Menu toggle

901 Gearbox rebuild.

C

crouse

New member
Should I attempt a 901 gearbox rebuild? At the weekend I managed to break my 1971 911T box. Something went bang when pulling away gently from a junction and it jammed in first, although it released after a ride on the transporter home. It let go shortly after completing a quick and rather punishing historic rally test, however I did manage equal fasted time. I'm fairly competent mechanic but haven't done a gearbox rebuild before. Should I attempt it or just take it out and hand it over to an expert?
 
Not sure where you're based but the generally accepted 'guru' of these boxes is Mike Bainbridge - his website is at:

http://www.mbporsche-engineering.co.uk/

Best of luck [:)]

Philip
 
I think you might need some special tools for a 901 box but as suggested contact Mike Bainbridge as he will talk you through what's involved and help you work out if it is something you want to do yourself.

Ian.
 
[FONT=arial"]I've found the cause of my box sticking in first gear. It seems the nut holding the pinion shaft had worked loose allowing enough movement for the first/reverse gear slider to only engage on the last few millimetres of the gear. The gear teeth gave way when I was autotesting, the slider moved into the chipped teeth and locked the shift mechanism. I've been to see Mike today and I'm now looking at a rebuild requiring 1st Gear Slider,synchro & dog teeth. Its also damaged the pinion gear and probably needs new synchros on 2nd and 3rd. My problem now is to find a decent used pinion shaft and crown wheel. So if anyone can help me locate a decent pinion and crown wheel for a 911/901 "dog leg" box that would be great.
Clive

[FONT=verdana,geneva"]

A234D177DB9A416F9425CD2348A85259.jpg
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top