The largest and best supported Jaguar cars enthusiast site on the Internet!


Serving Enthusiasts since 1993
The Jag-lovers Web

Currently with 3,166 members





GM Air Pump

Jaguar V12

Air Injection Pump

(GM)

The air pump used on the emission-controlled Jaguar V12 is a GM part.

John Himes had an air pump seize up on him, so he dissected the damaged unit and provided some pictures.  "Pump with rear removed. Notice that the shaft is not centered."

"The back plate straight on."

"Close-up of shaft.  Notice gouge track."

"Shot of inside showing 1 of 2 blades retracted on the output side."

"Shot of inside showing the other blade on the input side."

"Top view with back removed.  Air comes in from the top left side, it is then swept around & out the top right side & then into the exhaust."

"Left to right, pulley, plastic vented air disc, air pump. The air goes in through the opening in the top of the pump in this picture."

"Looking inside you can see what the scraping blades attach to.  The top one is shaped like a U & the other one fits inside this U."

There followed a brief discussion on whether such a pump could be disassembled and reassembled leaving out a few choice parts, so that it ends up looking like an air pump but functioning as an idler pulley.  Himes reported that it may be possible, but not with this unit because the bearing that failed and chewed up the innards was one of the bearings that needs to stay!  What needs to come out is the two blades; then the rotating drum can be reinstalled to spin without doing anything.  Himes provided a few more photos:

"Showing the 2 blades broke apart (only way I could get them out).  The 4 smaller metal pieces attach to the blades & ride on the shaft."

"The cylinder in the pump is hollow with the 2 blade assemblies removed."


 

Please help support the move to the new site, and DONATE what you can.
A big Thank You to those who have donated already!

 


       
       
       
       

Go to our Homepage
Improve your Jag-lovers experience with the Mozilla FireFox Browser!

  View the latest posts from our Forums via an RSS Feed!

Jag-loversTM Ltd / JagWEBTM 1993 - 2017
All rights reserved. Jag-lovers is supported by JagWEBTM
For Terms of Use and General Rules see our Disclaimer
Use of the Jag-lovers logo or trademark name on sites other than Jag-lovers itself in a manner implying endorsement of commercial activities whatsoever is prohibited. Sections of this Web Site may publish members and visitors comments, opinion and photographs/images - Jag-lovers Ltd does not assume or have any responsibility or any liability for members comments or opinions, nor does it claim ownership or copyright of any material that belongs to the original poster including images. The word 'Jaguar' and the leaping cat device, whether used separately or in combination, are registered trademarks and are the property of Jaguar Cars, England. Some images may also be Jaguar Cars. Mirroring or downloading of this site or the publication of material or any extracts therefrom in original or altered form from these pages onto other sites (including reproduction by any other Jaguar enthusiast sites) without express permission violates Jag-lovers Ltd copyright and is prohibited
Go to our Homepage
Your Browser is: CCBot/2.0 (http://commoncrawl.org/faq/), IP Address logged as 54.81.73.2 on 21st Oct 2017 14:05:44