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Help, I can't select 1st or reverse

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Old 03-04-2007, 03:25 PM
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jamesallum
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Default Help, I can't select 1st or reverse

I had hopes of a nice spring weekend driving around in my shiny re-sprayed 911. Unfortunately I got to a friend’s house 80 miles from home and torrential rain started. And then my car broke.

I couldn’t select first or reverse gears and second was tricky. Without the engine running I could select all of them. Suspecting that the clutch needed bleeding I called my recovery service who actually made matters worse and I lost all hydraulic action of the clutch. So she was put on a flat bed lorry and taken to my Porsche specialist.

Does anyone have an idea of what the problem might be? I had a new slave cylinder last year and clutch 20,000 miles ago. The gearbox has worked a dream until now, although the clutch pedal had been quite spongy. Northway (my Porsche specialists) can’t look at her until later this week and I am hoping to put my mind at rest before then.

Many thanks,
James
Old 03-04-2007, 03:36 PM
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Indycam
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Somethings gone bad in the hydraulics .
Can you pump up the clutch , so that you can get it into 1st ?
Does the fluid level in the ress look good ?

I Guess
hose gone soft ,
clutch master has air in it ,
fluid has leaked out of the system slowly ,
clutch pedal pin gone **** up ,
etc etc etc
Old 03-04-2007, 04:01 PM
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jamesallum
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Thanks. Before the recovery service messed up the bleeding, the fluid was high but even though I could pump clutch still couldn't engage 1st.

The recovery guy thought master cylinder was at fault, although the Porsche specialist said that is rare. Hoping it is just a damaged hose.
Old 03-04-2007, 04:04 PM
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Indycam
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Master cyls do go bad , nothing last forever .
Do you know about the clutch pedal pin ?
Old 03-04-2007, 04:21 PM
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darth
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If you can get it into the other forward gears then I suspect 1st gear synchro and I'm not sure there's a synchro for reverse - if not then it may be the slave cylinder as others have suggested.

Bill
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Old 03-04-2007, 04:27 PM
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Indycam
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You do not need a synchro for 1st . You do not need a synchro for reverse .
I know for sure this is not a synchro problem .

I've owned and driven cars without any 1st gear synchro .
Never had a synchro on 1st from day one , boxs .
Old 03-04-2007, 04:43 PM
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jamesallum
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Not sure about pedel pin. Am I correct in thinking that the master cylinder isn't an engine out job?
Old 03-04-2007, 04:44 PM
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Indycam
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Master cyl is in the front .
Old 03-04-2007, 04:50 PM
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Indycam
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https://rennlist.com/forums/964-forum/334157-sudden-clutch-release-problem-c4.html

The other clutch problem thread with links to other clutch pin threads .
Read um and you will know all bout clutch roll pin failures and fixs .
Old 03-04-2007, 05:23 PM
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Indycam
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http://www.autoweek.com/apps/pbcs.dl...4011/1027/FREE
1960 ******
"There is no synchro to first gear, which requires resting the gear lever in neutral until the ****** rolls almost to a full stop before slipping the lever into first."
Old 03-14-2007, 04:07 PM
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CraigyB

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I think I'm about to develop this problem aswell. I have to put the clutch right to the floor to change gear, and tonight when I got home, it was very very hard to get the car into reverse, 1st was pretty heavy too, but not quite as bad.

Did you get to the bottom of the problem James ?
Old 03-14-2007, 04:16 PM
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warmfuzzies
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My problem turned out to be the slave cylinder, hose and then bleeding the WHOLE system, I used Super ATE Blue, easy to see the colour change....I thought a new clutch was needed, it wasn't, so it maybe yours is the same????

Kevin
Old 03-14-2007, 06:38 PM
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CraigyB

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Hopefully ! Kevin did you do the job yourself ? Expensive ?
Old 03-15-2007, 04:14 AM
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Interesting how sleeping on a problem helps, and searching the forum, my symtoms really look exactly like they are caused by leaks. Also since last autumn my car developed a new oil leak, which by the time it hits the floor is on the slave cylinder side.................
Old 03-15-2007, 06:43 AM
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jamesallum
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Sorry guys been meaning to reply. Yes seemed to be the clutch pin after all = 1 hours labour (£50). Thanks for the suggestions.
J


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