View Full Version : Changing harmonic balancer
Ok im gunna change my harmonic balancer on my 202 becasue it has worn out and sliped. How should i go about this?
I think im ok with changing it, i just want to know how to put it in the right position and how to get all the timing right?
Any help would be great..:)
Ohh also where would i go to buy a new one? and where would i get a puller to get it off???
There's a dirty big woodruff key ensuring the new balancer can only go on one way. You can get a new balancer and a puller from repco for a few bucks. You will need to pull the radiator out to get enough room to pull the old one off, and you made need to remove more things to get it back on.
Ensure when fitting the new balancer you only strike the inner ring, otherwise you'll tear the vulcanised rubber between the two rings and stuff it.
13-05-02, 08:09 PM
The right way to put the ballancer back on is with a balancer install tool, which you can also get at repco or make your own out of some washers and a bolt that fits into the hole in the crank. check out the ones at repco to get an idea of how they work.
Ok kool, thanks for that guys. Dosnt seem to bad.:)
My tafe teacher said i would have to get no1 cylinder top dead ceneter, what would be ther easiest way 2 do this?
13-05-02, 08:33 PM
no need to worry about TDC (Top Dead Center) unless the key on the crank is stuffed (and if it is there is something majorly wrong)
However if you want to get it to TDC, remove the dissy cap and turn the engine until the rotor button is pointing where no1 lead would be. Then stick a screwdriver or something similar down the spark plug hole of no 1 cylinder until it touches the piston. Turn the engine until it is at it's highest point.
Personally I would rip it apart and check your timing chain etc before you buy the parts.
i odubt you will be able to get it ondone even with the longest breaker bar, you wil need to take it to someplace and get them to rip it off with a rattle gun, when you buy a puller get a 3 pronged one, they are about 20-30 bucks from supercheap and when you use it dont put the threaded part straight in the threaded hole, put a socket the same diametre as the shaft in there and put the threaded part of the puller in the socket so you dont damage the thread on the shaft.
13-05-02, 09:47 PM
On all the Holden 6's (L6) that I have seen, the harmonic balancer has been a press fit. No retaining bolt, also cam is gear driven not chain
I just recently changed the balancer on my VC 202.
I used a mates balancer puller to get it off. If the balancer is very tight, then as you are doing up the puller, tap the bolts that go into the balancer, this seemed to help a lot for mine. A puller is about $10-15 from a cheap parts shop I think.
I changed the oil seal while I was at it. It's $2.50 for that one.
I had to remove the radiator to get enough room, but I didn't need to remove the a/c condensor, I just put a bit of plywood behind it to make sure I didn't damage it during the whole excercise.
The is no thread in the end of the crank, so the only way to get the balancer back on is to hit it back on, preferably with a bit of wood or a rubber mallet or something to reduce your chances of damaging anything. I didn't have room to do this however.
Powered by vBulletin® Version 4.2.0 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.