Engine - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Engine

KrawlOff-Road.com Sale EventFS: Jeep Fog Light LED Bulbs! Several Brightness Options! *STOP UNWANTED LIGHT BAR NOISE* with Pandemic LED Light Ba

Reply
Unread 09-07-2015, 06:32 PM   #1
casper32
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2015
Posts: 43
Engine

How do I know if my 6 cyl is a 4.0? Is there 2 sizes of 6'S? My jeep was a 4 and the prevous owner put in a 6. I need a exhaust manifold.

casper32 is offline   Reply With Quote Quick reply to this message
Unread 09-07-2015, 07:05 PM   #2
TSEJEEPERS
Web Wheeler
 
TSEJEEPERS's Avatar
1993 YJ Wrangler 
 
Join Date: Dec 2003
Location: Morton IL
Posts: 5,371
Give us a picture of the engine.
Who knows what the PO swapped in.
__________________
93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
TSEJEEPERS is offline   Reply With Quote Quick reply to this message
Unread 09-07-2015, 07:37 PM   #3
Drednot
Web Wheeler
 
Drednot's Avatar
1991 YJ Wrangler 
 
Join Date: Aug 2005
Location: phoenix, az
Posts: 3,002
Count the number of valve cover bolts. 15=4.0L Less=4.2L head


And,Is the oil pressure port close to the bell housing(4.2L)? Or coming off the distributor boss(4.0L)?
__________________
91 YJ Sahara, 4.0L, AX-15/NP231, D30/D35
12 Cherokee 4x4,3.7L,
"Non Vi Sed, Arte"
Drednot is offline   Reply With Quote Quick reply to this message
Unread 09-07-2015, 08:13 PM   #4
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 18,090
The 4.2 has a gas pump in front of the distributor, the 4.0 has a blank space and a pump in the gas tank.
__________________
Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is offline   Reply With Quote Quick reply to this message
Unread 09-07-2015, 08:22 PM   #5
casper32
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2015
Posts: 43
Engine

Thanks Drednot, I have a 4.0


Thanks Mike, Pumps in the tank

Last edited by casper32; 09-07-2015 at 09:11 PM..
casper32 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.