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Problem with crank pully

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Old Dec 12, 2010 | 01:41 PM
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Default Problem with crank pully

Started my c5 this morning and heard a grinding noise. Investigating I found that the serpentine pulley on the crank had slid back rubbing on the timing chain cover. Does the assembly have to be replaced or can it be repositioned forward on the rubber dampeners? If so how?
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Old Dec 12, 2010 | 01:43 PM
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Originally Posted by tpovette
Started my c5 this morning and heard a grinding noise. Investigating I found that the serpentine pulley on the crank had slid back rubbing on the timing chain cover. Does the assembly have to be replaced or can it be repositioned forward on the rubber dampeners? If so how?
Nope, time for replacement, the balancer has separated.
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Old Dec 12, 2010 | 01:47 PM
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Also, if it were my car, I wouldn't start that engine until a new damper is installed. Others have reported their pulleys flying off (EDIT: perhaps "coming off" would have been a better description) resulting in very expensive collateral damage.

Last edited by Cratecruncher; Dec 12, 2010 at 03:10 PM.
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Old Dec 12, 2010 | 01:54 PM
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Any suggestions on how to lock up the engine in order to pull the 250 lb torqued bolt? I have an automatic trans
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Old Dec 12, 2010 | 01:54 PM
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Originally Posted by Cratecruncher
Others have reported their pulleys flying off resulting in very expensive collateral damage.
Wow can you direct me to that thread? I've never heard of a balancer "flying off".............I don't know how it could get passed the rack.
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Old Dec 12, 2010 | 02:38 PM
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LUCKY131969,

Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY. I've revised it.

TPOVETTE,

I have not done this repair yet. However, my Balancer is beginning to wobble so I've been reading most of the HB related posts. Until someone with more experience posts to your thread I'd suggest doing a search of the older threads. There are several techniques mentioned.

Last edited by Cratecruncher; Dec 12, 2010 at 03:13 PM.
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Old Dec 12, 2010 | 03:09 PM
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Originally Posted by Cratecruncher
Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to merely to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY.

TPOVETTE,

I have not done this repair yet. However, my Balancer is beginning to wobble so I've been reading most of the HB related posts. Until someone with more experience posts to your thread I'd suggest doing a search of the older threads. There are several techniques mentioned.
Thanks for the reply, never intended on restarting. the older threads all suggested putting the trans in 5th gear on manuals.
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Old Dec 12, 2010 | 03:18 PM
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I read a post where one took a H/D impact to the bolt on an automatic. Make sense?
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Old Dec 12, 2010 | 03:19 PM
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There are flywheel locking tools that are probably your best option. There are two versions. One that goes in place of your starter. And one that bolts to the front of your crank pulley and wedges against the frame.

Some just stick a long bolt or punch through a flywheel hole into the block. But there have been reports of damaged/bent flywheels from this method.
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Old Dec 12, 2010 | 03:20 PM
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Originally Posted by Cratecruncher
LUCKY131969,

Hmm, you could start with damaging the rack trying to get "passed" it. Then there is the timing cover that it's currently making metal to metal contact with.

The reason I posted the comment was to warn the OP that more damage could result if he starts that engine again. (He likely knew that anyway.) Sorry if my first post seemed too alarmist to you LUCKY. I've revised it.
I did not take your post as "alarmist" at all......I was hoping you could provide info a balancer flying off....I was looking forward to reading about it.
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Old Dec 12, 2010 | 03:30 PM
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Hoping for an easier fix, didn't want to pull the steering but looks like I will have to. I don't have an impact driver strong enough to work but thanks.
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Old Dec 12, 2010 | 03:33 PM
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[QUOTE=MawneeC5;1576193766]There are flywheel locking tools that are probably your best option. There are two versions. One that goes in place of your starter. And one that bolts to the front of your crank pulley and wedges against the frame.

Some just stick a long bolt or punch through a flywheel hole into the block. But there have been reports of damaged/bent flywheels from this method.[/

The starter lock sounds like the best method. Who makes them and where are they sold?
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Old Dec 12, 2010 | 03:39 PM
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Originally Posted by tpovette
The starter lock sounds like the best method. Who makes them and where are they sold?
Here is a place where I got my tools.

http://www.etoolcart.com/flywheelhol...j-42386-a.aspx

makes the job easieer
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Old Dec 12, 2010 | 06:12 PM
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Originally Posted by tpovette
Any suggestions on how to lock up the engine in order to pull the 250 lb torqued bolt? I have an automatic trans
The procedure is in the "service manual". If you do not have one, I suggest you either purchase one or get an ALL DATA DIY account.
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