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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: Tikvah on December 22, 2015, 10:58:26 AM

Title: Jake Brake Buffer Switch
Post by: Tikvah on December 22, 2015, 10:58:26 AM
The switch in the photo is only for the jake Brake but does not have high idle control.  I have to replace the switch anyway because it's bad.

What is the switch called? 
What is the switch with the high idle and jake buffer in one called?
Where can I find one?
Anyone have one laying around?

Dave

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fi1239.photobucket.com%2Falbums%2Fff504%2Ftikvahmarketing%2Fimage.jpeg&hash=b2822daa36ed906dec5a880c53de9ed0f52f6a4b)
Title: Re: Jake Brake Buffer Switch
Post by: luvrbus on December 22, 2015, 11:30:36 AM
The one shown is a obsolete #144351 the new part # is 01-022351,the combo fast idle and buffer switches are close to 800 bucks new fwiw the micro switches are around $400 ea you should get the electronic type replacement for what you have for $200 
Title: Re: Jake Brake Buffer Switch
Post by: Tikvah on December 22, 2015, 01:17:54 PM
What do you think?

http://www.ebay.com/itm/Jacobs-Jake-Freno-parte-Buffer-interruptor-01-022351-Detroit-Diesel-1022351-014435-/171959906970?_ul=BO&nma=true&si=fPcXX1WynTBo%252Bq72dacejjydCjA%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557 (http://www.ebay.com/itm/Jacobs-Jake-Freno-parte-Buffer-interruptor-01-022351-Detroit-Diesel-1022351-014435-/171959906970?_ul=BO&nma=true&si=fPcXX1WynTBo%252Bq72dacejjydCjA%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557)
Title: Re:
Post by: thomasinnv on December 22, 2015, 01:36:07 PM
FWIW Mohawk had the fast idle buffer switch for under 200 a few weeks ago, don't remember the part number i used to find it though. I'm sure it's some kind of aftermarket setup that's been superceded at least a half dozen times.
Title: Re:
Post by: thomasinnv on December 22, 2015, 02:10:40 PM
The parts manual for my MC8 shows the complete fast idle buffer switch assembly (air cylinder and switch complete) as part number 8F-32-12. Mohawk shows that part number as cylinder assembly for  $83.15. I wonder if they have the decimal in the wrong place. If they really have the right part for that price I just might buy a dozen or so lol.
Title: Re: Jake Brake Buffer Switch
Post by: luvrbus on December 22, 2015, 02:29:46 PM
83 bucks is not a bad price on just the fast idle cylinder DD is over $300.00 and the aftermarket junk is around $200.00
Title: Re:
Post by: thomasinnv on December 22, 2015, 02:34:06 PM
Yeah you figured it right clifford. I searched the GM number that it crossed to and it is just the fast idle cylinder. So is the MCI number 8F-32-12 incorrect for the fast idle buffer switch? My book shows that number in 3 places.