Slippage

Hightower · 02 February 2014, 11:34

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

Lee argyle · 02 February 2014, 12:44

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

Nasher · 02 February 2014, 17:35

HT

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.

Nasher

Hightower · 02 February 2014, 17:44

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!

matt h · 02 February 2014, 19:06

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.

matt h · 02 February 2014, 19:08

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.

matt h · 02 February 2014, 19:11

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!!

Jeff Hutcheon · 02 February 2014, 19:30

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.

Nos4r2 · 02 February 2014, 22:40

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.

willk · 02 February 2014, 23:35

Quote:

Originally Posted by Nos4r2

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....

Hightower · 02 February 2014, 23:38

Quote:

Originally Posted by Nos4r2

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.

That true. But checked fluid today and reservoir is as full as the day I bought it. The evidence is stacking up and I am beginning to think the end of the clutches life is close. I've also raised the clutch pedal up a little and see if that gets me to warmer weather.

Nos4r2 · 03 February 2014, 00:20

It's not right at the top brim full is it?

Hightower · 03 February 2014, 01:15

Quote:

Originally Posted by Nos4r2

It's not right at the top brim full is it?

No Matt, it's at the right level.

Nos4r2 · 03 February 2014, 22:18

Quote:

Originally Posted by Hightower

No Matt, it's at the right level.

Just askin'...Didn't think you were that silly, but had to ask

FWIW, I was sat around thinking today and I'm sure I remember my old Isizu Mu doing the same as yours a couple of times then sorting itself out.
Don't write it off as a bad lot til you notice some proper slip-mine was fine for 2 years of my ownership afterwards and was still ok when my mate sold it last year.

Hightower · 03 February 2014, 23:06

Quote:

Originally Posted by Nos4r2

Just askin'...Didn't think you were that silly, but had to ask

FWIW, I was sat around thinking today and I'm sure I remember my old Isizu Mu doing the same as yours a couple of times then sorting itself out.
Don't write it off as a bad lot til you notice some proper slip-mine was fine for 2 years of my ownership afterwards and was still ok when my mate sold it last year.

Thanks for your reassurance. Luckily I do a lot of short local journeys, so she's never that far from home. I will keep driving her till I notice something more significant.

Peter_C · 04 February 2014, 06:36

The clutch adjustment should be between 8-10mm of freeplay before there is any resistance of the clutch. Best felt with the hand. There will be a jam nut under the dash if it needs adjustment.

My test for clutches is as mentioned above, get going about 35-40mph in fourth gear, and with a heavy foot, quickly pop the clutch. It should rapidly drop back down in RPM. The amount of delay is the amount of slippage.

If it is slipping...well clutches can be expensive if done right!

Hightower · 10 February 2014, 00:40

Okay guys, done a little driving this weekend and clutch is defiantly on the way out. Tried that hill on the M27 with all the family on board....Was a good test!

Anyone recommend a garage in the local area (Fareham, Portsmouth, Southampton) that I could phone for a quote?

Peter_C · 10 February 2014, 00:47

As a service writer I try to never give quotes out over the phone as it is a waste of my time, since we are not after low price shoppers. Take a shops reputation/warranty and pay the price for quality parts and good service.

Festinghouse · 10 February 2014, 08:20

ive had my trooper for ten years now, and several times ive convinced myself that the clutch was about to die, only for it to sort itself. ive put it down to contamination of some sort on the flywheel / clutch.

Wightdiver · 10 February 2014, 09:18

Quote:

Originally Posted by Hightower

Okay guys, done a little driving this weekend and clutch is defiantly on the way out. Tried that hill on the M27 with all the family on board....Was a good test!

Anyone recommend a garage in the local area (Fareham, Portsmouth, Southampton) that I could phone for a quote?

Try Premier Brake and Clutch, mobile service based in Locks Heath, Rob 07880 928063. Used him for years and always had good service. Please do not distrub him this morning as he is working on my Freelander!!!!!

Good Luck

Andy