304 timing - JeepForum.com
 1Likes
  • 1 Post By JEEPFELLER
 
LinkBack Thread Tools
post #1 of 6 Old 10-12-2021, 04:12 PM Thread Starter
kmiller7351
Registered User
1981 CJ7 
 
Join Date: Aug 2021
Location: ATLANTIC CITY
Posts: 39
Garage
304 timing

Quick question but what is the timing supposed to be set at? Having a mech time it for me but need info on TDC ect. trying to fix brakes and air i suppose in sys.

kmiller7351 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 10-12-2021, 05:41 PM
JEEPFELLER
Registered User
 
JEEPFELLER's Avatar
1977 CJ5 
 
Join Date: Dec 2015
Location: W. South Carolina
Posts: 1,821
Garage
By the book for a manual transmission----auto info if you need it!

'72-'79----5 before @ 750 RPM

'80---Exc CA 10 before---CA 5 before @ 700 RPM

'81---Exc High Altitude---8 before @ 600 RPM---High Altitude----12 before @ 700 RPM

Disconnect and plug off the vacuum advance hose to the distributor

Reconnect when task is done

Some folks experiment with their timing for performance or MPGs

----JEEPFELLER
kmiller7351 likes this.
JEEPFELLER is offline  
post #3 of 6 Old 10-14-2021, 10:13 PM
howardellis
Registered User
 
Join Date: Oct 2021
Posts: 5
Just a quick inquiry, but what is the recommended timing? I'm having a difficult time, but I need information about TDC and other things. In sys, I'm guessing you're attempting to repair brakes and air.
howardellis is offline  
 
post #4 of 6 Old 10-15-2021, 03:40 AM
BagusJeep
Registered User
 
BagusJeep's Avatar
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali
Posts: 8,763
Spongy brakes?

What parts are on it? Have you ever seen the brakes working properly?

The physical conditions that I look at are:

- flexible brake hoses - in particular cracks and bulges
- fluid leaks - a pinhole in a brake line will make the brakes spongy but you will find fluid missing
- booster to master cylinder clearance. Supposed to be around 15 thou, a few millimeters and the brake pedal will floor
- Combination / proportioning valve - if this is stuck one way you will not get the brakes bled, depending on model you can check the setting and hold it there.
- brake calipers on front - make sure they are not swapped, the bleed nipple needs to be at the top of the piston, not the bottom. Have it on the bottom and you will not get the air out.

Then you need to bleed it. the master cylinder can be bled in a number of ways but as the pedal does not push the plunger all the way, it needs special attention. Best is to take it off and bench bleed it. Then follow the bleed procedure from the longest or furthest point back to the shortest.

BagusJeep lives in Bali with far too many 4x4s:
1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
1980 Land Rover Series III 109" troop carrier - ROVER
BagusJeep is offline  
post #5 of 6 Old 10-15-2021, 10:17 AM Thread Starter
kmiller7351
Registered User
1981 CJ7 
 
Join Date: Aug 2021
Location: ATLANTIC CITY
Posts: 39
Garage
No leaks, still getting bubbles after 3 quarts rear per side as of today. There is an intermittent series of large bubbles at times. The brake pedal always did go to floor when i first got it. Will run later to see if there is a difference but all four have decent flow
kmiller7351 is offline  
post #6 of 6 Old 10-15-2021, 07:18 PM
JEEPFELLER
Registered User
 
JEEPFELLER's Avatar
1977 CJ5 
 
Join Date: Dec 2015
Location: W. South Carolina
Posts: 1,821
Garage
TDC? See post 5 in here https://www.jeepforum.com/forum/f8/number-1-a-4402475/


Brakes? See Post 21 in here https://www.jeepforum.com/forum/f8/b...43/index2.html

Positive feedback???

----JEEPFELLER
JEEPFELLER is offline  
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome