Differences between cams - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Differences between cams by ObscuredByClouds on 24 Nov, 2008 11:33
• Whats the difference between the all the diesel cams? NA vs TD they're the same, yes?
  
  Also, how do you tell the difference between a hydro cam and a mechanical lifter cam?
• #1 by boosted_diesel_84 on 24 Nov, 2008 14:41
• N/A and TD cams are the same,
  
  you can tell difference between solid and hydro, by the solid having 1 more cam cap, thus 1 more journal on the cam, also if you have both in front of you, you can deffenitly tell a difference in lobe size. hope this helps
• #2 by gigaz2 on 25 Nov, 2008 13:34
• where is the search button??
  
  oh wait! its right there, and it works too:
  
  http://vwdiesel.net/phpBB/viewtopic.php?t=13962&highlight=cam+gasser
• #3 by cyrus #1 on 25 Nov, 2008 17:51
• Both solid and hydraulic diesel heads have 5 cam caps.  Only hydraulic gasser heads are missing # 4.  
• #4 by DCC on 26 Nov, 2008 11:28
• Quote from: "cyrus #1"

  Both solid and hydraulic diesel heads have 5 cam caps.  Only hydraulic gasser heads are missing # 4.  

  
  
  I'd say "Only mexican-made hydraulic gasser heads are missing #4".   :wink:
• #5 by MJF on 26 Nov, 2008 12:16
• Quote from: "DCC"

  Quote from: "cyrus #1"

  Both solid and hydraulic diesel heads have 5 cam caps.  Only hydraulic gasser heads are missing # 4.  

  
  
  I'd say "Only mexican-made hydraulic gasser heads are missing #4".   :wink:

  
  
  No, almost all hyraulic gassers are missing.
• #6 by Vincent Waldon on 26 Nov, 2008 15:03
• Quote from: "MJF"

  
  No, almost all hyraulic gassers are missing.

  
  
  Not to pound on this but only to be accurate, in case SEARCH leads someone here... tis true.  My 1992 last-of-the-German-Jettas gasser Jetta has no #4... really gave me pause the first time I had the lid off "oh no... I have a damaged casting."   :wink:
• #7 by boosted_diesel_84 on 26 Nov, 2008 18:43
• Quote from: "cyrus #1"

  Both solid and hydraulic diesel heads have 5 cam caps.  Only hydraulic gasser heads are missing # 4.  

  
  
  my bad, i have more experience with the gassers and assumed diesels were the same.
• #8 by DCC on 26 Nov, 2008 22:36
• Quote from: "MJF"

  No, almost all hyraulic gassers are missing.

  
  
  Well, as far as I've seen, all hydraulic GTI's I've seen had the 5 of them. Only one of them had 4, and it was a german block and a mexican head (odd mix, I know).  :?
  
  Maybe it's just the dx,pb and pg engines that have 5.
• #9 by cyrus #1 on 26 Nov, 2008 22:41
• that sounds more accurate.  I've seen PF, RV, MZ, etc and they all had 4 caps.