Timing Chain has jumped
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 90
Likes: 0
Year: 1991
Model: Cherokee
Engine: 4.0
Ok guys - I think this is my issue, my neighbor is uot of town and he borrowed my timming gun, o I am not sure yet. Tell me what you think.
I have spark, and fuel in the rail, she turns over without an issue.
kind of sputters without starting.
The CPS checks out good (followed the write up - Thanks Guys)
BTW I would love to meet the engineer who put the timing lock down bolt ina nice position where youcan not get a socket on it, and a wrench is blocked by the motor mounts.
What an idiot.
I need a 13mm crows foot to get that loose of couse I don't have one.
1) what do you all think? Timing chain?
2) How tough a job is this?
3) does the engine need to come out to replace it?
and here is the nice question...
4) what perfromance upgrade would you do while putting in a new chain?
Of course that is assuming that the valve train has not been destroyed by a jumped chain.
Thanks
I have spark, and fuel in the rail, she turns over without an issue.
kind of sputters without starting.
The CPS checks out good (followed the write up - Thanks Guys)
BTW I would love to meet the engineer who put the timing lock down bolt ina nice position where youcan not get a socket on it, and a wrench is blocked by the motor mounts.
What an idiot.I need a 13mm crows foot to get that loose of couse I don't have one.
1) what do you all think? Timing chain?
2) How tough a job is this?
3) does the engine need to come out to replace it?
and here is the nice question...
4) what perfromance upgrade would you do while putting in a new chain?
Of course that is assuming that the valve train has not been destroyed by a jumped chain.
Thanks
Seasoned Member
Joined: Nov 2008
Posts: 429
Likes: 0
From: Blairsville, PA
Year: 2000
Model: Cherokee
Engine: 4.0L home brew Snorkle
heres what i think. go to sears and get a metric box and open set, maybe the ones that ratchet. then call your neighbor and yell at hime for not returning your tool before he left town.
performanct upgrade: you can put a 4.2 cam in while your at it. you will need to take the chain off to do this anyway, so nows your chance
performanct upgrade: you can put a 4.2 cam in while your at it. you will need to take the chain off to do this anyway, so nows your chance
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 90
Likes: 0
Year: 1991
Model: Cherokee
Engine: 4.0
I was planing on blowing 6psi of boost into her one day, the SC is on the shelf int he garage.
I's either this or a Cummins 4BT transplant, and sell the 4.0.
Not sre how big of a project I want right now.
I's either this or a Cummins 4BT transplant, and sell the 4.0.
Not sre how big of a project I want right now.
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