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Author Subject: Strengthened internals
mechanical_repairs

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Location: leicester

Registered: 10 Jan 2005

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Post #1
Well i have been doing some homework on the gti6 gearboxes and have found a company who are willing to make up a gear set and synchros for the box that will add up to 40% stronger gears than original.

Prices are not yet confirmed but i would think these are going to be anywhere from

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C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo
Posted 29th Aug 2009 at 23:40
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #2
worth asking Miles as he build gearboxes Smile

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Posted 29th Aug 2009 at 23:43
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mechanical_repairs

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Registered: 10 Jan 2005

Posts: 12,122

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Post #3
welshpug! wrote:
worth asking Miles as he build gearboxes Smile



Never knew that.

Will get in touch. Cheers.

Carl

________________________________________

C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo
Posted 29th Aug 2009 at 23:48
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puglover Banned!

Location: Far out there

Registered: 08 Jun 2006

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Post #4
Im interested Carl but firstly i want to know what, why and how its going to be stronger as i dont want to be throwing money at some tool. I dont mean you just some people will claim anything to get work.

Second im strapped for a good while so no can do for some time.



Posted 30th Aug 2009 at 00:01
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mechanical_repairs

Seasoned Pro

Location: leicester

Registered: 10 Jan 2005

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Post #5
puglover wrote:
Im interested Carl but firstly i want to know what, why and how its going to be stronger as i dont want to be throwing money at some tool. I dont mean you just some people will claim anything to get work.

Second im strapped for a good while so no can do for some time.







Bigger gears and made out of different materials, a well known company so there is no worries there, wouldnt put my name to it if its going to give me greif.

Carl

________________________________________

C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo
Posted 30th Aug 2009 at 00:10
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buzzbrightyear

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Post #6
i would be interested but at a later date.
andy

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Posted 30th Aug 2009 at 00:30
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pdd144c

Senior User

Location: Southampton

Registered: 09 Dec 2005

Posts: 550

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Post #7
Still the same ratios or different?

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Posted 30th Aug 2009 at 01:19
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mechanical_repairs

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Location: leicester

Registered: 10 Jan 2005

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Post #8
All the same ratios etc, just the gears and syncros strenghened.

Carl

________________________________________

C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo
Posted 30th Aug 2009 at 03:09
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zac

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Location: Leeds city centre

Registered: 26 Dec 2005

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Post #9
Definitely can't afford it for a while, but as said on the phone, I'll be interested when I can.

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Posted 30th Aug 2009 at 05:09
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

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Post #10
I had Miles strengthen my box, and change a few bits and bobs when I went high boost. Yes

Very nice guy, knows his stuff. Smile

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Peugeot 306 GTi-6
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Posted 30th Aug 2009 at 05:26
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mattb-6

Regular

Location: Chelmsford

Registered: 18 Jun 2007

Posts: 324

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Post #11
Are the various gearbox failures definitely due to weak gears?

From speaking to Rich it seems that its 3rd which is the most common to go. Judging from this I reckon it may be a problem with the gearbox shafts deflecting (due to the helix gear separation forces at the increased rpm) which reduces the gear teeth contact and combined with the higher torque transmission causes failure that way. It would also make sense that in 1st/2nd it doesn't seem to be an issue because these gears are mounted much closer to the shaft bearings so the same force would result in significantly less shaft deflection.

IMHO it would be worthwhile getting a shaft from failed box onto a CMM machine and measure the concentricity between the bearing surfaces, also a good look at bearings would also be able to confirm whether this is the cause...

Anyway, just a thought. Are the new internals going to include strengthened shafts as well?

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Posted 31st Aug 2009 at 16:37
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miles

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Location: Ringwood

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Post #12
I won;t go into depth on the bxo issues on here, I will only say the 6 speed box's are weaker than the early 5 speed box's, later 5 speed, Xsara's etc suffer from the same issue's

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Posted 1st Sep 2009 at 03:00
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puglover Banned!

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Post #13
mattb-6 wrote:
Are the various gearbox failures definitely due to weak gears?

From speaking to Rich it seems that its 3rd which is the most common to go. Judging from this I reckon it may be a problem with the gearbox shafts deflecting (due to the helix gear separation forces at the increased rpm) which reduces the gear teeth contact and combined with the higher torque transmission causes failure that way. It would also make sense that in 1st/2nd it doesn't seem to be an issue because these gears are mounted much closer to the shaft bearings so the same force would result in significantly less shaft deflection.

IMHO it would be worthwhile getting a shaft from failed box onto a CMM machine and measure the concentricity between the bearing surfaces, also a good look at bearings would also be able to confirm whether this is the cause...

Anyway, just a thought. Are the new internals going to include strengthened shafts as well?


Im with you on that one.
Posted 1st Sep 2009 at 04:38
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pete_rallye

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Location: Yorkshire

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Post #14

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Posted 2nd Sep 2009 at 12:56
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mechanical_repairs

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Location: leicester

Registered: 10 Jan 2005

Posts: 12,122

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Post #15
pete_rallye wrote:

________________________________________

C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo
Posted 2nd Sep 2009 at 12:58
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