97 jetta header Q?

odie0153 · #1 (**permalink**) 04-05-2006, 05:00 PM

Ok I'm asking for my lil. Bro. but here it is he has a 97 jetta treck 2.0l. Ok the story stars like this he out an obx header. Went to put it on, pulled off the old one, put new gaskets on and bolted the obx on. He fired it up and it leaked well we thought it was a gasket that did not seat good. So we pulled it off and then seen the little holes buy the exhaust ports and that’s where it was leaking from. On the old one it had a bar under the header that went to a tube and in to what I think is an egr system so I guess he got the wrong header or is there some trick that I don’t know about? Thanks

VDubbinGT · #2 (**permalink**) 04-05-2006, 05:48 PM

Maybe your O2 sensor holes, not sure thought by your description.

odie0153 · #3 (**permalink**) 04-06-2006, 05:11 PM

No it’s on the head you got he main port and there is a small hole right under it on all 4 some one said it might be a calf. Emissions head if there is some thing like that

VDubbinGT · #4 (**permalink**) 04-06-2006, 05:49 PM

hmmm not sure man.

VWjetta97 · #5 (**permalink**) 04-07-2006, 01:05 PM

would have to see a pick maybe?

PrimaVW · #6 (**permalink**) 04-07-2006, 01:12 PM

quite possible its for the egr, but i thought that came out the side of the exhaust mani?

cracker21 · #7 (**permalink**) 04-07-2006, 02:58 PM

the O2 sensor can go in either of the two holes , one comes with a bolt in it as they expect you to use the lower hole for the pre cat O2 sensor. the threaded part above the top O2 hole is for the heat shield thing that feeds warm air to the airbox when you start up on cold days.

there is no provision for the EGR because it's detrimental to performance and not needed . its just an emissions thing

cracker21 · #8 (**permalink**) 04-07-2006, 02:59 PM

just checking but did your brother have the other flange welded to his cat ?

odie0153 · #9 (**permalink**) 04-10-2006, 06:25 AM

well i got some pic's but dont know how to post them

if you can help me out there i can show you what i'm talking about

cracker21 · #10 (**permalink**) 04-10-2006, 12:03 PM

open a www.photobucket.com account then add the pics to there. then copy the IMG tag to your post . easy as that

odie0153 · #11 (**permalink**) 04-10-2006, 04:21 PM

ok thanks well here is the one of the head

and here is the one of the stock manafold

and here is the one of the obx header

so that little hole is where it was leaking I have never seen anything like it before well there it is see if that seems odd to you or it could be normal thing

cracker21 · #12 (**permalink**) 04-10-2006, 09:16 PM

hmmm my cylinder head didn't have that , i'd try making a gasket to cover that or maybe get someone to weld up the hole ? sorry i don't really know how to help as i never had to deal with that.

odie0153 · #13 (**permalink**) 04-11-2006, 05:23 AM

yeah well that what i thought ha ha ha leave it to my little bro to get the weard jetta 2.0l :P

Handeye · #14 (**permalink**) 04-11-2006, 12:59 PM

That's gotta be for the EGR valve, but I've never seen one on a 2.0. Do you have a full pic of the original manifold?

Looking at the pic of the head; I would say that it channels right into the exhaust port anyway right? If so, I'd drill, tap and plug that that hole with a set screw.

odie0153 · #15 (**permalink**) 04-11-2006, 03:20 PM

ok yeah here it the stock one