258 Smoking - 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 > 258 Smoking

Rough Country Deals at JeepHut.comEliminate Hood Flutter!!!Introducing MONSTALINER™ UV Permanent DIY Roll On Bed Line

Reply
Unread 03-17-2009, 05:20 AM   #1
jmdkb12
Registered User
 
Join Date: Aug 2008
Location: Newnan
Posts: 25
258 Smoking

I just figured out my wiring issue and now that I can keep it running it is smoking real bad. I havent adjusted any of the mixture screws yet, could that be the problem? Could it be the EGR Valve is bad? Also I havent got all the vacum lines hooked up, which brings me to my next question. I dont have the stock air intake for the 258 so what is the best way to run vacuum lines off the valve cover and off the carb? The reason I ask is because I have seen many off diagrams of vacuum lines on here and they all are showing them with the stock breather. If a picture is needed let me know.
Thanks

jmdkb12 is offline   Reply With Quote
Unread 03-17-2009, 06:33 AM   #2
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 9,769
It runs....

You might want to give us a just a little hint as to the flavor and year of the engine and if you need emissions or not....
__________________
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 03-17-2009, 09:31 AM   #3
jmdkb12
Registered User
 
Join Date: Aug 2008
Location: Newnan
Posts: 25
sorry the year is a 79 on the 258 I think I might have been running it a little to rich. But yeah it runs. My main concern is the vacuum lines how they can be ran or bypassed without the stock breather? My next question and this might have to go into a new thread. On my timing the noch on the flywheel is at about 11 or 1130, what to I need to do to get it over to the correct location where the timing marks are?
Thanks
jmdkb12 is offline   Reply With Quote
Unread 03-17-2009, 10:00 AM   #4
BioTex
Registered User
2006 TJ Wrangler 
 
Join Date: May 2008
Location: Alpine, Tx.
Posts: 3,173
Not sure I follow what you are asking on the timing marks. If you are using a timing gun, and you rotate the distributor, the maks will align. You want the scribed line on the harmonic balancer to align with the mark on the timing cover. Use the mark labeled for 6 to 8 deg. to start with once you get the timing correct at idle with no vacuum leaks, then you can adjust the mixture screws. Bottom out the screws ever so slightly so you don't damage the seats then back them both out 1 1/2 turns if 2 bbl carb. if single, then there is only one screw. This will get you in the ball park. Set your timing with the vacuum line to the distributor unplugged and capped (so no leaks). This will be called initial timing.
__________________
'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
BioTex is offline   Reply With Quote
Unread 03-17-2009, 10:24 AM   #5
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 9,769
Quote:
Originally Posted by jmdkb12 View Post
sorry the year is a 79 on the 258 I think I might have been running it a little to rich. But yeah it runs. My main concern is the vacuum lines how they can be ran or bypassed without the stock breather? My next question and this might have to go into a new thread. On my timing the noch on the flywheel is at about 11 or 1130, what to I need to do to get it over to the correct location where the timing marks are?
Thanks
Which carb do you have on it?

Did you have the distributor out? If so it needs to be rotated to get the timing mark to come over on the balancer.
__________________
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 03-17-2009, 10:31 AM   #6
BioTex
Registered User
2006 TJ Wrangler 
 
Join Date: May 2008
Location: Alpine, Tx.
Posts: 3,173
I wish we had a sticky for how to set timing and adjust mixture. This gets asked a lot.
__________________
'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
BioTex is offline   Reply With Quote
Unread 03-19-2009, 08:01 PM   #7
jmdkb12
Registered User
 
Join Date: Aug 2008
Location: Newnan
Posts: 25
Ill give the vacuum on the dist off a try I didnt do that.
jmdkb12 is offline   Reply With Quote
Unread 03-20-2009, 06:41 AM   #8
CrazyHorse6
Registered User
1979 CJ7 
 
Join Date: Jun 2006
Location: Irmo, SC
Posts: 1,056
If you are in Newnan, GA, you have NO EMISSIONS inspections on a '79. Also, and I might have missed it, but what color smoke? Blue, black or white?
__________________
CJ7, 258, Dana 20 T-case, Dana 30 & AMC 20, TFI Ignition upgrade, headers, MC 2150 carb, YJ tub mod w/Family Style roll bar...


Are you military or former military? Take a look at militaryjeepers.com!
CrazyHorse6 is offline   Reply With Quote
Unread 03-20-2009, 08:13 PM   #9
jmdkb12
Registered User
 
Join Date: Aug 2008
Location: Newnan
Posts: 25
it was white im pretty sure
jmdkb12 is offline   Reply With Quote
Unread 03-22-2009, 09:20 AM   #10
CrazyHorse6
Registered User
1979 CJ7 
 
Join Date: Jun 2006
Location: Irmo, SC
Posts: 1,056
If it is cloud white it may indicate coolant or water getting into the combustion mix - has the coolant level been going down?
__________________
CJ7, 258, Dana 20 T-case, Dana 30 & AMC 20, TFI Ignition upgrade, headers, MC 2150 carb, YJ tub mod w/Family Style roll bar...


Are you military or former military? Take a look at militaryjeepers.com!
CrazyHorse6 is offline   Reply With Quote
Unread 03-22-2009, 09:25 AM   #11
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 9,769
Quote:
Originally Posted by jmdkb12 View Post
it was white im pretty sure
Condensation in the exhaust system can blow a bit of white until it heats all the way up, especially if there were a few short start ups.
__________________
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 03-22-2009, 12:30 PM   #12
jmdkb12
Registered User
 
Join Date: Aug 2008
Location: Newnan
Posts: 25
The thick white smoke has gone away since I adjusted the mixture, and I dont think that the coolant has gone way down if at all like Mike said I think that it is the condensation because I did have some short starts.
jmdkb12 is offline   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.