Is 4.2 vibration dampner supposed to come apart??? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 07-02-2001, 08:46 PM Thread Starter
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Is 4.2 vibration dampner supposed to come apart???

I pulled my harmonic balancer the other day, and now I have 2 pieces. There is the v-groove pulley and the round internal balancer. There is a rubber bushing that was sandwiched between them. Can this be put back together? Did I ruin this balancer? What should I do?

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post #2 of (permalink) Old 07-02-2001, 08:52 PM
 
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Re: Is 4.2 vibration dampner supposed to come apart???

it is now junk...

J ust
E mpty
E very
P ocket
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post #3 of (permalink) Old 07-02-2001, 09:38 PM Thread Starter
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Re: Is 4.2 vibration dampner supposed to come apart???

I thought so....

I should have bought the puller before I pulled the pulley off.

Do I need any special tools to install the new one???

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post #4 of (permalink) Old 07-02-2001, 09:41 PM
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Re: Is 4.2 vibration dampner supposed to come apart???

Nope, just bolt in on and tighten to 80 ft/lbs.

'85 CJ7 Bone Stock, in pieces..
post #5 of (permalink) Old 07-03-2001, 04:16 AM
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Re: Is 4.2 vibration dampner supposed to come apart???

Hi,

I am just about to change the timing chain on my 258 as I have about 10 degrees play in it. To undo the crank/vibration damper bolt, I can think of some ways, not necessarily the safest, but it works. However, tightening up the bolt to 80 ft/lbs... What is the easiest way to stop the crank from turning?

Hooch

'83 CJ-7 258/TR/TF999/D300 in Land Rover Country

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post #6 of (permalink) Old 07-03-2001, 07:54 AM
 
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Re: Is 4.2 vibration dampner supposed to come apart???

First I agree that that dampner is trashed. I don't think that after it's been seperated that it can be put back together correctly or last. Also isn't the timming mark on the dampner? Good luck finding the correct position.
As for the bolt. Air tools are great. You can also put the Jeep in gear and let and tranny help hold the engine. I usually use air or wack a socket driver with a hammer to loosen and if the engines in the Jeep put it in gear to hold while tightening. You can also have someone hold the brakes with it in gear. The engine won't be able to turn at all then.

Pigpen
76 CJ5 360/T18A/Bronco gear D20/D30 big brake disc, locker/D44 big drum working on disc/ factory slip/4inch lift/33's/6000lb winch/All Fiberglass/electric fan/full cage/ appetite for MUD
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post #7 of (permalink) Old 07-03-2001, 08:22 AM
 
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Re: Is 4.2 vibration dampner supposed to come apart???

its probably easiest to get another one. but, there is a place in Ca. that rebuilds them. its called Damper Dudes. i have a couple phone #'s, not sure which one is current: 1-800-413-2673 and 1-530-244-7225 and 1-530-244-2225. if anyone else has dealt with them, what is your opinion? hope this helps! matt

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post #8 of (permalink) Old 07-03-2001, 08:36 AM
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Re: Is 4.2 vibration dampner supposed to come apart???

pigpen,

I have no access to air tools, but getting the bolt undone is not the problem (whack with a hammer, long breaker bar resting on the frame and using the starter... Not too safe, but it works [img]/wwwthreads_images/icons/smile.gif[/img]). What I am getting at is torqueing the bolt back up to 80 ft/lbs with an automatic tranny... Can't hold it in gear! Any ideas?

Hooch

'83 CJ-7 258/TR/TF999/D300 in Land Rover Country

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post #9 of (permalink) Old 07-03-2001, 09:35 AM
 
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Re: Is 4.2 vibration dampner supposed to come apart???

Jam a wedged piece of lumber between the starter ring's teeth on the flex plate and the inside wall of the bell housing.
That should stop the crank shaft rotation to enable you to tighten down the dampner's bolt.

JAF
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post #10 of (permalink) Old 07-03-2001, 11:36 AM
 
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Re: Is 4.2 vibration dampner supposed to come apart???

Whoops! missed the auto thing there. Yea, use the wood in the flexplate teeth. Don't use anything metal. You might have to pull the starter for access. I can't think of any other way with the auto. I've had the luxery of doing all my engines off of the Jeep.

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76 CJ5 360/T18A/Bronco gear D20/D30 big brake disc, locker/D44 big drum working on disc/ factory slip/4inch lift/33's/6000lb winch/All Fiberglass/electric fan/full cage/ appetite for MUD
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