Harmonic balancer fell off when I started car the other day. Had been squealing. Can this job be done in driveway with the right tools?
2007-10-30 05:06:14 · 5 answers · asked by Deeter B 2 in Cars & Transportation ➔ Car Makes ➔ GMC
Just to clarify, the entire pulley did not fall off, just the top part where the belt runs. Looked the rubber lining that connects to the pulley melted off/cracked. Thanks for any assistance.
2007-10-30 05:09:13 · update #1
I own a shop, and think this; First off I would NEVER hit the balancer with a hammer to put it on with. The end play on the crankshaft is controlled by the side face of the main bearing, and if you damage it, you will be replacing the engine. Notice when you rev an engine up, the crank moves forward a little, and the main bearing not only holds the crank in position, but controls how much end play the engine has. The center bolt is really tough to get out, and if you don't have an impact wrench, then you probably won't get it out. Once you get the bolt out, you must have a puller to get the balancer off with, but you can probably rent one at Auto Zone if you don't have one. It's a good idea to replace the seal sense it probably beat it out when the balancer came apart. This seal is pretty hard to change with the engine in the vehicle. Use a long screwdriver to get between it and the crank, and you can pry it right out. You will need a pipe, or something that will go over the crank, and fit the outer edge of the new seal in order to drive it in straight. Most shops have a special seal installer for this job. You will want to polish the crank with some 400 grit sandpaper, clean it good, and put some lubricant on the seal, and the hub of the new balancer. Get it started, and use a bolt that will screw into the crank, that is long enough to put a nut, and a big washer on. Use the nut to push the new balancer on with. You don't want to beat on it for a couple of reasons. One; I already talked about the main bearing, and two; you could damage the new one if you beat it. Once you have it pulled on, then you can tighten the bolt in the center with an impact wrench as if you were tighting a lug nut. Its a good idea to use anti/seize on the bolt too. The difficulty of this job on a scale of 1-10 is about an 8, so it may be better to have a shop (that is equipped to handle the job) do so. I have seen some that had to be cut off with a dremel tool, or grinder because they just wouldn't come off. If its broke already, then you may have to do that, so that is another reason to not want to do the job.
Glad to help out, Good Luck!!!
2007-10-31 07:21:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It's not that bad. You usually have to release and remove the serp belt, but apparently yours is already off. Lift RF wheel and remove. Remove the splash guard plastic inside to access the crank pulley. Use an air or electric impact to remove the pulley bolt to the crankshaft. Install a puller onto the balancer and twist off. To install, punch a new seal into cover, lube seal and the hub of the new balancer and wiggle it as far on as you can while lining up the dowel pin with the balancer. Then install a piece of wood on the balancer and whack it on until it bottoms out with a hammer to the wood. Re-install everything else.
2007-10-30 14:31:06 · answer #2 · answered by Deano 7 · 0⤊ 1⤋
its not very hard if you know what your doing first check to see if the harmonic balancer has a bolt in the center bolted to crank shaft if it does probably does this as to be taken out need to find a way to stop the crank from turning when extracting when you have the bolt out you will need apuller to pull balancer off shaft be care full not to loose the key they call it a half moon the crank has a slot so does the balancer .in installing it just reverse it going back .when you are ready to install your bolt the harmonic balancer will slide down the shaft as you tighten when it bottomes out an you think the bolt is tighten then you need to torque it need to find out how many Pd's to put in wrench don't remember
2007-10-30 12:50:54 · answer #3 · answered by the o2 sensor is also called oxy 2 · 0⤊ 1⤋
will nweed a large air compressor most do it yourselfers dont own big enough one if you get the bolt off its a breese
2007-10-30 12:49:36 · answer #4 · answered by jpattonfamily 5 · 0⤊ 1⤋
Go to Auto Zone and they will help.
2007-10-30 12:24:07 · answer #5 · answered by (A) 7 · 0⤊ 1⤋