1972 cj5 232 starting peoblems - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 28 Old 08-08-2012, 05:40 PM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
1972 cj5 232 starting peoblems

New plugs. New cap and rotor. New coil. Rebuilt carb. Correct firing order. Only 60000 miles. Has compression. Wont start even with starting fluid. Plugs smelled of gas a little but not fould or wet. Any ideas gentleman? Thank you for your time.

dman1049 is offline  
Sponsored Links
Advertisement
 
post #2 of 28 Old 08-08-2012, 05:46 PM
danc9
Registered User
1975 CJ6 
 
Join Date: Mar 2012
Location: Clarksville
Posts: 227
Sounds like you're not getting enough fire. Have you filed the points?

"...my tub may be a bit wavy, but it's all steel!" ⁰lllllll⁰

DAN
danc9 is offline  
post #3 of 28 Old 08-08-2012, 11:13 PM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
Points are new. It has a healthy spark. Im not the first person to try and make this thing run. Could the distributer be off 180?
dman1049 is offline  
post #4 of 28 Old 08-08-2012, 11:15 PM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
It doesnt take much fire with starting fluid usually and I have even dumped gas straight into carb and not even a sputter.
dman1049 is offline  
post #5 of 28 Old 08-09-2012, 12:59 AM
BagusJeep
Registered User
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali
Posts: 5,314
Sounds like its back to basics.

Spark - have you taken off a plug lead and tested it with an old spark plug resting on the cylinder head? When you turn the engine over you should get a regular blue spark and sharp crack.

Timing - easy enough. Take out #1 spark plug and turn it by hand with a finger over the plug hole until you feel pressure and turn it until timing mark appears on the pulley. Is the rotor pointing at #1 lead? Are the points just opening? At least with points you can hear and see them opening.

Carb - when you work the accelartor can you see fuel being injected into the throat of the carb?

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline  
post #6 of 28 Old 08-10-2012, 01:00 AM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
Filed points found tdc and ligned up rotor with the lead. Also drained gas from tanks and am going to fill with newer gas. Keeping fingers crossed.
dman1049 is offline  
post #7 of 28 Old 08-10-2012, 03:41 AM
RWise
Registered User
1981 CJ5 
 
Join Date: Mar 2012
Location: Oakhurst
Posts: 578
How much compression? (on all cylinders) (should be about 120 - 150)
With timing mark lined up on crank, does rotor point to number 1 plug wire? If no then correct that, if yes 180* out is possible, swap wires straight across the dizzy cap. Also the harmonic balance may have slipped in which case the mark is no longer good (replace it) (one can use a straw to find TDC, rotate the engine by hand with the straw inserted into number 1 cylinder)(helps to pull all plugs)
Has timing chain been checked?
On the firing order, I have seen folks use reversed rotation, make sure the order is in the correct direction on the cap, though if this were the problem it should try and spit pop etc,,,
The best cleaner for points is a picture of President Washington, slip it between the points close them and pull out said picture, you will see the crud on the bill. This leaves a smoother contact surface than a file ever can! It can be any bill so a $100 bill will work the same as a $1 bill, long live those points!
RWise is offline  
post #8 of 28 Old 08-10-2012, 11:57 AM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
It has spark and ill check firing order again... i noticed that as I rotate the motor over with the cap off the distrubutor the points always seem to be incontact never open or snap. Arnt they supposed to open and close? Also it does finally sputter and such but the vacuum advance is all the way against the block so I cant retard the timing any more. Does this mean anything or no? I dont have a compression tester all I know is turing it over by hand is difficult.
dman1049 is offline  
post #9 of 28 Old 08-10-2012, 12:38 PM
hp_lovecraft
Registered User
1981 CJ5 
 
Join Date: Sep 2009
Location: Maine
Posts: 1,169
It should start with starter-fluid, even with the ignition system unplugged. It will auto ignite when compresed. Usually if it ONLY runs with starter fluid, then you know its probobly an ignition problem.

If it wont run with starter-fluid, I'd be checking things like the timing chain. Though you have good compression.
hp_lovecraft is offline  
post #10 of 28 Old 08-10-2012, 12:56 PM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
I did the straw trick with the piston to find tdc and the timing marks and rotor in distributor all are where they are supposed to be. Could the jetting be too lean in the carb? Its a signle barrel carter. Also have a brand new webber. Not sure which webber it is tho.
dman1049 is offline  
post #11 of 28 Old 08-10-2012, 01:42 PM
Joe73CJ5
Registered User
1973 CJ5 
 
Join Date: Jun 2012
Posts: 179
Are you sure you set up the distributor with the #1 cylinder at TDC during the compression cycle and not the exhaust cycle? Your carb could be adjusted wrong but I would think the starter fluid would start it for a short time. The weber part number is stamped on the side of the carb near the bottom. Could be like 32 DGEV or something like that.
Joe73CJ5 is offline  
post #12 of 28 Old 08-10-2012, 01:55 PM
CJ258
Registered User
1974 CJ5 
 
Join Date: Sep 2008
Location: El Centro, CA
Posts: 789
How long has it sat without running ? The points are probably not set correctly. They like to close when you cinch 'em down, common problem for guys that haven't got much experience with points.
CJ258 is offline  
post #13 of 28 Old 08-10-2012, 03:45 PM
Joe73CJ5
Registered User
1973 CJ5 
 
Join Date: Jun 2012
Posts: 179
I agree cj258. A dwell meter reading would show you right away. You can do a quick adjustment good enough to get it started with a matchbook cover.
Joe73CJ5 is offline  
post #14 of 28 Old 08-10-2012, 08:03 PM
gpower77
Registered User
1985 CJ7 
 
Join Date: Jan 2008
Location: Akron
Posts: 426
Yep the points have got to open and close, if they are not, or even just slightly opening you will not get spark, or any for that matter. The points have got to close, completing the circuit, then when they open this allows the primary and secondary windings in the coil to collapse and you get the high voltage from the coil through the rotor to the corrosponding spark plug and when mixed with fuel and air....well you get the picture.
gpower77 is offline  
post #15 of 28 Old 08-10-2012, 09:21 PM Thread Starter
dman1049
Registered User
 
Join Date: Aug 2012
Location: Silverdale
Posts: 24
Ill work on setting the points and see where it gets me. First time doing anything with points. Thanks boys
dman1049 is offline  
Reply

Tags
start problems

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









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.




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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
1972 Cj 5 E-Brake jeep725 Jeep CJ Forum 0 08-22-2011 12:02 AM
304 V8 1972 - Need Help !!! SoleilJeep Jeep CJ Forum 9 01-18-2010 07:51 AM
1972 Cj-5 Redsnook1125 Jeep CJ Forum 4 06-30-2008 10:48 PM
1972 CJ5 - misc. Q's unclearthur Jeep CJ Forum 8 06-10-2008 02:16 PM
1972 renagade garyd Jeep CJ Forum 2 05-18-2008 02:56 PM

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