Where to get longer crank bolt for balancer install locally??
11-03-2007, 06:27 PM
#1
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Where to get longer crank bolt for balancer install locally?? Can I go get one from a local hardware store? I would like to get my $hit running tommarrow and this is holding me up
11-03-2007, 07:07 PM
#2
Ive read (and what i'm going to do with mine when i put it back on) is to heat the balancer in your oven at 200 degrees for about 30-40 minutes. Then slide it on and hammer with a block of wood. The metal will have expanded enough it can just be tapped on, atleast enough to get the bolt started.
11-03-2007, 08:40 PM
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hopefully so... when i did mine i had a bear of a time with it.... i ended up buying a foot long piece of threaded rod, then put two really long (1 1/2" long) nuts on it, one to press on a big washer on the pulley and the other one so i could get a wrench on it. it is hard to find a straight up bolt that is that size and length though, good luck!
11-03-2007, 10:05 PM
#5
I went everywhere. Ace, lowes, home depot, menards.... Even auto parts stores. No one i could find had the bolt any longer.
I had it in the oven for 45 minutes at 300 or so, and it didn't exactly tap on, but it did finally go on. Was not an easy install.
Headers, and 4.10 gear were both quicker installs.
Good luck, Chris
I had it in the oven for 45 minutes at 300 or so, and it didn't exactly tap on, but it did finally go on. Was not an easy install.
Headers, and 4.10 gear were both quicker installs.
Good luck, Chris
11-03-2007, 10:20 PM
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Yea I know I will be scrambling around everywhere in the morning trying to find something that will work, hopefully I can find some threaded rod like the guy above.....there is a "nuts and bolts" place down the street but they are only open M-F 
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11-04-2007, 07:20 AM
#8
I know you want to get it running, but a longer bolt is not the answer. Neither is heating. This part has several functions, the most important one is to damp the crankshaft harmonics. Heating it up too hot can damage the rubber that is used for damping, even a shift is characteristics of the rubber can cause harm. The damper has an interference fit, that is to say the hub inside diameter is smaller than the outside diameter of the crankshaft. This is to ensure the correct transmission of harmonics into the hub. As a result, the pulley needs to be pressed on and that is what you are dealing with. Using a bolt puts your crankshaft threads at risk, there are 100's of posts here on LS1tech, on Corvetteforum, on the GTO web site and LS1.com where guys have used longer bolts and totally messed up their crankshaft threads. Get the threaded rod, washers and nuts and install it using full thread engagement. You will be kicking yourself later because your current approach can lead to bigger problems down the road. Sorry to be a pain, but I hate to see you posting that you have buggered threads in a few days or a broken crankshaft in a year or so.
11-04-2007, 09:21 AM
#9
^^This is true, I was one of those guys. The longer bolt method worked fine a few times and then after I seated the old crank bolt and tried to take it out. It was hard as hell to loosen and it tried to shear the end of the bolt off. I finally got the bolt out and it was not pretty. I had a guy from a machine shop come buy to fix my crank threads. Don't go through what I went through, get the damn threaded rod.
11-04-2007, 09:25 AM
#10
Due to the inability of the giant hardware stores to carry any odd ball size hardware, I went and found a website that sold me a threaded rod, I cut down to size and with washers and nuts I drew on the UD pulley with ease on my LT1 car and it has been used on LS1 cars. If and when I do it, thats what I will be using. I have heard of the heated up pulley trick too, that works as well.
11-04-2007, 10:37 AM
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Just to let you guys know I went to ace hardware and they DO have the correct size threaded rod, I have to go back now to get bigger washers.....its not the hardend rod as above but the steel rod which I think will work fine, I will let you guys know how it works in a hour or 2...
11-04-2007, 10:51 AM
#14
Just to let you guys know I went to ace hardware and they DO have the correct size threaded rod, I have to go back now to get bigger washers.....its not the hardend rod as above but the steel rod which I think will work fine, I will let you guys know how it works in a hour or 2...
