Water pump bolts - 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 > Water pump bolts

8.8 Swap Kit w/ TRUSS for Jeeps~Artec JK 1 TON SWAP~JEEP Gear Change Packages From ROCKRIDGE 4WD. We Are DIFF

Reply
Unread 10-23-2013, 10:41 PM   #1
bck4more
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: springfield,Mo, Mo
Posts: 225
Water pump bolts

Ok guys I really really need to know what size the water pump bolts are on the 4.2. Somewhere some how I've lost them during my rebuild. Thanks a ton

bck4more is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 08:57 AM   #2
bck4more
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: springfield,Mo, Mo
Posts: 225
bump
bck4more is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 09:12 AM   #3
jbolty
Moderator
 
jbolty's Avatar
1990 YJ Wrangler 
 
Join Date: Jun 2007
Location: San Diego, CA
Posts: 15,863
They look like about 5/16 to me
waterpump.jpg  
__________________
.
"The right to be heard does not necessarily include the right to be taken seriously." —Hubert Humphrey
.
If you live within wheeling distance of San Diego county, click here
jbolty is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 09:49 AM   #4
bck4more
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: springfield,Mo, Mo
Posts: 225
I need to know what the lengths are because if i remember right there is 2 different sizes. Ive been googling my butt off and i just cant find them
bck4more is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 10:04 AM   #5
bpounds
Senior Member
 
bpounds's Avatar
1988 YJ Wrangler 
 
Join Date: Jun 2013
Location: Whittier, CA
Posts: 992
Shoot, I just bought some a couple of weeks ago, but I can't remember the lengths. I know they were SAE, not metric, and I agree 5/16-18. And yes, there are two lengths. In fact, my old pump used different combination of lengths than my replacement pump. So even if I remembered the lengths, it might not work right for you.

Can't you just measure the pump housing?

Don't lose your fan mounting studs. Those will be impossible to find around town. The bolts will be easy to find.
__________________
Bill
Dodge did not build my Jeep.
1988 Wrangler,4.2L I-6, Howell EFI JP-1, 5 Speed Peugeot, Zone 2.5" lift + 1/2" booms, BFG 31 x 10.5, Bestop.
bpounds is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 11:17 AM   #6
bck4more
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: springfield,Mo, Mo
Posts: 225
Yeah i guess i can measure them i wonder how far they should go into the block
bck4more is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 11:29 AM   #7
bpounds
Senior Member
 
bpounds's Avatar
1988 YJ Wrangler 
 
Join Date: Jun 2013
Location: Whittier, CA
Posts: 992
Quote:
Originally Posted by bck4more View Post
Yeah i guess i can measure them i wonder how far they should go into the block
You want a minimum thread engagement which is equal to the major diameter of the bolt. That's an SOP in industry. And you will be safe up to 1/2" of engagement. More than that and you might run out of threads in the block.
__________________
Bill
Dodge did not build my Jeep.
1988 Wrangler,4.2L I-6, Howell EFI JP-1, 5 Speed Peugeot, Zone 2.5" lift + 1/2" booms, BFG 31 x 10.5, Bestop.
bpounds is offline   Reply With Quote Quick reply to this message
Unread 10-24-2013, 11:56 AM   #8
bck4more
Registered User
1987 YJ Wrangler 
 
Join Date: May 2010
Location: springfield,Mo, Mo
Posts: 225
Alright thanks for the help guys
bck4more 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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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.