New clutch for GU

Hi Dave,
It's done 200,000, but the main problem is that it drags, making selecting gears difficult. It's been doing this on and off since about 100,000, but it's getting bad now.
While it was still under warranty it played up; Nissan reckoned it was wear and it wasn't covered. Funny that it's done another 100,000 since then!
I suspect the main problem is the spigot bearing, but since the gearbox has to come out, the whole clutch will be done ,esp at that mileage. It certainly isn't slipping.
I've already replaced the clutch master cylinder on the off-chance that that was the problem. No change.
Gerry

Thanks, Nick
As per my comments to Dave above, it doesn't slip or shudder, just drags. Tried lengthening the shaft as much as I could without closing up the gap, but no change.

Hi Robin,
Yes, have to agree that the original clutch has lasted the distance as per my comments to Dave above, and I suspect the spigot bearing is the culprit, not the clutch.
Will give Nissan a ring anyway just to check the cost. My mechanic reckons he'd go for the Nissan one, but obviously, if I can get a replacement which is just as good or better, but somewhat cheaper, then that's the way I'd prefer to go. It's just that Nissan's prices are a bit rich.
The bottom line is, I guess, that with the high labour cost on this job, it's silly to skimp on the parts. I just want to make sure that I choose the best replacement.
Gerry

Robin, absolutely the added pressure on the master and slave system components is also a good reason to not purchase a cheap HD clutch. If they increase the clamping pressure by increasing the pressure plate springs then the chance of a hydraulic failure is increased significantly.

A good HD clutch will build into it more clamping pressure with the spring medium and compensate by changing the pivots as well.

I fitted two clutches to two identical 2.8 TD Isuzus..one Safari (Exeddy) and one standard and the operation and feel are miles apart....love the Safari one!

Matt.

Hmmm, looks like a Nissan clutch kit is very similar in price to an Exedy.; ie, around the $750 mark. A Safari Tough is about $200 more. The Adelaide Clutch, HD is a smidge over $600.
Might go for the Nissan version.
Gerry

I think the Nissan clutch is about $600 over the counter, The standard clutch is good value, mine has the original and has 250,000ks now and works fine and my old GU, 99 model 4.2td original clutch has just been changed at about 380,000KS Michael

Well Gerry, ya need to let your fingers do the walkin'.........

Earlier this year I bought a Exedy Safari Tuff kit (TD42T) for $630.00 "walk away, no more to pay" from my local brake & clutch place... from memory, the dearest quote (for the exact same part#) was in excess of $800.00..........

The reason I changed it was that a few weeks before a planned desert trip, I'd discovered oil weeping from the bellhousing:((
You guessed it.. rear crankshaft oil seal.. BUGGA!!

OK, since I needed to fix the oil leak anyway (as a matter of urgency), and since I'd "smoked" the clutch on a couple of occasions prior, I reckoned it'd be a good idea to replace that as a matter of course, even though it was showing no signs of slipping, though it had developed a noticeable shudder, mainly in reverse...

As it happened, the original showed no signs of wear (at 150K), w/- no discernable difference in thickness between it and the new one..
There were some scorch marks on it though, as well as on the pressure plate & flywheel, which I had machined out of the flywheel, of course...

All in all, I'm happy with the Exedy clutch.. pedal pressure is no more (if anything, a little lighter), though Exedy claim superior clamping force, and I reckon "take-up" between gears is smoother.. more "seamless", if you like;-)

Would I go Exedy again? on current indications, most definitely!
(YMMV)

Regards, Ed C

Looks like my mech can get the Nissan clutch for a bit over $400+gst. What a markup for us mere mortals! I'll go with the Nissan one, as I've had 200k out of it.
But I must admit, I've heard nothing but good reports about the Exedy range.
Thanks guys
Gerry

Sorry, meant to hit Follow Up to the previous post. ^^^^^

Hi Steve,
Once I have actually pulled the box into gear, (ie, overcome the spinning shaft), the clutch works fine. No shudders, no grabbing, no slipping. It certainly seems like the spigot bearing. The clutch was doing this occasionally while under warranty (not warranty, all wear and tear, according to Nissan), and when Nissan took the gearbox out to fix 5th (about 120k), I asked them about the condition of the clutch and was told it was fine. At this stage, it was working ok, so I took no further action. But with both old and new gearbox oil, the fault is the same, only worse now.
Gerry