308 clutch question | FerrariChat

308 clutch question

Discussion in '308/328' started by reuven, Oct 25, 2007.

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  1. reuven

    reuven Karting

    Apr 22, 2007
    120
    Israel
    Hi,
    My clutch is on the way to die, it is slipping on high gears (3,4,5), I have 57K miles, do you think I have to change also the pressure plate or only the clutch plate?
    Thanks,
    Reuven
     
  2. miketuason

    miketuason F1 World Champ
    Owner Silver Subscribed

    Feb 24, 2006
    15,814
    Cerritos, CA.
    Full Name:
    Mike
    I would both while you're in there.
     
  3. Badman

    Badman Formula 3

    Mar 4, 2007
    1,116
    Gotham City
    Full Name:
    Bruce Wayne
    Usually a good idea to change out all of the clutch components at once: driven plate, pressure plate, and throw-out bearing.
     
  4. miketuason

    miketuason F1 World Champ
    Owner Silver Subscribed

    Feb 24, 2006
    15,814
    Cerritos, CA.
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    Mike
    If I were to do this on my car I would also replace the rear main seal and resurface the flywheel as this is the only time you can do this.
     
  5. Badman

    Badman Formula 3

    Mar 4, 2007
    1,116
    Gotham City
    Full Name:
    Bruce Wayne
    Never been in that deep on my 308, but if you're removing the flywheel you probably should do the pilot bearing too, no?
     
  6. chrismorse

    chrismorse Formula 3

    Feb 16, 2004
    2,150
    way north california
    Full Name:
    chris morse
    When I took my clutch out, I noticed a lot of difficulty moving the throw out bearing on the guide tube around the input shaft. When i got the bearing holder off, I noticed a lot of gauling on the tube and holder. After a lot of filing and emmory work it was smooth, especially after the lubriplate.

    This very noticeably reduced the clutch pedal effort.

    As long as you are in there, I would clean and lube the nylon cable pulley and its bearing too.

    I would second that vote for rear main seal, pilot, disc t.o. bearing and pressure plate. If there is any sign of wear or hot spots, a surfacing job would be nice too.

    If you are bucks up and want the engine to rev a little quicker, you could have a machinist lighten the flywheel a bit.(I had the wheel taken from about 15-16 pounds to 8 and had it balanced for about $400.)

    hth,
    chris
     
  7. Ken

    Ken F1 World Champ

    Oct 19, 2001
    16,078
    Arlington Heights IL
    Full Name:
    Kenneth
    I love shipwright's disease! I seem to recall someone who had to change a burned out bulb and ended up repainting the car.

    Ken
     
  8. chrismorse

    chrismorse Formula 3

    Feb 16, 2004
    2,150
    way north california
    Full Name:
    chris morse
    What the heck, as long as it is in the shop.............. :)
     
  9. Papa Duck

    Papa Duck Formula Junior

    Jan 16, 2006
    351
    Las Vegas, NV
    Full Name:
    Carl
    I just went through that with my 308. Took it in for belts and wound up with the engine down to the short block and replaced just about everything else there was to replace. Once the engine is out of the car it is sure easy to do a lot of things that you would not have thought of. One step leads to another...and another...and another. It got expensive, but it sure drives like it is brand new, maybe even better.
     
  10. Whiskeyman

    Whiskeyman Rookie

    Jan 28, 2007
    31
    West Chester, OH.
    Full Name:
    Mike Calvert
    While you are replacing the clucth, it would be a good idea to replace the "L SHAPE FUEL TANK TO FUEL PUMP HOSE WHILE THE BELLHOUSING IS OFF". It is very easy to replace with the bellhousing removed.

    I have a 85 308 GTSi with 7,680 miles and replaced the clucth this April. I noticed this hose on a previous FC post and thought it might be a good idea to replace when the clutch was removed. After the job was complete, the dealership gave me all of the old parts. The hose had a few surface cracks but was as hard as a rock.

    Regards,

    Mike Calvert
    Whiskeyman
     
  11. reuven

    reuven Karting

    Apr 22, 2007
    120
    Israel
    Thanks for your comments.
     
  12. ricrain

    ricrain Karting

    Nov 1, 2003
    213
    Dallas Area
    Full Name:
    Ric
    Make DAMN sure you put blue locktite on the flywheel bolts. I once saw a flywheel embedded in a 308 dash, having torn through the rear firewall and rear seat (the car was unoccupied, thank God).

    READ and use locktite correctly, e.g. a small amount on a CLEAN bolt AND where the bolt attached should also be clean.

    And they're right, you'd be crazy not to replace the $8 pilot bearing after going through all that work.
     
  13. PAT ORRELL

    PAT ORRELL Formula Junior

    Jul 18, 2006
    300
    Murrieta,Ca.
    Full Name:
    Pat Orrell
    When I had an oil leak we found the o-ring was not installed properly,so I was going to put a new disc and pressure plate, but the pressure plate turned out to be defective. I used the old one with new disc and to bearing and everything is working great. But I agree with the others do it all at one time it will save you money in labor in the long run.
     
  14. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
    NWA
    Full Name:
    Paul
    This is wierd. I was just thinking of this a few days ago when a fried and I were discussing clutches coming apart. And I suddenly imagined where the clutch and flywheel in in a 308

    I recall a school bus that blew a clutch leaving a traffic stop. Parts of the flywheel were found over 200 feet away after coming up through the floor and going out the roof. One chunk took a piece of the drivers foot with it on the way through.

    I dunno if its bolts coming loose, or imbalanced flywheel/pressure plate/clutch discs, or both, but at the revs a 308 is capable of hitting its not something to take lightly. The clutch should be balanced for at least 11K rpm just because its capable of being spun that fast
     
  15. grub

    grub Karting

    Jun 19, 2006
    101
    Sydney OZ
    Full Name:
    Grant
    Put mine in for a new waterpump...... lets just say the new pistons arrive on Monday!
     
  16. Nurburgringer

    Nurburgringer F1 World Champ

    Jan 3, 2009
    11,187
    Texass
    resurrecting an old thread here to see if anyone has a source for these $8 pilot bearings (maybe $10 now after inflation? :))

    Part 103042 from the usual parts suppliers ranges from $187-$235 for this dinky little bearing.

    Once I pull it out can measure for non-OEM sources, but can't do that right now.

    thanks!
    Kurt
     
  17. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,246
    Snohomish, WA
    Full Name:
    Eric L
  18. Nurburgringer

    Nurburgringer F1 World Champ

    Jan 3, 2009
    11,187
    Texass
    #18 Nurburgringer, Mar 18, 2010
    Last edited by a moderator: Sep 7, 2017
  19. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,246
    Snohomish, WA
    Full Name:
    Eric L
    Ok, I understand now. 103042 in the diagram is #19, which is NOT what I'm (and I think others above) are refering to as the pilot bearing. The pilot bearing is in the tail of the crankshaft, which supports the tip of the clutch shaft. #19 in the diagram is the bearing on the bellhousing side of the clutch shaft, which typically does not need to be replaced.

    Strangely enough, I have not been able to find a diagram in the parts manual that shows the pilot bearing.
     
  20. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,246
    Snohomish, WA
    Full Name:
    Eric L
    I tried (and failed) using the old "fill the hole with grease" trick to get the old pilot bearing out.
    I ended up borrowing a bearing puller to get mine out, but here's a trick my buddy told me about after I was done. Don't know if it would actually work on the 308, but it may be worth a shot:

    http://www.youtube.com/watch?v=1xuR7T8G1Ys
     
  21. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,846
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
  22. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,246
    Snohomish, WA
    Full Name:
    Eric L
    Aha! I must have looked at these diagrams a thousand times and never saw it.
     
  23. Nurburgringer

    Nurburgringer F1 World Champ

    Jan 3, 2009
    11,187
    Texass
    anyone know how to say dumba$$ in italian?
    I obviously can't read a parts diagram. The one I posted above shows the parts outside of the flywheel, while the bearing I'm looking for is the one behind the FW.
    I realized this while on the phone with Dennis McCann, who also couldn't find the diagram that shows the pilot bearing, but has them in stock for $16.

    Thanks again for the reply fly - sorry to waste your time.
    cheers
    Kurt
     
  24. Nurburgringer

    Nurburgringer F1 World Champ

    Jan 3, 2009
    11,187
    Texass
  25. FF8929

    FF8929 Formula Junior

    Apr 12, 2008
    799
    Livonia, Michigan
    Full Name:
    Fred Flynn

    Brilliant!!!
     

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