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Unread 02-27-2015, 01:03 PM   #1
JeepdaddyRC
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1983 CJ5 
 
Join Date: Oct 2014
Location: Madison, Wisconsin
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Check out this flywheel

Replacing my first clutch. Could this flywheel be causing the shudder at take-off? Now I just have to get it off! Just have basic tools, no air or impact tools. Breaker bar, wood, crow bar, screw driver unsuccessful. Newbie obviously not using correct technique yet. Any pics of your removal tricks appreciated.

img_0374-640x480-.jpg

img_0375-640x480-.jpg

img_0376-640x480-.jpg

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Unread 02-27-2015, 01:29 PM   #2
dirtdudeaz
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It could be. There is some decent wear on there.

Put two of your clutch housing bolts back in a few threads and skip one hole in between (in your top pic, it would be the two highest that are shown, and leave the one in the shadow off). Put your breaker bar in between the two bolts and use it to counteract the direction of loosening the flywheel bolts.

Yellow/orange is break bar

Blue shows direction of force

red is where bolts go
img_0374-20-640x480-.jpg

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Unread 02-27-2015, 02:04 PM   #3
tmshannon
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Have your flywheel machined anyway...looks like it's got plenty of heat cracks, but having it machined will make your clutch engage nice and easy.

Travis
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Unread 02-27-2015, 02:20 PM   #4
CrankyD
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I have had good luck using a ratchet across the centerline of the crank as shown in the image. Just a few whacks of the rubber mallet usually gets it done. Put them back on with a Torque wrench using the same method. The torque wrench is pretty important so you dont warp the flywheel as soon as it heats up.

Also don't neglect to inspect the whole clutch linkage for looseness. I had some bucking and shuttering on takeoff like you describe, I welded up my wallowed out 'ZEE' linkage and re drilled it. Problem solved!
File Type: pdf clutch.pdf (172.6 KB, 26 views)
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Unread 02-27-2015, 06:48 PM   #5
Budowski
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I had to use a product called Kroil - let it soak a few days. Long breaker bar to 'snap' the bolts free and bolts in the wheel as shown in the above diagrams, an impact wrench just wont do it. Definitely get it machined, you dont want to get it all back together and have it chattering. You'll only end up doing it again.
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Unread 02-27-2015, 07:01 PM   #6
JeepdaddyRC
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I'm not a mechanic, but not afraid to take things apart with my limited tool collection. Newbie questions: Do you hit the breaker bar with a hammer or slow push? Afraid I'm going to twist it off or round the bolt heads. These bolts are seriously tight. I'm twisting the whole motor. Heat? If so, what do you heat - the flywheel bolt or flywheel around it. Do shops use a high powered impact wrench to remove a 31 year old flywheel?
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Unread 02-27-2015, 09:12 PM   #7
roadhog304
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To keep from rounding off the bolt heads make sure to use a 6 pint socket. They make a tool to hold the flywheel from rotating but I have never used one. I have always used my 1/2" impact to remove them and never had a problem getting them loose with that.
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Unread 02-27-2015, 09:38 PM   #8
only in a jeep cj
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Quote:
Originally Posted by roadhog304 View Post
to keep from rounding off the bolt heads make sure to use a 6 pint socket. They make a tool to hold the flywheel from rotating but i have never used one. I have always used my 1/2" impact to remove them and never had a problem getting them loose with that.
^^^^^ this

and have that puppy resurfaced or replaced
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Unread 02-27-2015, 10:40 PM   #9
RenoF250
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It is heat cracked, just replace it, not worth machining. I got a new Luk for $70 shipped.

Use a 6 point socket installed fully and you won't hurt the bolts. Do not use heat. It won't help much and you can only hurt stuff. Air impact pays for itself in this situations.

That flywheel does not look too bad, I would not expect much shudder from it. What does your pressure plate look like? Clutch?
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Unread 02-27-2015, 10:48 PM   #10
TheDonk
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They make electric impact guns. Maybe look around at the auto parts stores around you and see if they have one to rent. I just replaced my flywheel/clutch a couple weeks ago and my electric impact zipped it off in about a minute.
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Unread 02-28-2015, 02:28 AM   #11
skizriz
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I have a 1/2" drive electric impact I bought on sale at Harbor Freight and used a coupen for about $30. It actually works very well.
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Unread 02-28-2015, 11:27 AM   #12
TheDonk
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Quote:
Originally Posted by skizriz View Post
I have a 1/2" drive electric impact I bought on sale at Harbor Freight and used a coupen for about $30. It actually works very well.
I generally try to avoid Harbor Freight, especially if the tool has moving parts. But for something like this, that would be perfect.
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Unread 02-28-2015, 09:51 PM   #13
CJ65
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I used a Ridgid brand strap wrench that is cloth strap. It is a plumbers tool, but works perfect on the harmonic balancer to stabilize the engine while loosening or tightening bolts on the flywheel. I strapped it on the pulley wheel on the crank and the engine compartment pinned it steady. None of my blasted teen agers are around when I need their help, so I have learned to only rely on myself for help. Once the strap wrench was on and tight, very easy to do, I was able to use my long breaker bar with a cheater and get those bolts off. That strap wrench is one of my favorite Jeep/Auto tools. It always comes in handy.
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Unread 02-28-2015, 10:19 PM   #14
Cutlass327
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I had my 258's flywheel machined and a new ring gear installed, and was about $6 from a brand new flywheel. Go to Rockauto.com, I bet you will find one for a good price there...
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Unread 03-01-2015, 12:35 AM   #15
TheDonk
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The impact gun took them right off, but when torquing them back on I put one the bolts back in the block and clamped some vice grips on the ring gear (the outside of it to avoid damage). When those are butted up together you can torque to your hearts content.
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