> via >>>> Mercedes <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: >>> >>> That was great, thanks for linking to this! I understood the concept of >>> the variable displacement compressor and swash plate, but wasn’t clear on >>> how it was controlled. Good to know. >>> >>> -D >>> >>>> On Jul 26, 2022, at 3:27 AM, Rick Knoble via Mercedes >>>> <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: >>>> >>>> Here's a video I found that gives a very good explanation of how the >>>> variable displacement compressor works. It's not a Benz, but the idea is >>>> the same. Either the solenoid valve isn't working, or the valve plate has >>>> failed with a crack or something. >>>> >>>> https://youtu.be/xwIOL7ghrnI >>>> >>>> Rick >>>> ________________________________ >>>> From: Mercedes >>>> <mercedes-boun...@okiebenz.com<mailto:mercedes-boun...@okiebenz.com>> on >>>> behalf of Kaleb Striplin via Mercedes >>>> <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> >>>> Sent: Monday, July 25, 2022 7:18:36 PM >>>> To: Mercedes Discussion List >>>> <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> >>>> Cc: Kaleb Striplin <ka...@striplin.net<mailto:ka...@striplin.net>> >>>> Subject: Re: [MBZ] The GL AC >>>> >>>> True. Well the damn thing has not blown any cold air in 2 hours. I think >>>> tomorrow I’m going to recover the refrigerant just to see if it’s leaked >>>> any since I recharged it. Maybe it’s got a small leak or something. >>>> >>>> Sent from my iPhone >>>> >>>>>> On Jul 25, 2022, at 7:02 PM, Floyd Thursby via Mercedes >>>>>> <mercedes@okiebenz.com<mailto:mercedes@okiebenz.com>> wrote: >>>>> >>>>> More fuel efficient I am sure. They can save .01% fuel by going to a >>>>> more expensive and complex system that will cost 8X as much in the long >>>>> run but you save $3.92 a year in fuel and the EPA and EUCommies are happy >>>>> you are not killing the planet as fast even though the life-cycle >>>>> environmental costs of the new part is much worse than the old type. >>>>> Progress! >>>>> >>>>> -_FT >>>>> >>>>>> On 7/25/22 7:39 PM, Kaleb Striplin via Mercedes wrote: >>>>>> Yes exactly. I don’t really understand why they had to make it more >>>>>> complicated. >>>>>> >>>>>> Sent from my iPhone >>>>>> >>>>>>>> On Jul 25, 2022, at 6:37 PM, Jim >>>>>>>> Cathey<jim.cathey...@gmail.com<mailto:jim.cathey...@gmail.com>> wrote: >>>>>>> >>>>>>> So, we change from a simple, easily diagnosed system with its most >>>>>>> failure-prone part being an external, non-pressurized bolt-on to one >>>>>>> with all of that internal, difficult to diagnose, and expensive to >>>>>>> replace. >>>>>>> >>>>>>> Progress! >>>>>>> >>>>>>> The wretched X5 has that system, and of course it failed and needed >>>>>>> a new (rebuilt) compressor, with all the trimmings. >>>>>>> >>>>>>> -- Jim >>>>>>> >>>>>> >>>>>> _______________________________________ >>>>>> http://www.okiebenz.com >>>>>> >>>>>> To search list archiveshttp://www.okiebenz.com/archive/ >>>>>> >>>>>> To Unsubscribe or change delivery options go to: >>>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>>>> >>>>> -- >>>>> --FT >>>>> _______________________________________ >>>>> http://www.okiebenz.com >>>>> >>>>> To search list archives http://www.okiebenz.com/archive/ >>>>> >>>>> To Unsubscribe or change delivery options go to: >>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>>> >>>> >>>> >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>> >>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
