Club G40 Forum
Technical => Engine and Transmission => Topic started by: AdzCM on August 02, 2014, 01:11:30 pm
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As in the wanted section, I need a 5th gear for my ATV g40 box.
I did a search and saw that a few of you have eaten through 5th gears on track days and the likes. Where did you get your replacements?
Also saw that some had the idea of using the 5th gear from an 8P/CEG box. What cars are they off?
Any other ideas on where to get a 5th gear that will work well in my g40 because I have no idea where to get one :(
Thanks
Adrian
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You can't get them from VW any more - they went obsolete a while ago.
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I had mine from a CEG mate. It has almost the same ratio with the ATV.
I bought this box for 100 euros and it was from a 1.4 mk2 ibiza.
VW will ask you a lot more for just a gear...
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I've found a ceg 5 speed gearbox for sale for £175 ... Should I go for it saying its unlikely I get anything cheaper than that? Will the 5th gear fit straight into the atv box no problem?
Thanks guys!
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175 pounds are quite lot for a ceg... Take a look at your local scrapyards
CEG's gears are slightly longer (compared with the ATV) except 3rd. The crown wheel makes the atv longer.
Yes its a straight fit.
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175 pounds are quite lot for a ceg... Take a look at your local scrapyards
CEG's gears are slightly longer (compared with the ATV) except 3rd. The crown wheel makes the atv longer.
Yes its a straight fit.
Thanks mate, I reckon ill just try to talk the guy down on price as I doubt I'm going to find any in the scrappys round where I live. Hope I get it sorted soon.
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Ceg is the same as an 8p fifth, longer than an atv fifth by a fair bit. A 16v mk4 fifth will be nearer what you want.
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yeah an 8p/CEG 5th is annoyingly long, there's a huge gap between 4th and 5th. I had a g40 with an 8p 5th on for a bit and you have to almost red-line it in 4th in order to stay anywhere near the power band when changing to 5th. I found it annoying.
Also £175 for a CEG/8P is crazy money. I've had several of them for free over the years. I'd not pay more than £50 for one myself. £175 should be G40 ATV box money.
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buy this, swap out the gemini for a standard diff and then sell the gemini for £400:
http://www.polog40.co.uk/forum/index.php?topic=11190.0
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or just buy it, sell the gemini and keep the rest as spares and put the 5th into your current box.
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Good thing I read this before buying. Thanks a bunch Paul and co.
I have a quaife diff fitted to the box and don't really have the money to buy that suggested gearbox with the Gemini.
16v mk4 what? Any links to one or advice on where to find one please like gearbox codes etc? Getting desperate as I have no clue about gearboxes :(
Thanks again, really appreciate it.
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Any ideas?????
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no idea of the codes but it'll be from an early 6n (mk4) polo 16v, so something like 1996-1998 or 1999. Still probably going to be a couple of 100 quid though, not that many of them about now.
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I think the AFH gearbox is a code CWX.
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Thanks for the replies. I've been told the 5th gear from a gt gearbox [code: ahd] would be a good choice :) - any objections to this?
What is the difference between the GT gearbox and the G40 gearbox out of curiosity?
And cheers, I think it is CWX after looking on clubpolo.
Thank you.
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Who's told you that, clearly don't know what they are on about. Either get an 8p,ATV or CEG 5th or the above valver one.
Gt 5th is mega crap ultra short, pointless on a G
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I know of a ATV box with a busted 2nd gear that will be getting sold soon. Depends on how quick you need this 5th gear as you could buy this box off him cheaply. Only thing is its got a quaife diff in it so will obviously want more with that in it.
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I might have a 5th gear available. I'd like to keep one as a spare but haven't inspected another bust box I have. If that is fine I'll have two so you could have my other one. I'm away for a week now though so can't look immediately unfortunately.
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That is brilliant Sam :) let me know.
Adrian
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Thanks for the replies. I've been told the 5th gear from a gt gearbox [code: ahd] would be a good choice :) - any objections to this?
What is the difference between the GT gearbox and the G40 gearbox out of curiosity?
And cheers, I think it is CWX after looking on clubpolo.
Thank you.
I ran an AHD box when i first bought the G. Ratios aren't great. 5th at 60mph was at 300rpm so very noisy.
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There is a guy on the facebook page selling all the parts from an ATV.
https://www.facebook.com/groups/234467796683873/?fref=nf
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Who's told you that, clearly don't know what they are on about. Either get an 8p,ATV or CEG 5th or the above valver one.
Gt 5th is mega crap ultra short, pointless on a G
It was me.
Part number is the same for 5th in a ATV, AHZ, AHD CEH, CEK just checked.
Final drive causes the GT boxes to be miles out ;)
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5th gear set off Vagcat for reference
085311361B
gear
5-speed Z=40/47 / AHD,AHZ,ATV, CEH,CEM,CEK,
085311158E
gear
5-speed Z=40/47 / AHD,AHZ,ATV, CEH,CEM,CEK,
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There is a guy on the facebook page selling all the parts from an ATV.
https://www.facebook.com/groups/234467796683873/?fref=nf
Thanks for that man, but could you contact the guy for me as I literally spent like 20mins scrolling down through that page and couldn't see it haha. Maybe I'm blind but I just can't find it lol.
Cheers Nick, I'll still keep an eye out for one of those boxes too...
Adrian
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Who's told you that, clearly don't know what they are on about. Either get an 8p,ATV or CEG 5th or the above valver one.
Gt 5th is mega crap ultra short, pointless on a G
just FYI Nick_S is correct -
both the GT (AHD & CEH) gearbox and the ATV from the G40 have the same 5th gear ratio of 0.851
it's the final drive ratio in the GT box of 4.063:1 unsuitable for a G40, compared to the G40 of 3.33:1
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Clearly its me who doesn't know what I'm on about lol. Crazy how the final drive is so different! If only GT boxes were more common.
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you should download the gearbox ratios spreadsheet from club polo
there are loads of gears "shared" across other boxes so you could in theory pick and chose.
I had a GT box with the diff from a 6N DCD box and 3rd gear from an 8P box in as 4th. Shame all the 5th gears are massive
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Ok so my 5th gear is apparently fine.
When I went to the guy who caused the damage, his exact words were "you need a 5th gear" so what am I supposed to get? Apparently I need a 5th gear synchronizer ring and a synchronized hub/locking collar. What an idiot! I just wasted over a month of my time searching for a 5th gear!
Are these parts I need specific to the atv box or will they be the same for any 5speed box?
Will vw still do them?
Thanks again.
Adrian
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Got it sorted.