Opinions please!
Discussion
Do I have a clutch problem? Archie Moss Vauxhall (Loughborough), recently had my gearbox out and replaced some clutch bits. Master cylinder, slave cylinder but not the clutch itself. Warranty job diddnt ask for the details so wasnt told. All seems well until the obligatory Monaro versus allcomers challenge drag between roundabouts on the A46! Full power through most of the gears then hard on the anchors for the rounabout, change down to find that the clutch feel has changed completely. the pedal is heavier than usual and only travels half the normal distance. The gear is changed pefectly well and indeed the next application of the clutch pedal brings things back to normal and usual excellent service is resumed. This quirk is only apparent during `ahem`enthusiastic driving! Moderatly quick doesn`t do it. Only big bootfull of welly makes this happen. Wha`d ya think?
On a separate note the AP`s should have gone on on Friday, but LSV had to reschedule me due to supply difficulties with the manufacturer. This week perhaps!?? (Mark, Doug)
She who must be obeyed asked me what I wanted for my 50th on the very same day that Mark from LSV called me to say that they could supply a supercharger kit for my car!! Can`t remember the price he quoted cos I got excited and the brain faded. But think I feel a power boost coming on.....
Big Col
On a separate note the AP`s should have gone on on Friday, but LSV had to reschedule me due to supply difficulties with the manufacturer. This week perhaps!?? (Mark, Doug)
She who must be obeyed asked me what I wanted for my 50th on the very same day that Mark from LSV called me to say that they could supply a supercharger kit for my car!! Can`t remember the price he quoted cos I got excited and the brain faded. But think I feel a power boost coming on.....
Big Col
Sounds familiar.......
Check your clutch fluid resovoir to see if it's full of black gunk. if it is, then you've boiled the fluid and (unless you're a mechanical Guru) you'll be off to the dealer to have a fluid change (£50 ish).
If not, then I'd be taking it for a checkup anyway.
Tell us all how you get on
Check your clutch fluid resovoir to see if it's full of black gunk. if it is, then you've boiled the fluid and (unless you're a mechanical Guru) you'll be off to the dealer to have a fluid change (£50 ish).
If not, then I'd be taking it for a checkup anyway.
Tell us all how you get on
if you have boiled the fluid in the clutch
this is the water turning to steam which you compress with your foot
if the clutch fluid has water in it
it is likley the brakes have too
change all the fluids at the same time
boiled brakes mean no brakes when you need them
better safe than sorry
this is the water turning to steam which you compress with your foot
if the clutch fluid has water in it
it is likley the brakes have too
change all the fluids at the same time
boiled brakes mean no brakes when you need them
better safe than sorry
.....nice 'Roman' (straight) road !Yes, the A46 near me is good for the Monaro, but until I get to the bottom of this clutch glitch I will have to go easy.
The clutch fluid has been changed by the dealer and I am still encountering this problem under high loads. The brakes seem fine, but am changeing them to ap racing shortly anyway.
I`m afraid I am not good at the `mechanicals`. I just need info so I am better equipped to talk to the chaps at LSV.
The clutch fluid has been changed by the dealer and I am still encountering this problem under high loads. The brakes seem fine, but am changeing them to ap racing shortly anyway.
I`m afraid I am not good at the `mechanicals`. I just need info so I am better equipped to talk to the chaps at LSV.
The clutch fluid goes black within days of changing it. I`m told this is usual(by Linden Special Vehicles) with these cars and not to be too conerned by the black colour. Doug gave me a reasonable explanation on the phone, something called clutch push back. I must say that the `problem`, when I encounter it seems very uniform and like it is supposed to happen like that. No spongeyness or anything like that. I am told that the chaps at LSV have seen this on older Holdens.
hey i had the same problem - LS2 VXR no clutch at high revs Greens changed fluid and drilled a small hole in the clutch res and problem gone away they ( greens) suspect res gets into a vacuum problem at high revs and drilling the hole stops this happening....i'm a happy bunny thought it was a new clutch !
ringram said:
The drill hole mod is well recommended even by GMM who make the Rip Shifter as an essential mod.
I agree with "ringram" here,
Dis-colouration of the fluid won't cause what you have described. Especially when you say it returned to normal after the first or initial instance of the problem/occurance.
The best fix for any of these cars is to buy and fit a braided stainless-steel fluid-line that runs from the master cylinder to the slave.
This problem was discussed on LS1.com.au quite a few years ago and details about it can be found if you want to search on the site.
I had similar problems, and found a write up by the yanks that indicated a deliberate restriction in the clutch feed by GM engineers to prevent drivetrain snatch.
On engagement of clutch the fluid restriction prevents the clutch from snatching the drivetrain, but drawback is that the hydraulics 'store' clutch engagements which can lead to hard pedal and excess slip....seemingly some people have experienced seconds worth of useful clutch during good runs and an expensive replacement...
A well, a good excuse to go for a lightened flywheel etc.
Eric
On engagement of clutch the fluid restriction prevents the clutch from snatching the drivetrain, but drawback is that the hydraulics 'store' clutch engagements which can lead to hard pedal and excess slip....seemingly some people have experienced seconds worth of useful clutch during good runs and an expensive replacement...
A well, a good excuse to go for a lightened flywheel etc.
Eric
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