Repair and Replace 90's YJ

dougiet

Well-known member
The good news, the timing gun picks up the crank pully timing mark, the timing chain has not jumped a tooth. Set timing to 8* BFTDC.

I loaned a compression tester from CT and did all cylinders.

# 1 135 Note: These readings are at 7 to 8 revolutions or when the gage has stoppped moving.
# 2 140
# 3 135
# 4 145
# 5 135
# 6 140

These readings are taken at 4 engine revolutions. (July 30th)
# 1 = 130
2 = 125
3 = 130
4 = 130
5 = 130
6 = 135





The engine has had about 1/2 an hour of idling since starting up after a year or more of not running.

Miracle Oil and Seafoam into each cylinder and oil every day for a couple of weeks before I got the engine started.

Spent some time this week painting the block and parts.

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Twinkie

Administrator
Staff member
Club Member
# 1 135 Note: These readings are at 7 to 8 revolutions or when the gage has stoppped moving.
# 2 140
# 3 135
# 4 145
# 5 135
# 6 140

These readings are taken at 4 engine revolutions. (July 30th)
# 1 = 130
2 = 125
3 = 130
4 = 130
5 = 130
6 = 135



Spent some time this week painting the block and parts.
Those are good numbers. That's some nice looking lipstick (the paint). LoL
 

dougiet

Well-known member
Thanks, Twinkie

I can run this engine next year and not tear it down.

The mechanical timing is complete. Now the ignition timing is showing signs of problems, the #6 plug is not firing, the electrical wires to the dizzy are crimped in spots.
The wiring harness is from a 93 or newer 4.0 electronic set up said this Jeep restorer from 2015. I am just drooling to remove all of it and sell it. Way more wires than needed.



 

dougiet

Well-known member
Been tasked with looking after my 9lb dog for the past 3 weeks. Sophie a 2 1/2/ yr Brussels Griffon needs hip replacements on both hips and the surgery is on Nov 12th at a vet hospital. Many weeks of recovery are ahead for her and my family and I am ready 24 hours a day for my best friend.
If you have a dog this is easy to understand!

Back to the jeep.
Received a 258 ci carb direct fit From Amazon to try for a season, It has the stepper motor removed. It is installed, waiting for a fuel line adaptor to feed the fuel line to. link.... Jeep 258 Carb

The plan is to get the carb gas and start her up and park inside the garage till the spring.

Received a 2150 Carb from amazon, the ad description was not what I got. The ad claimed a 1.08 venturi with a 49 main jet but this carb is a 1.21 with 51 main jets. I told the wife to complain and Amazon refunded all costs. I have spent months searching for 2150 with a 1.08 and have given up looking and will go with the jeep 258 replacement. The smaller throttle plates on the 258 replacement carb will perform like a steady as she goes engine as the 2150 will be a lot of throttle response.

Thank you for your interest in my jeep, I will plan to resume this repair and replace thread in the spring.

Doug


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dougiet

Well-known member
The Jeep starts right up one turn. This jeep knock-off carb is guud!

Runs in gear smooth, no problems. Engine runs and sounds like the 1990's 80's and 70's 258 should, like going back in time!

Done deal for the motor. FUCKIN GREAT!
 
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Kunker

Administrator
Club Member
I can only imagine how good that must feel after the work you've put into it. Good job!
 

dougiet

Well-known member
Thanks, it's fun.

Drove the Jeep half a dozen times around the neighborhood! The steering tracks straight, a solid feel to the ride, driveline handles the engine power very well, solid package Jeep.

Considering to drive as is and see what it becomes in the summer of 22. Get seat time and size things up.

P.S.
My best little friend has a big recovery ahead at 8 days post O.P. Looking good.20211118_145314.jpg20211118_145332.jpg20211118_145357.jpg
 

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toytech

Well-known member
Club Member
Glad the Jeep is running.
Also very happy to hear that your dog's surgery went well and is recovering🙂 She'll be a good co-pilot for you
 
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