82 CJ7 - Trouble Starting - 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 CJ Forum > 82 CJ7 - Trouble Starting

Clayton Off Road WJ Long Arm Kits!Baseline 4x4 Lifetime Warranty 4340 Chromoly Axle Shaft KiClayton Off Road - JK Prototype Gas Tank Skid

Reply
Unread 05-17-2010, 05:00 PM   #1
jeepdude1107
Registered User
 
Join Date: Oct 2006
Location: Batavia, Illinois
Posts: 49
82 CJ7 - Trouble Starting

I went to start up my CJ7 last last year. It had been a couple of weeks since it last ran and began to turn over just fine. On the second attempt to start, it didn't turn over at all. I am getting power when I turn the key, but nothing from the engine. I have replaced the starter and the solenoid, but no results. It seems like something is "locked up" and not allowing the engine to start. Anybody have any ideas??? Thanks in advance!!

__________________
1982 CJ7
2" Rough Country Suspension Lift
31" x 10.5" Tires
15" American Racing Alloy Wheels
jeepdude1107 is offline   Reply With Quote
Unread 05-17-2010, 06:59 PM   #2
Trapshooter
Registered User
1986 CJ7 
 
Join Date: Mar 2007
Location: Jacksonville, Oregon
Posts: 2,309
I am going to ask a dumb question here: Have you double checked the battery? Just because the battery shows 12v doesn't mean there are enough cranking amps to start the engine. A shorted cell in the battery will cause the symptoms you have described.

If you haven't already, either try another battery or jump the existing unit.

Good Luck..........
__________________
'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels

'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made

My 401 build: [url]http://www.jeepforum.com/forum/f8/trapshooters-401-build-1338277/[/url]
Trapshooter is offline   Reply With Quote
Unread 05-18-2010, 09:28 PM   #3
jeepdude1107
Registered User
 
Join Date: Oct 2006
Location: Batavia, Illinois
Posts: 49
Trapshooter,

Thanks. I had tried to jumpstart the battery twice.....no luck. The battery is about 2 years old.
__________________
1982 CJ7
2" Rough Country Suspension Lift
31" x 10.5" Tires
15" American Racing Alloy Wheels
jeepdude1107 is offline   Reply With Quote
Unread 05-18-2010, 10:38 PM   #4
Trapshooter
Registered User
1986 CJ7 
 
Join Date: Mar 2007
Location: Jacksonville, Oregon
Posts: 2,309
I would still try a different battery; anything you have out of a different vehicle. A shorted cell can "suck" everything on a jump.

By trying a different battery you have eliminated one item from the equation.

Good Luck............
__________________
'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels

'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made

My 401 build: [url]http://www.jeepforum.com/forum/f8/trapshooters-401-build-1338277/[/url]
Trapshooter is offline   Reply With Quote
Unread 05-18-2010, 10:40 PM   #5
Trapshooter
Registered User
1986 CJ7 
 
Join Date: Mar 2007
Location: Jacksonville, Oregon
Posts: 2,309
Just went back to your original post....have you tried to turn the engine over by hand?

Pull all the plugs and make sure the engine itself is not seized.
__________________
'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels

'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made

My 401 build: [url]http://www.jeepforum.com/forum/f8/trapshooters-401-build-1338277/[/url]
Trapshooter is offline   Reply With Quote
Unread 05-18-2010, 11:25 PM   #6
SecretSquirrel
Registered User
1980 CJ7 
 
Join Date: Dec 2009
Location: Troy, AL
Posts: 190
Quote:
Originally Posted by jeepdude1107 View Post
I am getting power when I turn the key, but nothing from the engine.
How and where are you checking this?

If the solenoid, battery, ignition switch, and starter all check good, you may want to check or add a starter ground wire. Remember voltage is not amperage, you may read 12 volts, but a bad connection or wire may limit the amps a circuit will carry.
SecretSquirrel is offline   Reply With Quote
Unread 05-19-2010, 04:02 AM   #7
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 13,110
I have seen dirty battery cables cause this, especially when they are dirty where they bolt to the block.
__________________
Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is online now   Reply With Quote
Unread 05-24-2010, 08:21 PM   #8
jeepdude1107
Registered User
 
Join Date: Oct 2006
Location: Batavia, Illinois
Posts: 49
Thanks for the the pointers so far.

I don't have an extra battery to test but the battery tested good when I took it in. The cables are clean. I have a new starter in there is well, but no luck. Where would be the best place to attach a ground wire? How would I try starting the engine by hand? What about the starter relay...is that a possibility?

Thanks!
__________________
1982 CJ7
2" Rough Country Suspension Lift
31" x 10.5" Tires
15" American Racing Alloy Wheels
jeepdude1107 is offline   Reply With Quote
Unread 05-24-2010, 09:10 PM   #9
Roadymi
Registered User
1982 CJ7 
 
Join Date: Jun 2009
Location: Central MI
Posts: 319
Run a dedicated ground right to one of the starter mounting bolts.

The previous post about rolling over by hand did not mean to start by hand, just suggesting attemting to roll motor over by hand to make sure it is not seized. If your fan belts are good and tight you should be able to "roll the motor over by hand" by pulling on the fan blade. Just make sure the keys are pulled so someone doesn't inadvertantly hit the switch with your hands in there.
__________________
[B]If you don't stop, you won't be stuck[/B]
Roadymi is offline   Reply With Quote
Unread 05-24-2010, 09:23 PM   #10
jsjpn
Registered User
1971 CJ5 
 
Join Date: Mar 2009
Location: Libby,Montana
Posts: 11
I would make sure all battery post clamps and connections are good and clean. You may have corrosion up inside the cables causing lost of amperage due to the corrosion. just my two cents! good luck!
jsjpn is offline   Reply With Quote
Unread 05-25-2010, 04:35 AM   #11
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 13,110
Quote:
Originally Posted by jeepdude1107 View Post
Thanks for the the pointers so far.

I don't have an extra battery to test but the battery tested good when I took it in. The cables are clean. I have a new starter in there is well, but no luck. Where would be the best place to attach a ground wire? How would I try starting the engine by hand? What about the starter relay...is that a possibility?

Thanks!
Your symptoms of a turn over, then no more imply either the battery is just too low (can still be good, but low in charge) or maybe the starter relay/solenoid has gone bad or a connection on it has gone bad

I use a booster or jumper cable to test grounds. If I run one from the battery negative post to the engine block and the starter then works, I know I have a bad negative cable. They can go bad internally where you can't see it too.

The starter relay is on the fender and is also called a solenoid by some. It can easily have bad connections and is notorious for the bad connections causing a no start.
__________________
Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is online now   Reply With Quote
Unread 05-25-2010, 06:37 PM   #12
jeepdude1107
Registered User
 
Join Date: Oct 2006
Location: Batavia, Illinois
Posts: 49
No luck yet....here is what I've done so far:

1) New ground from battery
2) Created ground from starter
3) Replaced Solenoid
4) Replaced Starter
5) Attempt to turn enginer over by hand - unable to move anything (loose belts, anything else I can do to attempt this?)
6) Pulled spark plugs - plugs 4, 5, and 6 were crusty and the rest were dry.

Thanks for your help so far. Any of the above mean anything?
__________________
1982 CJ7
2" Rough Country Suspension Lift
31" x 10.5" Tires
15" American Racing Alloy Wheels
jeepdude1107 is offline   Reply With Quote
Unread 05-26-2010, 05:13 AM   #13
tigercreek
Junior Member
 
tigercreek's Avatar
1984 CJ7 
 
Join Date: May 2010
Location: Ousley, GA
Posts: 76
How are you trying to turn the engine over by hand?

The nut you want to access is the same one holding the pulley with the timing marks.

You should be able to rotate it one way or the other with a breaker bar or a 1/2" drive socket wrench.

If you can't move it, pull your starter and make sure it isn't locked up in the engaged position.
tigercreek is offline   Reply With Quote
Unread 05-27-2010, 05:11 AM   #14
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 13,110
I would be making sure the engine turned over next. Like mentioned use the bolt on the crank pulley or with the plugs out it should even turn by hand.

If the belts are loose enough to slip by hand, then your battery will never got a good charge and will slowly die on you. The alternator takes a few HP to spin up under load and it it can hand slip, no way will it hold under load.
__________________
Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is online now   Reply With Quote
Reply
Thread Tools


Suggested Threads





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.