Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN









Search Auto Parts

1978 Jeep cj5 dies at adle rough running smoke


  Email This Post



Guest
Anonymous Poster
roberttmayer@yahoo.com

Aug 26, 2009, 1:36 PM

Post #1 of 13 (3564 views)
1978 Jeep cj5 dies at adle rough running smoke Sign In

My cj5 has been sitting for a few years - started right up after replacing motor mounts and putting some new body parts on - was running fone for the last few weeks short trips around the block - today suddenly started to run rough, and die at idle. Will start right up if I punp the gas pedal but will not idel and smokes alot when revving- any advice??


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 26, 2009, 1:39 PM

Post #2 of 13 (3557 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

What color is the smoke? Blue/gray, black, white?
Any odor to the smoke?
Is the check engine light coming on?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Guest
Anonymous Poster
roberttmayer@yahoo.com

Aug 26, 2009, 1:46 PM

Post #3 of 13 (3553 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Smoke is gray/black fills garage and stings the eyes - there is no check engine light or really any electronics on this thing other than the electronic ignition.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 26, 2009, 1:50 PM

Post #4 of 13 (3545 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Sorry, didn't notice the year at first.

It sounds like the engine is running way too rich. That would have to be caused by something in the carburetor. You may have gotten a piece of dirt caught in the needle and seat causing it to flood over. You really need some carb knowledge to take that apart though.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Guest
Anonymous Poster
roberttmayer@yahoo.com

Aug 26, 2009, 2:02 PM

Post #5 of 13 (3542 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Thanks-

That makes sense- When I took the air cleaner off when it first died there was part of an acorn inside the air filter - not sure how it could have gotten in there there - maybe a squirrel -

Any way to clean it without taking it apart??


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 26, 2009, 8:50 PM

Post #6 of 13 (3534 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

No, the control valve that controls the fuel level is internal and would most likely have to be disassembled to access it.
You can try removing the fuel inlet line and see if the is a removable fitting after it but most aren't designed that way.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 30, 2009, 7:02 AM

Post #7 of 13 (3523 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

To add: 258 six - right? Wild problems with intake manifold and at the age now think sunken floats in carb. Just my 2 cents which lateley has only been worth thatCrazy

More: Once fouled up plugs must be made to work and eventually replaced or screws up diagnosing it...........



Guest
Anonymous Poster

Aug 31, 2009, 8:40 AM

Post #8 of 13 (3516 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Yes 258 Six - so rebuilding the carb and replacing the plus is a good place to start??Cool


DanD
Veteran / Moderator
DanD profile image

Aug 31, 2009, 9:12 AM

Post #9 of 13 (3513 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Here’s my 2 cents; not worth as much as Tom’s; I’m talking Canadian funds EH. LOL
I agree with Hammer, Tom and your thoughts of having the carb rebuilt; kind of a dead give away with you saying “Smoke is gray/black fills garage and stings the eyes”; there’s nothing like air saturated with hydrocarbons and carbon monoxide. LOL
Hope you get the jeep running properly; there’s nothing like the bottom end torque of those old 258’s.
I had one in a Gremlin back in the seventies; that thing would have the tires still just a smoken coming out of second gear; but then ran out of steam at 70mph. LOL

Dan.

Canadian "EH"






Guest
Anonymous Poster
roberttmayer@yahoo.com

Sep 5, 2009, 9:09 AM

Post #10 of 13 (3478 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

OK Guys - Took the carb apart and replaced the needle and seat and generally cleaned her up - reinstalled- still running the same - but noticed that if I take off the large vacuum hose that goes from the base of the carb to the valve cover the engin will idle and run smoothly but still smokes. Mad Any advice??


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 5, 2009, 11:52 PM

Post #11 of 13 (3460 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Needle valve doesn't dictate level of fuel - floats do and must me measured,

T



Guest
Anonymous Poster
roberttmayer@yahoo.com

Sep 12, 2009, 1:10 PM

Post #12 of 13 (3438 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

SmileSmileThanks Guys! - Took the carb back off finished the rebuild including the accellerator pump and cleaned it all out again - checked and adjusted the float level and drop etc - took care of it - running great now - on to the next thing! Appreciate your insightSmile


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 13, 2009, 2:51 PM

Post #13 of 13 (3431 views)
Re: 1978 Jeep cj5 dies at adle rough running smoke Sign In

Great to hear the good news! Thanks for the feedback on how it worked out,

T







  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap