Exhaust header anyone?
#1
Member
Thread Starter
Join Date: Jan 2010
Location: Austintown, OH
Posts: 150
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Exhaust header anyone?
I am in the process of getting the 99+ intake mani, bored TB, intake, and neon injectors.
My exhaust is starting to form hair line cracks and i'm looking to get a replacement.
Has anyone bought this one before? It may be cheap but comes with a 1 year warrenty.
http://cgi.ebay.com/ebaymotors/1998-98-Jeep-Grand-Cherokee-4-0L-Exhaust-Manifold-NEW_W0QQcmdZViewItemQQhashZitem3efe22ab15QQitemZ27 0551657237QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAcce ssories
My exhaust is starting to form hair line cracks and i'm looking to get a replacement.
Has anyone bought this one before? It may be cheap but comes with a 1 year warrenty.
http://cgi.ebay.com/ebaymotors/1998-98-Jeep-Grand-Cherokee-4-0L-Exhaust-Manifold-NEW_W0QQcmdZViewItemQQhashZitem3efe22ab15QQitemZ27 0551657237QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAcce ssories
#2
CF Veteran
Join Date: Nov 2009
Location: New Jersey
Posts: 1,261
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO
I would just go with the APN header from ineedparts.com considering it has a lifetime warranty. If it ever cracks, you get a new one for free. It happened to forum member FrankZ and they sent him a new one. Here's the link http://www.ineedparts.com/index.php?...roduct_id=1690 . If you're using the APN header with a 99 intake manifold, you'll need to do a little fabrication. Cylinder 6 intersects on the manifolds and makes it so it doesn't seat properly. It causes a vacuum leak and makes it idle extremely high. To fix it, you need to grind a little off the intake manifold and dent in the cylinder 6 exhaust tube a little. One guy on here heated it first with a propane torch to make it soft and just gave it one little tap with a hammer to bend it in and he said it worked great. Good luck with whatever you choose to do.
#3
Member
Thread Starter
Join Date: Jan 2010
Location: Austintown, OH
Posts: 150
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Looks like they have a better design for a cheaper price too.
http://www.ineedparts.com/index.php?...oduct_id=15343
http://www.ineedparts.com/index.php?...oduct_id=15343
#5
Member
Thread Starter
Join Date: Jan 2010
Location: Austintown, OH
Posts: 150
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
#6
CF Veteran
Join Date: Jan 2010
Location: Forest, VA
Posts: 3,379
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 I6
fit it, check it, take it off and regrind it. when you put it on, put your hand to where you feel contact, and you'll see where you need to shave. USE A COARSE FILE. very coarse. wait till tomorrow and i'll try to take some pics.
Trending Topics
#10
CF Veteran
Join Date: Jan 2010
Location: Forest, VA
Posts: 3,379
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 I6
keep checking the thickness of the runner with one finger in the manifold and other on the grind spot. you don't wanna ruin a perfectly good manifold by grinding a hole on it. if it does happen, don't get creative, PM me and i'll help you fix it.
#11
CF Veteran
Join Date: Nov 2009
Location: New Jersey
Posts: 1,261
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Looks like they have a better design for a cheaper price too.
http://www.ineedparts.com/index.php?...oduct_id=15343
http://www.ineedparts.com/index.php?...oduct_id=15343
#12
Member
Thread Starter
Join Date: Jan 2010
Location: Austintown, OH
Posts: 150
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Cool beans. I believe that i'll be adding it to the list. Considering getting it jet hot coated. I'm not a huge fan of bare metal headers or exhaust manifolds. My exhaust mani in my mazda is coated and i'm so thankful it came that way.
#13
CF Veteran
Join Date: Jan 2010
Location: Forest, VA
Posts: 3,379
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 I6
if you increase the thickness of the header, it will not seal right. intake and exhaust manifolds get bolted down with the same fasteners. if thicknesses are different the washer will not apply equal pressure to both of them. you will already have to turn the washers upside down. you'll know what i'm talking about when you get there.
#14
Member
Thread Starter
Join Date: Jan 2010
Location: Austintown, OH
Posts: 150
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
I see. I don't think that the coating would be too much of a differnce. It would be the same as running a header with a slightly thicker flange. I have read the edelbrock header has an extremely thick flange.
#15
CF Veteran
Join Date: Jan 2010
Location: Forest, VA
Posts: 3,379
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 I6
it will probably be fine. keep us posted with your progress. i did a whole writeup of how to change the headers. look for a post named "one nasty manifold".
Thread
Thread Starter
Forum
Replies
Last Post
jmsummers2012
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
53
04-30-2021 02:35 PM
MightyMouse8
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
10-08-2015 08:57 AM
Crimmy
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
10-01-2015 06:43 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)