New LS7 clutch running in , BUT

[TimMonaroVXR]

new clutch installed and done about 100 miles so far

Had the low bite, and is improving

The only thing that i noticed is there is a very slight not loud bearing sound when i have clutch connection to flywheel ie pedal up and goes when press pedal down

The pilot and the slave were replaced with new and new ripshift

Which bearing is this ? and what is acceptable amount of noise whirring or will i need remove gearbox again as something faulty

I hope its just a wearing in thing and will improve

My guess is the pilot bearing is slightly faulty Hope not Has anyone had this and can you give advise what i should do

[vxr2010]

it sounds like it could be your gearbox , unless it’s quite bad it’s fairly normal to get gearbox noise , is your rubber gear surround in one piece or torn , plus it may not be sitting properly if a different shifter was put on or it’s not been put back on correctly

[TimMonaroVXR]

Its in one piece as original Could this cause the gearbox make a noise if it is that or is it merely about noise coming into cabin?

When i put on ripshift the ball sat in the cup and did up the 4 bolts Can this be done incorrectly?

Is there some ways to test where the noise is coming from?

[Lincsls1]

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[mfp4073]

When I had my LS7 clutch fitted I did not experience any of the low bite you describe,In fact the pedal was perfect and hasn't changed at all.
If you have had the pilot bearing and slave cylinder fitted it's unlikely they are faulty, I'm thinking maybe the clutch fluid needs bleeding again? If you had a quick bleed line fitted it's a couple of minutes to do.
The noise from the gearbox could be a damaged rubber cover/ seal around the gear lever, I replaced mine and also added some sound deadener around the transmission tunnel.
Obviously I'm no expert but the low clutch bite maybe the root of your problem?

[Aitch H]

Thrust release bearing? Unless that’s what you’re referring to as the pilot bearing, never heard it called that before myself though.

[maccavvy]

Low bite is normal. I had mine done a few weeks ago and it's loads better now
Pilot bearing is USA speak for spigot bearing .
I've had no noise from mine. And it's all new and I have a ripshift

[RipGMH]

Aitch H said:

Thrust release bearing? Unless that’s what you’re referring to as the pilot bearing, never heard it called that before myself though.

I’m used to it being called the thrust bearing also. May be a tolerance issue on fit up the description sounds like the thrust bearing, noisey with clutch engaged (pedal up) noise stops when disengaged (pedal press down).


Qns for all, how does the LS7 clutch feel vs a standard clutch? Same with the ripshifter.

My clutch grabs just after lifting the foot and doesn’t feel to heavy. Gears feel nice and tight between changes

[vxr2010]

i used part of an old wet suit to keep the g box noise down , b and m shifter fitted , shifter is a good mod , the ls7 handles power a lot better and very little difference in clutch pedal weight , i’m still thinking noise is gearbox related if it’s the thrust bearing it can be worse when half depressed , if it’s in neutral and noise is the same irrelevant to clutch position then probably box

[Davep24]

My gearbox makes the bearing whirring noise with the clutch engaged. Pretty sure it's normal as the input shaft is rotating. The noise is more noticeable due to the gearbox location.

I have a b&m shifter and because the rubber seal on trans tunnel ripped when I installed it the noise is louder.

[maccavvy]

@ tim

when you say slave and pilot.. do you mean release bearing or do you mean pilot/spigot baring

they are well known to chew up pilot/spigot beaing in the crank and cause gearbox damage which leads to noise.
usually the input shaft bearing

[fred bloggs]

The LS7 Flywheel is heavy though.

[TimMonaroVXR]

Two separate parts

The spigot or pilot bearing, and the other one is the slave or release bearing

When in neutral at standstill i can hear the noise when clutch up but disappears when i press clutch down When running i can hear it i think but with noise of engine hard to be sure

I am very sure its the slave throw out bearing from my research that is faulty The pilot would be noisey if it was faulty, when you push the clutch down fully

The input shaft is a slight possibility but unlikely because before clutch installation no noise at all and not any movement at all in this when i checked it

The rubber boot went back but not the small black boot

Is there any other tests i can do?

I will bleed again but i heard alot of threads where the clutch bit low for a few hundred miles after clutch work and then adjusted itself

Is anyone down my way could have a look

[Capri_Ghia]

Funnily enough I've noticed the same sound since having an LS7 clutch fitted to my Monaro.

When the car's in neutral with the clutch engaged (pedal up) there is a quiet whirring noise that goes away as soon as I depress the clutch pedal. It's not noticeably there when in gear and moving. I had a new slave cylinder and spigot bearing done at the same time at Walkinshaw's so I've always assumed it was just gear box noise?

I've done a good few thousand miles since and the sound is no better or worse. The clutch operates fine and gear selection is ok.

Let us know if you get to the bottom of it.

[TimMonaroVXR]

Sure

Can you have a word with walkinshaw see what they say about it and let me know

They have good reputation

[omalley34male]

Capri_Ghia said:

Funnily enough I've noticed the same sound since having an LS7 clutch fitted to my Monaro.

When the car's in neutral with the clutch engaged (pedal up) there is a quiet whirring noise that goes away as soon as I depress the clutch pedal. It's not noticeably there when in gear and moving. I had a new slave cylinder and spigot bearing done at the same time at Walkinshaw's so I've always assumed it was just gear box noise?

I've done a good few thousand miles since and the sound is no better or worse. The clutch operates fine and gear selection is ok.

Let us know if you get to the bottom of it.

When you have the clutch pedal up the clutch is engaged and turns the input shaft in gearbox that makes the noice
when the pedal is pressed down the inputshaft in to the gearbox doesnt turn and no noice ..
i will look for bad bearings in the gearbox inputshaft

[ShavedBadger]

fred bloggs said:

The LS7 Flywheel is heavy though.

Very. I put a Fidanza aluminium flywheel in when I did mine, which brought the weight back to pretty much the same as the stock assembly.

[vxr2010]

An old thread ? , i will put my two pence in any way , don’t assume that if things are noisy in the gearbox department that you have an issue , took mine when i bought it to the Fish ,,, no that’s normal , it’s still running .. fingers crossed lol .. 9 years later , ls7 is slightly heavier but a great mod especially if you are running extra grunt

[omalley34male]

vxr2010 said:

An old thread ? , i will put my two pence in any way , don’t assume that if things are noisy in the gearbox department that you have an issue , took mine when i bought it to the Fish ,,, no that’s normal , it’s still running .. fingers crossed lol .. 9 years later , ls7 is slightly heavier but a great mod especially if you are running extra grunt

Yes im with you on that depends what noice level ;o) mine has some noice to and i just change oil and its no 7 years i think