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Engine Specific Info and Questions => IDI Engine => Topic started by: ObscuredByClouds on November 24, 2008, 11:33:32 am

Title: Differences between cams
Post by: ObscuredByClouds on November 24, 2008, 11:33:32 am
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?
Title: Differences between cams
Post by: boosted_diesel_84 on November 24, 2008, 02:41:09 pm
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
Title: Differences between cams
Post by: gigaz2 on November 25, 2008, 01:34:52 pm
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
Title: Differences between cams
Post by: cyrus #1 on November 25, 2008, 05:51:10 pm
Both solid and hydraulic diesel heads have 5 cam caps.  Only hydraulic gasser heads are missing # 4.  :)
Title: Differences between cams
Post by: DCC on November 26, 2008, 11:28:49 am
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:
Title: Differences between cams
Post by: MJF on November 26, 2008, 12:16:43 pm
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.
Title: Differences between cams
Post by: Vincent Waldon on November 26, 2008, 03:03:13 pm
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:
Title: Differences between cams
Post by: boosted_diesel_84 on November 26, 2008, 06:43:16 pm
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.
Title: Differences between cams
Post by: DCC on November 26, 2008, 10:36:50 pm
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.
Title: Differences between cams
Post by: cyrus #1 on November 26, 2008, 10:41:26 pm
that sounds more accurate.  I've seen PF, RV, MZ, etc and they all had 4 caps.