Go Back   Jaguar Forums - Jaguar Enthusiasts Forum > Jaguar Models ( Classics ) > XJ40
Sign in using an external account
Register Forgot Password?
Search

XJ40 1986 - 1994

Welcome to Jaguar Forums!
Welcome to JaguarForums.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Jaguar Forums community today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-26-2011, 12:04 PM
Junior Member
 
Join Date: Mar 2011
Location: Sweden
Posts: 23
Thanked 0 Times in 0 Posts
Default Jaguar XJ40 4.0 Head bolts torque specs.

Hello! I changed my head gasket today, and when i was about to tighten the head bolts i realised that the new bolts didnt come with any torque specs. And as i need the car for work tomorrow, and the company i bought it from is closed, i was hoping that someone here might have the accurate torque specs?

Thanks in advance
Reply With Quote
  #2  
Old 06-26-2011, 04:04 PM
Member
 
Join Date: May 2011
Location: Greenwood, AR
Posts: 55
Thanked 4 Times in 4 Posts
Default

According to the Haynes manual,

60 NM, or 44 Ft lbs, for 1st step, then additional 90 degrees for second step, then tighten cylinder head to timing cover bolts. cylinder head bolt tightening sequence, I hope you have. I will try to explain this.

Looking at motor from front, you have left side and right side, Seven Cylinder head bolts on each side. On left side starting from front, the sequence numbers will be 13, 7, 5, 2, 4, 10, 12 the right side will be from the front, 11, 9, 3, 1, 6, 8, 14. Hopefully someone can post a diagram of this for you quickly.
__________________
88 XJ6 VDP
Reply With Quote
The Following User Says Thank You to JLBolen For This Useful Post:
Odmark (06-26-2011)
  #3  
Old 06-26-2011, 05:47 PM
Junior Member
 
Join Date: Mar 2011
Location: Sweden
Posts: 23
Thanked 0 Times in 0 Posts
Default

Cant thank you enough! I understood what you meant with the sequence so i made my own diagram, and now the car is ready to roll once again.
Reply With Quote
  #4  
Old 06-27-2011, 09:56 PM
Senior Member
 
Join Date: Sep 2009
Location: New Mexico
Posts: 204
Thanked 11 Times in 11 Posts
Default

I may have an oil leak from my head gasket. Havent found the leak quite yet but it is a likely suspect as it is slow and drips on stuff that makes it burn and smell.

How much trouble was it to do the gasket? Seems like a fairly easy but time consuming task. How many hours of direct labor was put into it?
Reply With Quote
  #5  
Old 06-28-2011, 08:38 AM
Junior Member
 
Join Date: Mar 2011
Location: Sweden
Posts: 23
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by gunnerman View Post
I may have an oil leak from my head gasket. Havent found the leak quite yet but it is a likely suspect as it is slow and drips on stuff that makes it burn and smell.

How much trouble was it to do the gasket? Seems like a fairly easy but time consuming task. How many hours of direct labor was put into it?
Well yes, it is actually pretty easy, but it sure is time consuming. Took me about 16 hours for disassembly and installing it. Be sure to mark all the cables and hoses carefully so you dont mix anything up, same thing with the camshafts and so on. I marked the distributor as well just to be sure. and you should be at least 3 people lifting the head back, or use an engine lift. You dont want to scratch the new gasket, the head is pretty heavy.
Reply With Quote
Old 06-28-2011, 08:38 AM
 
 
 
Reply



Tags
40, bolts, cylinder, diagram, distributor, engine, head, jag, jaguar, pattern, position, specs, torque, tourqe, xj40, xj6



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 12:25 AM.

Copyright © 2010 Internet Brands, Inc. All rights reserved.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014 vBulletin Solutions, Inc. All rights reserved.
JAGUAR and its logo are the registered trademarks of Jaguar Cars Limited. Jaguar Cars Limited is not affiliated with JaguarForums.com.