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Gearbox help G200 DOHC

 
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Gem03
rice boy


Joined: 31 Mar 2003
Posts: 28

PostPosted: Thu Oct 30, 2003 1:30 pm    Post subject: Gearbox help G200 DOHC Reply with quote

Ive got a twin cam motor and I need to know if the diesel gearbox's bolt straight up and is the standerd tail shaft ok to use? or is it easier to modify the standered gear box?
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GasGem
backyard mechanic


Joined: 05 Nov 2001
Posts: 755

PostPosted: Thu Oct 30, 2003 2:56 pm    Post subject: Re: Gearbox help G200 DOHC Reply with quote

usually a twin cam motor has the starter motor on the other side of the gearbox to a standard gemini motor, other than that they do bolt up the same. diesel and petrol single ccam boxes are the same and will not suit a twin cam,


but as a last resort you could get a single cam gearbox and cut the starter mount out of the bell housing and swap it over then get it welded back in.

cheers
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Stock TE
backyard mechanic


Joined: 12 Mar 2002
Posts: 853

PostPosted: Thu Oct 30, 2003 4:47 pm    Post subject: Re: Gearbox help G200 DOHC Reply with quote

The 4-speed with reverse left and down, out of the early TX with the different floor pan should fit. There was a post a while back saying these are the same as an Isusu Bellett gearbox, if this is right it will definetely fit.
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GasGem
backyard mechanic


Joined: 05 Nov 2001
Posts: 755

PostPosted: Thu Oct 30, 2003 5:58 pm    Post subject: Re: Gearbox help G200 DOHC Reply with quote

but the starter is still on the wrong side???
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elky
petrol head


Joined: 06 Oct 2001
Posts: 1149

PostPosted: Fri Oct 31, 2003 12:12 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

yep the starter is wrong for the twin cam, apparently the bellet 4 speeds have the starter on the pass side but why use a old weak gearbox? seems unless u get the lot a twin cam conversion is pretty fiddly
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Stock TE
backyard mechanic


Joined: 12 Mar 2002
Posts: 853

PostPosted: Fri Oct 31, 2003 1:02 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

The TX coupe with the funny floorpan has a passenger side starter which means it is the same as the twin cam.
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Stock TE
backyard mechanic


Joined: 12 Mar 2002
Posts: 853

PostPosted: Fri Oct 31, 2003 1:05 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

What do you mean old weak gearbox the Bellett gearbox is actually stronger than the Gemini one. The only reason you would change the Gemini gearbox over is it has fifth gear.
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Stock TE
backyard mechanic


Joined: 12 Mar 2002
Posts: 853

PostPosted: Fri Oct 31, 2003 1:14 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

The Bellett has got a nicer and quicker shift as well, almost as good as a remote shift twin cam 5-speed.
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QldRobbo
tinkerer


Joined: 11 Apr 2002
Posts: 455

PostPosted: Fri Oct 31, 2003 1:28 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

Good thing I've got a remote shift twin cam 5-speed then
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Gem03
rice boy


Joined: 31 Mar 2003
Posts: 28

PostPosted: Fri Oct 31, 2003 10:05 am    Post subject: Re: Gearbox help G200 DOHC Reply with quote

Does everything line up correctly, tailshaft, mount ect..?
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Stock TE
backyard mechanic


Joined: 12 Mar 2002
Posts: 853

PostPosted: Fri Oct 31, 2003 1:29 pm    Post subject: Re: Gearbox help G200 DOHC Reply with quote

The gearbox matches the Gemini fine spline tailshaft, the mount is out by about 15mm (pretty sure about this), other than that it all lines up fine.
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Gem03
rice boy


Joined: 31 Mar 2003
Posts: 28

PostPosted: Fri Oct 31, 2003 3:17 pm    Post subject: Re: Gearbox help G200 DOHC Reply with quote

Cheers!!!
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