When the clutch goes.
Submitted: Sunday, Jun 19, 2005 at 15:10
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Footloose
You are 200K from the nearest town. You came away with a slightly sus clutch but thought it would go "a bit longer". The clutch slips, starts smoking in sand and suddenly you can increase revs but the vehicle just slows down. New clutch needed.
What to do ? Is it possible to jury rig something ? I've been told you can drive without one...I can't ...or can I ?
Reply By: Member - DOZER- Sunday, Jun 19, 2005 at 15:35
Sunday, Jun 19, 2005 at 15:35
You cant...if the plate frictions are all gone...you may be able to do some adjusting if there is any on the bellhousing actuator..you may even be able to cut up a belt and shove some leather in between the clutch plate and flywheel (with it adjusted akll the way up and a foot on the clutch) b4 letting it completely off and driving in first low...starting off on the starter.
Andrew
AnswerID:
116380
Reply By: Member - Davoe (Widgiemooltha) - Sunday, Jun 19, 2005 at 17:39
Sunday, Jun 19, 2005 at 17:39
dig it out and let your tyres right down have a think about it and by then with any luck the clutch ghas cooled down enough for you to limp to within 100k of town where you can call the rac + Sorry not much help only prson i have seen
cook a stuffed clutch in sandhills was a hilux recovering my campervan. He waited for it to cool down then remembered to select 4wd and still mananged to recover the camper and was last seen on another beach 80k away still nursing the clutch. I dont think they just suddenly let you down completlly but it would suck if you discovered it wasnt up to it 1/2 way accross the simpson
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Follow Up By: motherhen - Sunday, Jun 19, 2005 at 17:55
Sunday, Jun 19, 2005 at 17:55
Cute!
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Follow Up By: Member - Jeff M (WA) - Monday, Jun 20, 2005 at 14:21
Monday, Jun 20, 2005 at 14:21
My mate was driving his Pajero along a sandy track and went between
two hills (right at the bottom) and without even using his clutch it let go without warning.
A phone call to me and about 6 snatche attempts, 8 tyres at 10psi and some traction mats we got him over the
hill behind the surf, towed him out to the highway, switched over to the 9tone tow strap and towed him
home.
My other mate with his feroza did just what you were talking about, however it gave out as we left the servo after smoko halfway down to margaret river. One of the guys in our convoy managed to adjust the clutch cable which got it going again, it made it to
camp where it subsequently died again when he tried to move it to put his swag down. The solution to this one was a call to the RAC and a flatbed truck ;-)
So the answer IMHO is drive an auto! LMAO!
FollowupID:
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Reply By: Willem - Sunday, Jun 19, 2005 at 21:05
Sunday, Jun 19, 2005 at 21:05
Your clutch is stuffed!
Select 2nd or 3rd gear and crankstart your truck. Once on the move you can change gears by using the crashbox method by accellerating in that gear and then when the revs come down crash the gear in when you can to a higher gear.
Alternatively start your truck in second or third or fourth and stay there. Depending on the terrain it may be a slow trip but you will get there
AnswerID:
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Follow Up By: Footloose - Sunday, Jun 19, 2005 at 21:15
Sunday, Jun 19, 2005 at 21:15
Thanks Willem. Being mechanically challenged I would of thought that if the clutch facing was too thin/burnt to drive the engine normally, then it wouldn't make any difference i.e. You could start in any gear you like but forward momentum would be zero. No ?
(But I hope you're right :))
Good to see you on board again. You must still be rained in at Alice ?
FollowupID:
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Follow Up By: Willem - Sunday, Jun 19, 2005 at 21:43
Sunday, Jun 19, 2005 at 21:43
G'day Footlose
Yes it has rained in Alice but not enough to make the Todd flow. Staying here for a couple of weeks to do as few mechanical repairs and to relax from the rigours of going on holiday ...hahahaha
When your vehicle starts and the engine turns over, the gearbox is running as
well. The gear drive is connected to the engine via the spigot bearing in the flywheel. The clutch facilitates the changing of the gears and disengages the engine from the gearbox or vice versa during a gearchange. So when there is no clutch then you can crash the gear changes into place. Not the best method but it will work in an emergency.
If you need to be in 4x4 mode at the time then I would suggest crankstarting and staying in that gear until the terrain eases off.
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Follow Up By: Footloose - Sunday, Jun 19, 2005 at 21:50
Sunday, Jun 19, 2005 at 21:50
Thanks Willem, I will remember that. Lets hope I never have to use it, but handy to know. I suffered one clutch failure years ago and luckily it Just got me
home (but no further).
Don't worry asbout the Todd. I hear they still want to build a
dam there. AFAIK its been knocked on the head a few times but they still keep pushing it.
Well your oddassy is almost over.
Mine has yet to begin. I'm beginning to wish I'd of gone before the rain, as I'm not sure which areas have had how much rain. Ah
well, some will have dried out in 2 weeks...I hope.
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Follow Up By: Member - Davoe (Widgiemooltha) - Sunday, Jun 19, 2005 at 22:19
Sunday, Jun 19, 2005 at 22:19
Not sure of the mechanicals of it but I have seen 3 clutch failures (or at least badly worn The first was when doing work experience with a park
ranger on the EP and when checking out some of the cons parks on the way back to Lincoln it was as Willem describes, key start and crash changes. other was I n one of the POS work utes Centaur mining had and it was a matter of selecting first and feathering the accelerator as the clutch slipped and slowly gained momentum until you were at a high enough speed that it seemed to work ok and the last was the Hilux described above where the clutch on that slipped and smoked and stank without forward movement
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Follow Up By: Member - Jeff M (WA) - Monday, Jun 20, 2005 at 14:24
Monday, Jun 20, 2005 at 14:24
And if it's there's a lot of obsticals and a longish trip you'll be replacing your starter battery and possibly starter motor too!
But it's probally still cheaper than paying for a recovery!
My work car doesn't even need a clutch! LOL Work cars are cool.
FollowupID:
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Reply By: woddonnee - Monday, Jun 20, 2005 at 08:46
Monday, Jun 20, 2005 at 08:46
G'day all
I can't add much to the above, but just wanted to clarify the 2 basic scenarios.
1. If the clutch pedal operates the clutch ok but the clutch is no longer gripping, then the crash selection system won't make any difference.
2. If its the clutch pedal operation thats failed and the clutch friction is ok the crash style selection process is the go.
Hopefully that helps. I used to train drivers in the upgrade to heavy rigid licence, I used a 22 tonne crash gearbox vehicle. I was able to get all trainees to drive "clutchless" once they mastered the crash gearbox (2 day course, 3 trainees)
My father (RIP) taught me from my learner days double de-clutching (properly not the pretend version that most do) and clutchless driving. At one point in my truck driving days I only used the clutch pedal to start off.
cheers
Rod
AnswerID:
116489
Follow Up By: woddonnee - Monday, Jun 20, 2005 at 08:53
Monday, Jun 20, 2005 at 08:53
G'day again
I just fondly recalled a surfing trip when I was 16, 3 of us went to the foot of
yorke peninsula (around 300k's from
adelaide) in a friends EH holden 3 on the tree, the clutch pedal system failed on our arrival. I ended up driving around for the 3 days to all the surf spots and back to
adelaide. Thanks dad
Geez, I once bought a an FC Holden wagon with no brakes and no clutch pedal operation and drove it
home.
Young and foolish :-)
cheers
Rod
PS sorry for dribbling on
FollowupID:
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Reply By: fourstall2000 - Monday, Jun 20, 2005 at 08:56
Monday, Jun 20, 2005 at 08:56
I think somebody is kidding you.
The spigot bearing does not drive the gearbox as stated.(it is only a shaft support)
The only drive is via the clutch plate,this friction drive is provided by the spring pressure of the pressure plate.
When your clutch linings wear out , the friction pressure of
the springs are greatly reduced due to the loss of thickness of the linings.
This allows the clutch to slip.
Some times when the clutch is overloaded the linings overheat and cause slip,often this will improve when the linings cool down, and with clutch use the glaze is removed,however if the linings are already worn burning the linings will often be the last straw.
However in most circumstances some linings remain ,enough to limp
home if you use lower gears to reduce clutch loading.
Regards
AnswerID:
116493
Follow Up By: Member - Collyn R (WA) - Monday, Jun 20, 2005 at 12:30
Monday, Jun 20, 2005 at 12:30
Willem
Am I reading your post incorrectly? If there's no clutch plate left because it's burned or worn out there's no friction and hence no drive.
Your explanation is only valid where there's friction but no clutch movement. Then, you start by engaging first gear, engage the starter and drive away. It IS possible to change gears but it helps a lot if you've grown up driving vintage cars or trucks with non-synchro boxes.
Technique is to ease the accelerator and simultaneously move into second etc. It's also possible to change down but this needs a heap of practice. You ease the accelerator, slip into neutral, take foot off clutch, increase engine revs and simultaneously slip into the next lower gear. Get this right and it slides in like a hot knife in butter. Get it wrong ....
I do this routinely in the OKA (but grew up with a 1927 Bentley so am very used to it).
Collyn Rivers
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Follow Up By: Member - Jeff M (WA) - Monday, Jun 20, 2005 at 14:26
Monday, Jun 20, 2005 at 14:26
The other main clutch failure that I've seen is the Thrust bearing, which can bleep ter crap all over the inside of the clutch and makes some really cool noises,
well their cool when it's somebody else car anyway! ;-)
FollowupID:
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Follow Up By: BenSpoon - Monday, Jun 20, 2005 at 14:54
Monday, Jun 20, 2005 at 14:54
Cool noises... like someone skinning a bloody loudly screaming cat under your bonnet.
aah the looks from pedestrians when driving through the city...
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