| Author |
Message |
JohnR. (Rivee)
Junior Member
Username: Rivee
Post Number: 88
Registered: 1-2002
| | Posted on Saturday, September 07, 2002 - 3:02 pm: | |
Edward, Bill thaynks for the cleryifkation <lol> |
Bill V. (Doc)
Junior Member
Username: Doc
Post Number: 125
Registered: 9-2001
| | Posted on Friday, September 06, 2002 - 7:35 pm: | |
A cluych is a clutch with an accent--or tthe sign of a very bad typist. |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1883
Registered: 2-2001
| | Posted on Friday, September 06, 2002 - 4:38 pm: | |
It makes it easier to shyft. |
JohnR. (Rivee)
Junior Member
Username: Rivee
Post Number: 86
Registered: 1-2002
| | Posted on Friday, September 06, 2002 - 4:23 pm: | |
What's a cluych? <jk> |
Hans E. Hansen (4re_gt4)
Junior Member
Username: 4re_gt4
Post Number: 153
Registered: 4-2002
| | Posted on Thursday, September 05, 2002 - 12:11 am: | |
Phil: It's all in technique. BIG congrats on 140K on a Miata clutch. That's ALL driver, not some inherent magic-Miata-clutch-godly-ness. If we were all perfect (and Phil may be!!!), clutches shouldn't need replacing. Again, Phil, congrats. I'm jealous. You have great technique! |
phil hooper (Wolftalk)
New member
Username: Wolftalk
Post Number: 36
Registered: 5-2002
| | Posted on Wednesday, September 04, 2002 - 7:58 pm: | |
'80 308 made it right around 50K on what I assume is the original clutch. On the earlier 308 clutch setup you will get significant wear if there is no freeplay (as the clutch wears, the pressure plate moves away from the engine. Without freeplay, the PP contacts the throw-out bearing, and since the clutch pedal can't raise due to a mechanical stop above the pedal, the clutch pedal and cable keep the clutch partially disengaged. Eventually you'll
notice the clutch slipping, but you've probably taken off a bit of clutch disc by then)
308's that had the mod, QV's, and 328's all have the constant contact TO bearing, so there is no freeplay to worry about.
my 328 has 36K miles so far on the original clutch, but it appears I'm fairly easy on clutches. I have 140K miles on a miata with the original clutch - and before you assume I baby the cars, I believe the redline is there to tell you when to shift :-) |
Hans E. Hansen (4re_gt4)
Junior Member
Username: 4re_gt4
Post Number: 149
Registered: 4-2002
| | Posted on Wednesday, September 04, 2002 - 4:29 pm: | |
There was a service bulletin issued somewhare in the late 70's/early 80's regarding a new design pressure plate. The modifications needed to use it required the T.O. bearing to be in constant contact. If this design carried forward into the 328 era, then putting in neutral would do minimal for T.O. bearing life. It would help some, as the load would be less, but the bearing is still spinning. If anyone has questions, I can dig up the Bulletin #. |
Dave328GTB (Hardtop)
Junior Member
Username: Hardtop
Post Number: 230
Registered: 1-2002
| | Posted on Wednesday, September 04, 2002 - 11:32 am: | |
One way to increase throwout bearing life is to put the car in neutral with the clutch engaged when sittiing at lights.
308 clutches supposed to last 5K to 50K depending on driver.
Dave |
Lawrence Coppari (Lawrence)
Junior Member
Username: Lawrence
Post Number: 236
Registered: 4-2002
| | Posted on Wednesday, September 04, 2002 - 11:01 am: | |
I think clutch longevity depends entirely how you drive it. First gear in my 328 is the proverbial stump puller. I do not have to give it any gas to get the car in motion so there is little to no slippage. With the remainding shifts, some people are less smooth than others. Over thousands of shifts and applications of power before the clutch is fully engaged, premature wear occurs.
Throw out bearing life is unpredictable. |
Steve Magnusson (91tr)
Intermediate Member
Username: 91tr
Post Number: 1020
Registered: 1-2001
| | Posted on Wednesday, September 04, 2002 - 9:28 am: | |
I bought my ex-308GTS at ~70K miles (in 1987) with a "recent fresh clutch" and had the throw-out bearing seize at ~120K miles (in 1998) with about 1/4 life left on the disc, but the whole internal mechanism needed a good cleaning/relube. All depends how you define "normal" (and I'd agree with Matthew that a lot of premature failures could probably be traced to mis-adjustment, or maybe more accurately stated, "no periodic readjustment"), but I'd say somewhere in the 30K~60K mile range would not be unreasonable at all (especially if the time factor is getting up there too -- like > 10~15 years since the last refresh). I love the note in the 308GT4 WSM that says: "Periodically clean the release sleeve from the dust coming from the disc wearing." -- yeah right. |
Peter B. (Gts308qv)
Junior Member
Username: Gts308qv
Post Number: 229
Registered: 5-2001
| | Posted on Wednesday, September 04, 2002 - 8:27 am: | |
Without too much abuse, about 25 - 30'000. My QV needed the clutch done at 23800, but that included a previous owner who could not drive a Ferrari properly. I was told it should have gone a little further. |
Matthew Lemus (Mlemus)
New member
Username: Mlemus
Post Number: 49
Registered: 8-2002
| | Posted on Wednesday, September 04, 2002 - 8:21 am: | |
my 78 carb had the clutch changed @ 20,000 and I am on 44,000 now. ferrari looked at it last week and said I had "plenty of meat left". The big key is to keep your clutch adjusted. I do this every 6 months. |
Bill V. (Doc)
Junior Member
Username: Doc
Post Number: 122
Registered: 9-2001
| | Posted on Wednesday, September 04, 2002 - 6:45 am: | |
What lifespan can one expect from the clutch in a 308QV, assuming normal street use? Is there any significant difference between the lifespan of clutches in carbed models? |