View Single Post
  #79  
Old 11-26-2011, 11:46 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 19,239
Mein Auto: 02 BMW 525i M54 automatic
Thanks to added value by Bomb5 today in this thread:
- M54 vacuum tubing ... what diameter ... what brand ... what material ... what length?

... we, for the first time (that I know of), have an in-situ picture of the three M54 engine vacuum endcaps that are listed in the parts list but (frustratingly) are not shown in the diagrams!

Quote:
Originally Posted by bluebee View Post
Based on what we found in post #20 here, out of the two, three, or four endcaps reputed to be in the E39, here's the best I can do so far without additional help:
  • This diagram loosely intimates there is one capped vacuum port:
  • This diagram outright says there are three capped vacuum ports:
    • Engine => Intake manifold => Intake manifold system
    • #15, Cap, D=3,5MM, Qty=2, 11611437560, $3.39 (between 1/8" & 9/64" ID)
      • One of these is probably for the CCV valve vacuum port on the M54
      • The other 'may' be if the M54 does not have an air pump, then it would cap off that vacuum port in the back of the engine where #7 hose would go in the "Air pump F Vacuum Control" diagram.
    • #17, Cap, D=7,0MM, Qty=1, 11611727176, $3.39 (between 17/64" & 19/32")
      • This clearly is the rear vacuum port behind the sucking jet pump on my M54
Quote:
Originally Posted by Bomb5 View Post
I believe that I found the 3 end caps ... See the attachment.


EDIT: Steve530 added additional pictures showing the SAP electrical valve taking one of the hoses that appear to be capped above:
Attached Thumbnails
Click image for larger version

Name:	bmw_m54_engine_sap_vacuum_tube_and_endcaps.jpg
Views:	5477
Size:	77.7 KB
ID:	302677  

Last edited by bluebee; 11-27-2011 at 07:51 AM. Reason: Added additional pictures showing endcap locations on the M54 engine
Reply With Quote