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Old 02 February 2014, 06:34   #1
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Slippage

Monterey/Trooper 3.1 td 1998 manual with lsd

I've never had clutch failure in 30 years of driving so don't really know what a slipping clutch would feel like. But been noticing a problem yesterday.

On occasions when in a high gear and needing to accelerate the engine revs increase a little without a noticeable increase in speed, kind of how an auto behaves or when you're wheel spinning a little. I tried to induce the same conditions that the slip was occurring whilst driving and couldn't. It just seems to happen randomly which which I find a little odd. This is why I tried the extreme measure of engaging the clutch whilst parked up and dumping the clutch at 1500rpm. It stalled! Can I presume this isn't a clutch problem? There seems to be nothing else wrong with the car, no unusual noises or smells.

I am wondering if there is anything else in the drive train that might cause a slipping. Perhaps the clutches in the LSD
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Old 02 February 2014, 07:44   #2
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Sounds like clutch 'slip' to me, drive up a incline, selecting a higher than normal gear and floor it - really loads up the clutch , if the revs increase and the vehicle speed doesn't you've got clutch slip. Might just be adjustment but normally the fiction plate is worn out
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Old 02 February 2014, 12:35   #3
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It does sound like clutch slip to me.

Does it happen at about the same revs as the turbo cuts in?
Could be the extra sudden load that's overcoming the grip.

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Old 02 February 2014, 12:44   #4
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I've been out today and driven up as many hills as can find in as high a gear as possible. Not one bit of slip! One thing I did notice was that I don't have to depress the clutch pedal far for it to start disengaging. So the bite point is quite high. Looks like a new clutch soon then!
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Old 02 February 2014, 14:06   #5
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Quick way to find out andy. Get too 60mph press the clutch. Bring revs up to say5k and let the clutch go quickly. If it grips and jolts you. Thats fine. If it slowly catches up and or even revs up to a full blown slip then its new cluch time.
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Old 02 February 2014, 14:08   #6
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As the cluctch is possibly on its way out. You will find the bit point will get higher and you also might notice burning frition plate smell. Like cooking brake pads.
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Old 02 February 2014, 14:11   #7
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I got given a nasty company car once .and to completely blow the clutch, i got to 70. Stick it 5-6 gear. Dump the clutch and rev it till the valves cry out for mercy and let the clutch go repeatedly. He he. Soon got rid of the nasty car!!
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Old 02 February 2014, 14:30   #8
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All seems a bit harsh, try taking off in second with h,brake on or travel up a hill in top and watch rev counter, if speed stays the same but rpm climbs its the clutch, some times you can stall using the clutch but it can still slip on a hill etc.
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Old 02 February 2014, 17:40   #9
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It's a hydraulic clutch on the Trooper/Monterey. It could possibly be contamination or air expansion in the fluid not allowing the clutch to engage fully.
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Old 02 February 2014, 18:35   #10
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Quote:
Originally Posted by Nos4r2 View Post
It's a hydraulic clutch on the Trooper/Monterey. It could possibly be contamination or air expansion in the fluid not allowing the clutch to engage fully.
I had a similar sounding issue on the landy recently. A top up with clutch fluid sorted it....
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