'89 YJ 4.2L Questions

[Johns89YJ]

1050505

183000 miles, brand new rebuilt Carter Carb.



Proper set-up for the idle(s)?



Live in NE PA. Vehicle get only to about 155 deg F (according to gauge), reads around 200 in summer. Does everybody else run this cold in the winter?[addsig]

 

[MORGSTER]

1050509

Sounds like a Jeep that has a stuck open or missing thermostat.

[addsig]

 

[allabs5150]

1050510

You didnt say but I am assuming you are running a 258ci with the 2 barrel carb, and manual transmission, if you are follow these specs:



Initial timing at curb idel ( vacuum hose disconected) set to 6 degrees



curb idel speed rpm set to 650



Hope this helps



[addsig]

 

[dingus]

1050517

i have a 180 degree thermostat in my XJ and thats about what i get temperature wise- 155 ish... in the summer i near 210 when i'm idling, it backs off when i get moving. if i wanted it warmer, i'd pick up a 195 degree t-stat. [addsig]

 

[Johns89YJ]

1050535

Yes, this is a 258, with a manual transmission



I'm running a 195 tstat and have cardboard in front of the rad. That's how I get the 155 gauge reading. It was around 135/140 before the cardboard.



This is a new tstat, because I thought the old one was stuck open. I did not notice the jeep running any warmer with the new tstat.[addsig]