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EF XR8 Harmonic Balancer 

 

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 Post subject: EF XR8 Harmonic Balancer
Posted: Mon Jun 11, 2007 11:28 pm 
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the balancer in the xr is up to s**t. vibrates the whole driveline from about 1500 rpm upwards :S. my question is; is there much of a difference between standard replacement and underdrives?

also would i need a puller to remove the balance or is it as simple as unbolting the four bolts and removing it?

any help is much appreciated. cheers

 

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 Post subject: Re: EF XR8 Harmonic Balancer
Posted: Mon Jun 11, 2007 11:38 pm 
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nannas_ed wrote:
the balancer in the xr is up to s**t. vibrates the whole driveline from about 1500 rpm upwards :S. my question is; is there much of a difference between standard replacement and underdrives?

also would i need a puller to remove the balance or is it as simple as unbolting the four bolts and removing it?

any help is much appreciated. cheers


The underdrive your referring too is the crankshaft pulley the belt rides on which is bolted to the harmonic balancer.

The harmonic balancer is the big hunk of steel behind it which has all your timing marks on it. This is used to dampen all the harmonics that come through crankshaft and is also obviously used for balancing.

You will need a puller to get it off the crank, but the belt you will have to get off first which is just four bolts.

If you need one cheap i have the one that has come off my motor sitting in the shed, only 114,000k's so should be alright, didnt cause any dramas before hand.
Thats if you need a cheap way out of it, if not for about $210 you can get a nice Powerbond one which is the same as what went on engine.

 

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Posted: Mon Jun 11, 2007 11:58 pm 
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under drive will only bolt to your balancer, which ever one you get, they cost about 280 from bpt in WA, this is the only place i can find them

 

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Posted: Tue Jun 12, 2007 12:20 am 
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You are in Vic ? So www.vpw.com.au should have them...

Ahh under construction!!! Ask for Burney

 

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Last edited by EBXR8380 on Tue Jun 12, 2007 12:24 am, edited 1 time in total.

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Posted: Tue Jun 12, 2007 12:22 am 
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nope, i already asked.

 

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Posted: Tue Jun 12, 2007 12:26 am 
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Ahh !! Rocket have them...

 

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Posted: Tue Jun 12, 2007 12:39 am 
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yeah, youve asked them?

 

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Posted: Tue Jun 12, 2007 9:58 pm 
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I have a second hand powerbond street one for $80 if you are interesed.

 

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Posted: Wed Jun 13, 2007 12:00 am 
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yeah but is it the balancer or the pulley, underdrive is the actual pulley the belt sits on, if its the pulley then yeah im keen
Thanks

 

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Posted: Wed Jun 13, 2007 12:29 am 
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psupernak wrote:
yeah but is it the balancer or the pulley, underdrive is the actual pulley the belt sits on, if its the pulley then yeah im keen
Thanks


Mate, its nannas_ed's thread. I'm pretty sure Trick Flow EL is talking to him about the balancer.

 

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Posted: Wed Jun 13, 2007 12:29 am 
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so if i understand correctly the balancer on the 5tr is a 2 peice not like the ones found on the 6cyl where its one complete unit.

does this mean if i buy a new unit from say repco i have to bolt my original pulley onto it???

thanks for the replys

 

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Posted: Wed Jun 13, 2007 12:32 am 
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yeah use your pullry, should be ok, nothing goes wrong wit them, sorry bout the missunderstanding

 

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Posted: Wed Jun 13, 2007 12:36 am 
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nannas_ed wrote:
so if i understand correctly the balancer on the 5tr is a 2 peice not like the ones found on the 6cyl where its one complete unit.


Yep that is 100% correct.

nannas_ed wrote:
does this mean if i buy a new unit from say repco i have to bolt my original pulley onto it???


Yep that is also correct, but for the price that Trick Flow EL is offering you the powerbond for, i'd be snapping it up and not even bothering with a std replacement from repco.

nannas_ed wrote:
thanks for the replys


No worries mate, anytime.

 

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Posted: Wed Jun 13, 2007 1:10 am 
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I recently bought one from Rocket..
Just be aware that 5.0 motors require 50 Oz ballance...

 

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Posted: Wed Jun 13, 2007 11:21 am 
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nannas_ed wrote:
so if i understand correctly the balancer on the 5tr is a 2 peice not like the ones found on the 6cyl where its one complete unit.

does this mean if i buy a new unit from say repco i have to bolt my original pulley onto it???

thanks for the replys


Correct. 4 bolts holding the pulley on the balancer.

Off with the belt and off with the pulley. You need to remove the retaining bolt and washer from the balancer... a big f--k off bolt that goes into the end of the crankshaft. Err... 24mm socket or thereabouts IIRC.

Balancer is keyed, so only goes on one way. Take note which way the pulley bolts to the balancer, as it CAN go on backwards... which will be interesting for pulley alignement :)

About $170 for a genuine ford balancer from motortraders/similar IIRC.

 

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