Date: Sat, 9 Jun 2007 21:38:37 +0200
Reply-To: Jens Jakob Andersen <jayjay@ZORCK.DK>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jens Jakob Andersen <jayjay@ZORCK.DK>
Subject: Re: SPAM-LOW: Re: Clutch problem - input needed
In-Reply-To: <c4e7c5f90706091229g64426ba2qde1bf61e6ea8cc41@mail.gmail.co m>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Hi
Thank you for the good inputs.
1. Clutch lever binding on slave cylinder bracket. Will check it -
but properly not.
2. I have had Ida depress the cluch several times, slave moves,
depresses releaseshaft arm.
3. Clutch housing - check.
4. Did check the release-bearing guide sleeve. It looked OK to me.
Did polish it with a rag, and gave it a light coat, very light of
cobber-grease.
Could be that clutch lever bushings are so worn that lever is binding.
Could be pilot bearing, though it looked good.
/JJ
At 21:29 09-06-2007, neil wrote:
>Ok, so same clutch pedal behaviour as before.
>
>Hmm....
>
>if it's not the master/slave cylinder or related hydraulics, then you
>likely have to drop tranny again.
>
>Before doing that, have helper depress clutch pedal while you watch
>the slave, and clutch lever to see what it does.
>
>*** make sure Clutch Lever is not binding on slave cylinder bracket ***
>
>Is clutch housing bolted/aligned correctly? ("far fetched" problem!)
>
>The limited clutch pedal travel is likely due to a part in clutch housing.
>
>Was the Release Bearing Guide Sleeve torqued down properly and in good
>shape? If it was loose or too worn, it seems to me that the bearing
>would bind in its' travel.
>
>Is it possible that Clutch Lever bushings/bearings are so worn that
>lever is binding?
>
>Did you check for play in Release Shaft?
>
>
>Neil.
>
>
>
>
>
>On 6/9/07, Jens Jakob Andersen <jayjay@zorck.dk> wrote:
>>Hi Neil
>>
>>Yes - same behaviour. Maybe the clutch pedal could move a bit further
>>towards the floor (when bleedscrew closed), and after bleedscrew
>>open, it moved the rest of the way).
>>
>>Weird thing is, that when I drive the car, engaging and dis-engaging
>>the clutch feels quite normal (if it wasnt for the grinding of gears.)
>>
>>I.e. when I start, there is some travel in the cluch pedal before the
>>clutch is fully engaged.
>>
>>So it feels like the clutch definately has some travel - if feels
>>almost right - if it wasnt for something driving the gearshaft.
>>
>>In my head it can be these thing:
>>1. Pilotbearing defect, and thus spinning the gearshaft. But the
>>pilot bearing looked nice. (Can I pull the pilotbearing without
>>pulling the flywheel? It looked like that the flywheel is blocking
>>the sleeve of the pilotbearing?
>>
>>2. Flywheel rough - thus not letting the frictionplates slip. But the
>>surface of the flywheel looked very nice and smooth.
>>
>>3. Clutch release bearing not working properly.
>>3.1 Can be releasearm not moving freely. Yes, it was quite cruddy and
>>rough, but we cleaned it nicely (didnt pull it though :( ) and it
>>could move OK after that.
>>3.2 Air in the clutch hydraulic pipe. We did bleed it. 5-10 strokes
>>of the cluthcpedal with nice clean airfree brakefluid. Should be enough?
>>3.3 Could be a rough edge in the slavecylinder, blocking it to move
>>full stroke.
>>3.4 Could be a rough edge in the casing of the gearbox where the
>>releasearm is placed. Again - we didnt pull the releasearm and
>>renewed the bushes.
>>
>>But I am really really puzzled.
>>
>>JJ
>>
>>
>>At 20:47 09-06-2007, neil wrote:
>> >>When I bleed the hydraulic system, funny symptom.
>> >>Ida depresses clutch, I open bleedscrew, clutch-pedal goes the rest
>> >>of wayto the floor.
>> >
>> >Hi.
>> >
>> >Did clutch pedal behave the same way before you installed new clutch?
>> >
>> >i.e. limited travel?
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >On 6/9/07, Jens Jakob Andersen <jayjay@zorck.dk> wrote:
>> >>Hi,
>> >>
>> >>I have a clutch problem.
>> >>
>> >>For a while I have had a clutch that coudnt disengage fully. I
>> >>suspected worn pilotbearing.
>> >>
>> >>Today I changed the clutch, put in a brand new LUK clutch - so nice.
>> >>
>> >>The Pilot-bearing looked fine, so I didnt change it, just gave it a
>> >>little bit of grease. Used mypinky to grease it - felt fine.
>> >>
>> >>When I started the engine, I STILL HAVE THE SAME PROBLEM!!!.
>> >>
>> >>It feels like the clutch just doesnt dis-engage enough.
>> >>
>> >>I have to switch off engine, put in gear, start engine with clutch
>> >>depressed, other foot on brake, since cars just wants to drive.
>> >>
>> >>When I bleed the hydraulic system, funny symptom.
>> >>Ida depresses clutch, I open bleedscrew, clutch-pedal goes the rest
>> >>of wayto the floor.
>> >>
>> >>Looks to me like some kind of problem, that the release-bearing arm
>> >>cannot turn enough. Maybe problem with the release-arm bushings?
>> >>Maybe problem with slavecylinder?
>> >>
>> >>I am fully puzzled, I will get another slavecylinder early sunday
>> >>morning (used one), and try to put that on my car,and see if it
>> >>solves problem.
>> >>
>> >>Anyone have ANY idea of what can be causing the problem?
>> >>
>> >>And does anyone know how much the slavecylinder-piston should be able
>> >>to travel?
>> >>
>> >>/JJ
>> >
>> >
>> >--
>> >Neil Nicholson. 1981 Air Cooled Westfalia.
>> >
>> >http://web.mac.com/tubaneil
>>
>>
>>
>
>
>--
>Neil Nicholson. 1981 Air Cooled Westfalia.
>
>http://web.mac.com/tubaneil
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