What is this pump?

CrashCourse

Active Forum User
Hey all,
Under the driver's front wing of my '87 Z31 Turbo is a pump/motor of some description, all of sudden this has started chuntering away noisily.

What the blazes is it for?

Hope someone can enlighten me - please :confused:

Thanks - Andy
 

Mr.F

Inactive
The pump supplements vacuum in the many lines that control functions on the Z31 (particularly heater control). If it is running more frequently this might be due to loss of vacuum via displaced or perished hose. First one to check is the vacuum supply to the heater cock at RH rear of engine bay.
 

CrashCourse

Active Forum User
Thanks for that information Mike, I'll have a good look and see if I can find the leak - probably a pipe somewhere that I've dislodged.
 
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