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Does anybody know what socket it takes to remove the harmonic balancer, so I can get to the water pump bolt. This is a 2001 Chevy Silverado 2500HD, 2WD, 6.6 duramax diesel.:help
Water pump
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11 Posts
It should be a 36mm 12 point socket there is a special tool you can buy from the parts store to hold the flywheel from turning and it comes with the socket.
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2,088 Posts
Need Help
If you need help I can send you my socket for this repair...Where are you located
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2,477 Posts
X2 on that. if you get get it in there. but you will have to USE A 3/4" DRIVE breaker bar to get her loose if you cant get the gun in there. i couldnt get the gun in there unless i took the radiator out and the intercooler.
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19 Posts
i broke a torque wrench and 1/2 inch breaker bar before going to harbor freight picked up a 3/4 drive set worked great also removed inspection plate on left side trans put pry bar inbetween the fly wheel and the torque conv
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151 Posts
Really? What kind of impact and socket did you have? I pulled the radiator and my Ingersol fit fine with a Snap-On socket.
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4,790 Posts
^^^ya what he said
I'd go with getting the socket (borrow or buy) with the flywheel lock tool. Keep radiator in place and use a breaker bar with a 3' pipe over bar to add length... it comes off easy with this setup. Just pull the dampner off by hand... No puller needed; maybe giving a light pry to get it started. If you try the bar on frame w/starter; disconnect your wire harness to injectors or pull ecm fuse so it doesn't start or things could get even more interesting
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4,790 Posts
IGN 1 is the fuse you need to pull to keep the engine from firing.
You can make your own hold too by using a socket and extension if needed. Simply remove the starter and put a 15mm deepwell over one of the torque converter bolts (you may need to spin the engine to get one to line up) if the socket you are using is not long enough then add an extension and viola you have a flywheel hold tool.
You can make your own hold too by using a socket and extension if needed. Simply remove the starter and put a 15mm deepwell over one of the torque converter bolts (you may need to spin the engine to get one to line up) if the socket you are using is not long enough then add an extension and viola you have a flywheel hold tool.
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171 Posts
Once your in there. Take a torch and heat the middle of the bolt. Once its red hot he bolt will come right loose. When going back together get it tight and heat it again and tighten it somemore. Works great and no you will not hurt anything with the heat.
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4,790 Posts
all you have to do is reverse the polarity on the starte and the motor will turn backwards, duh.
The flywheel hold tool is nice. Only PITA about it is removing the starter.
Removing the Radiator stack will also make your life easier and doesnt take but maybe 30 minutes. It will save time on the rest of the job.
You don't pull the starter to use flywheel tool...Just slips into the hole on the bottom of the tranny after popping out spring steel cover. I can lock up the motor in 10 seconds.
Leave the starter in and leaving the radiator in saves about 1.5 hrs. There is plenty of room to work between the motor and radiator with the shroud and fan out of the way. Just how I roll... Thats 1.5 hrs I get to do or bill something else.
Leave the starter in and leaving the radiator in saves about 1.5 hrs. There is plenty of room to work between the motor and radiator with the shroud and fan out of the way. Just how I roll... Thats 1.5 hrs I get to do or bill something else.
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4,790 Posts
You must have a different tool. I have the GM flywheel hold tool
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