Jump to content
SAU Community

Recommended Posts

Hey I'm trying to remove the nut in the centre of the harmonic balancer with a power bar, I just want to make sure it needs to be turned anticlockwise because I know I've removed one on another car that was backwards(it needed to be turned clockwise to loosen.

Cheers ,

Steve

yep its a normal bolt. letft loosy, righty tighty.

could be vft though

they are VVVFFT (very very very f**king f**king tight) if its never been out before.

believe its 140-150 ft pound 14-15kg

get a steel pipe on the end of your breaker bar. if u got a flywheel lock use that or if your ghetto put a bolt in the block where the box would bolt up and pivot off it using a screwdriver slotted into the flywheel teeth. both methods work :D

cheers

they are VVVFFT (very very very f**king f**king tight) if its never been out before.

believe its 140-150 ft pound ....

even worse on gtr, 400lb/ft. for some reason gtst is only 150 odd.

A good way of doing this is...

position ur breaker bar so its leaning on the ground put the key in the iginition and turn her over. The car will un do it for you.

Only attempt this if you are confident...im sure they didnt need to be said tho.

http://www.enginebuildermag.com/Content/Si...00000006981.jpg

Use the right tools and to it properly.

You can get a hammer-tool and socket, place socket onto bolt, hammer-tool into socket (dont know it's actualy name or I would have put up a picture, but it's got an arm about 10cm long, then another arm from this about 80cm long, you hammer the longer arm and it shock-loads the bolt right at the thread).

Or you use a tool like in the picture above, where it holds the harmonic balancer from turning, and the 2nd arm is used against the harmonic balancer's locked pressure to turn the nut (uses SFA energy to crack the thread).

Reason you dont place the car in gear, or use a fly-wheel lock is because your then placing all your force down the length of the crank shaft, and if your hitting the bolt, using a rattle gun, etc your placing shock-loads onto the crank and potentially damaging the crank.

Reason you dont use the starter is for the same reason.

Dont get me wrong, these methods work, but they place un-due force on the internals of the motor, and 'could' cause potential failure points in the future.

EDIT: Almost forgot, USE FLAT FACED SOCKETS!!!! Dont use the milling grip sockets, you will almost certainly round the nut, and then be stuffed!!!

Edited by turbo_brian
  • 1 month later...

You can remove the starter and use a screwdriver to lock the flywheel before using a breaker bar. I still couldnt loosen it first time, but you may be able to. This worked after I loosed everything up using the method below.

I ended up using an electric impact gun. It removed it easily and effortlessley. I tried the first procedure for 2 days and started to go mental over the one bolt holding me up. Use a proper impact bit and it'll absorb all those nasty 'shock loads' (crank can handle it no probs anyway).

Use a proper fitting socket (full hex/flat face) as mentioned

Also as above bush mechanic style, you can use a breaker bar on the bolt and brace it against up against the chassis and crank the motor over with your starter. I would recommend against this though as the starter will give way before the crank

Edited by Jmaac
I bought a breaker bar and smashed it as hard as I could but no go, not sure what to do with it now?

you get a longer breaker bar!

easiest way to do that is put a long jack handle / pole of some sort over the breaker bar. Once you get to 1-2m long you will have enough leverage to undo it

you get a longer breaker bar!

easiest way to do that is put a long jack handle / pole of some sort over the breaker bar. Once you get to 1-2m long you will have enough leverage to undo it

I've had a couple where I have had to put a bicycle innner tube around the balancer and then a chain from the balancer to the front tow hook and then wrap a racket strap bloody tight around the inner tube and chain. This is the only way I could get two engines bolts to crack with a 3/4 drive breaker bar and a pole with two people.

There was to much flex in the drive train and couldn't get it to stay still any other way. It would just turn with the purchase. Some are bloody tight!

  • 1 month later...

Hey guys,

I still have not been able to get this off due to time and this thing being f%$king tight. How did you guys fit an impact gun in the engine bay?? I have the radiator out but theres not enough room to get my air impact gun behind the pulley.

Cheers,

Steve

sadly having it done up too tight it still far better than the ones that are not done up tight enough and come undone!!! d'oh! happens a lot and is sometimes an easy fix and sometimes will cost you an engine.

with the right leverage you can undo most things. i had to put my car up on a hoist, attach a very long steel bar to the breaker bar, get underneath the car, and get two people to swing off it. not the most professional way of doing it, but it worked.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
×
×
  • Create New...