News: Putting FUN and FRIENDLINESS, FIRST into owning and learning about AMC small bodied cars, primarily Eagles, Spirits and Concords as well as vehicles built in AMC's Mexican subsidiary, VAM.

The AMC Eaglepedia can now be accessed using the buttons found below  This is a comprehensive ever growing archive of information, tips, diagrams, manuals, etc. for the AMC Eagle and other small bodied AMC cars. 

Also a button is now available for our Face Book Group page.


Welcome to the AMC Eagles Nest.  A new site under "old" management -- so welcome to your new home for everything related to AMC Eagles, Spirits and Concords along with opportunities to interact with other AMC'ers.  This site will soon be evolving to look different than it has and we will be incorporating new features we hope you will find useful, entertaining and expand your AMC horizons.

You can now promote your topics at your favorite social media site by clicking on the appropriate icon (top upper right of the page) while viewing the topic you wish to promote.


  • March 28, 2024, 05:27:05 AM

Login with username, password and session length

Author Topic: Cylinder Head Flatness Spec. Confusion  (Read 1094 times)

0 Members and 1 Guest are viewing this topic.

Offline djm3452004

  • Eagle
  • **
  • Posts: 125
  • Thumbs Up 18
Cylinder Head Flatness Spec. Confusion
« on: April 18, 2022, 08:09:08 PM »
Hi All --

I'm having a bit of trouble interpreting the service manual's flatness specification for cylinder heads (6 cyl).  Can you all please take a look at the attached image and let me know your opinions?

0.001", 0.002" or somehow up to 0.006" or 0.008"?  It's a very curious way of explaining the allowable variation, unless they're talking about a side-to-side or end-to-end situation.

Thanks in advance!

David
Current Project: 1983 Eagle Wagon 258
Past AMC Project(s):  1979 Spirit Liftback 232
                                1968 Ambassador 287

Offline rmick

  • Eagle Sport
  • ****
  • Posts: 386
  • Thumbs Up 40
Re: Cylinder Head Flatness Spec. Confusion
« Reply #1 on: April 18, 2022, 11:21:42 PM »
My manual 72 for 258 says .008 for full length of head .002 in 6 inch or .001 in 1 inch which is the same as what the 1980 manual says. Just printed differently. 0.001/1.0in .002/6in .008 fuel length
72 Javelin AMX
72 Javelin SST
72 Gremlin with 4.0
81 SX 4

Offline djm3452004

  • Eagle
  • **
  • Posts: 125
  • Thumbs Up 18
Re: Cylinder Head Flatness Spec. Confusion
« Reply #2 on: April 19, 2022, 05:02:36 AM »
My manual 72 for 258 says .008 for full length of head .002 in 6 inch or .001 in 1 inch which is the same as what the 1980 manual says. Just printed differently. 0.001/1.0in .002/6in .008 fuel length



Thank you, that definitely clarifies!  Much-appreciated!

David
Current Project: 1983 Eagle Wagon 258
Past AMC Project(s):  1979 Spirit Liftback 232
                                1968 Ambassador 287

 

SMF spam blocked by CleanTalk