Vacuum Pump on Z4 35i

bmwmick · 06-06-2011, 09:04 PM

Does anyone know for sure what type of vacuum pump is installed on our
twin turbo N54B30 engines? Vane or Scroll?
My Dodge Cummins Diesel has one but this is to be expected on a diesel
with no throttle plate.

HerrK · 06-06-2011, 10:08 PM

Only a guess but based on the picture from Real OEM diagrams it looks like a vane type pump since the drive shaft is offset from the housing.

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bmwmick · 06-06-2011, 10:45 PM

Yep,
I believe you are correct, there isn't enough length
for a scroll type pump.
It also appears it is driven by the same chain that drives the oil pump. This engine resembles a diesel in lots of ways.

thanks,

06-06-2011, 09:04 PM	#1
bmwmick Second Lieutenant 18 Rep 237 Posts Drives: '97 Z3,'11 Z4 35i,'90 C4 Vette Join Date: May 2011 Location: AZ/CA iTrader: (1)	Vacuum Pump on Z4 35i Does anyone know for sure what type of vacuum pump is installed on our twin turbo N54B30 engines? Vane or Scroll? My Dodge Cummins Diesel has one but this is to be expected on a diesel with no throttle plate. __________________ Mick 2011 35i 6-speed, ///M Sport, Deep Sea Blue, Black leather, Carbon trim, Cold Weather package, Premium package, 6CD changer. Delivered 7/15/11. Michelin Pilot SuperSport tires 10/24/12 Tucson,AZ/Santa Paula,CA
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06-06-2011, 10:08 PM	#2
HerrK Captain 42 Rep 640 Posts Drives: 21 X5 40i, 77 R100Rs Join Date: Dec 2009 Location: AZ iTrader: (0)	Only a guess but based on the picture from Real OEM diagrams it looks like a vane type pump since the drive shaft is offset from the housing. Sponsored links Sponsored links __________________ HerrK - 2021 X5 40i M Sport l PCD l Atlantis Blue/Ext'd Tartufo Merino l M Sport w/blue Calipers l Matt Popular l HK Sound l 740's l Exec & Drive Pro Pack Sold w/Great Memories - E89 Z4 l ED 2010 l 2011 35i l Crimson/Ext'd Coral Red w/Alum l 6 sp MT l Prem Sound l Sport Pack l 296's
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06-06-2011, 10:45 PM	#3
bmwmick Second Lieutenant 18 Rep 237 Posts Drives: '97 Z3,'11 Z4 35i,'90 C4 Vette Join Date: May 2011 Location: AZ/CA iTrader: (1)	Yep, I believe you are correct, there isn't enough length for a scroll type pump. It also appears it is driven by the same chain that drives the oil pump. This engine resembles a diesel in lots of ways. thanks, __________________ Mick 2011 35i 6-speed, ///M Sport, Deep Sea Blue, Black leather, Carbon trim, Cold Weather package, Premium package, 6CD changer. Delivered 7/15/11. Michelin Pilot SuperSport tires 10/24/12 Tucson,AZ/Santa Paula,CA
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