|
Post by cdlongjr on Nov 4, 2009 3:11:46 GMT -5
Finally got to drive the YJ yesterday. Acceleration seems to be slower that the CJ-5 was. She wouldn't go faster than 55 mph. Several times she coughed, (mini backfire), but picked rite up again. Timing is on the money & I have a Ford iginition. Carb is an MC2100, (new rebuilt from auto parts store). Plugs are 12s, not 14s like the manual says. vacuum gauge is steady @ 16". B&M TH350 auto trans. Serious shimmy in the front end around 40 mph, but not all the time. Seems to be worse accelerating than decelerating.4" lift w/ 32" Armstrong tire on American aluminum wheels.
|
|
|
Post by cdlongjr on Nov 5, 2009 3:24:42 GMT -5
I wouldn't know how to tell if the timing chain was messed up. When I checked the vacuum @ the PVC vale, it was low & needle was bouncing. I had to turn the distrubutor 1/2 turn to the rite to get the vacuum needle stedy. When checked w/ a timing lite it was rite on the money. Had her to 65 w/ the Weber that came on her, but couldn't get the mix rite on the Wber. 2100 linkage is in the 2nd hole on the throttle linkage & outside hole on the lever on the front of the carb.
|
|
|
Post by cdlongjr on Nov 6, 2009 3:35:26 GMT -5
I'm pretty sure it's something w/ the MC2100. When the Weber was on, she'd do 65 easy. Problem w/ the Weber was it ran sooo rick it looked like I had a diesel when she was @ idle. Couldn't get the Weber to lean out.
|
|
|
Post by cdlongjr on Nov 7, 2009 4:07:05 GMT -5
Yesterday I played some more. Changed the fuel filter. 18" of vacuum @ idle. Pinched off hose to brake booster to make sure booster wasn't leaking. Timing @ 14 degrees. 40 mph was about tops. Engine seemed to die. If I pumped the accelerator, power comes back. Carb has 121 stamped on the driver's side of the fuel bowl. Power valve has no numbers stamped on it.
|
|
|
Post by YellowRubi on Nov 7, 2009 6:43:00 GMT -5
Sounds like a weber is needed.. I had a YJ 4.2 same stuff put the weber in and it ran great. I'm sure you can find a used one in great shape somewhere. I bought mine new and barley needed any tuning right out of the box. Sounds like the weber you had was bad, I was able to really adjust my richness and had it pretty leaned out.
|
|
|
Post by cdlongjr on Nov 17, 2009 3:27:18 GMT -5
I got rid of a Weber or the MC2100. Ran too rich.
|
|