MX5 Gearbox To Zetec ?

[speedtripledan]

Anyone know if this possible without major mods?

[richyb66]

I take it that's the 6 speed Getrag box and you're sick of weedy type 9's?

 

It looks like some of them have an integral bellhousing (6 cylinder cars) but that said, this bloke has fitted one to a cossy YB block by welding on the front end of (presumably ) a T5 bellhousing. Maybe you could do the same thing with the front of an MT75 which would be a cheaper option.

 

http://passionford.com/forum/restorations-rebuilds-and-projects/405850-norwegian-trackday-cosworth-new-part-getrag-420g-6-speed-gearbox.html

 

Post 15 near the very bottom is the relevant bit - the rest of the thread is just interesting reading.

[speedtripledan]

Meant to say mx5 I. M getting quotes of 1100 for a recon tall 1st type 9

[Grim]

are you sure the box is goosed? have you checked the plastic saddle under the gearstick? i lost a handful of gears when mine disintegrated

[nicko]

A little search found this http://type9gearbox.com/

Don't know if it's any help.

Nick

 

[richyb66]

Wouldn't a T5 be a better option?

 

It's hardly any bigger than a type 9, the gear lever is in pretty much the same place,it's a third the cost of an uprated type 9 and bellhousings are easily available.

[speedtripledan]

Andy all the gears are there just 5th and 3rd are making really bad noises

[Guest Ian & Carole]

Dan

Is it quiet in 4th gear and does is rumble, grumble at tick over in neutral with the clutch engaged?.

 

If so I would imagine the 1st motion shaft bearing, some call it the input shaft bearing, is goosed and a £15.00 job to replace.

[speedtripledan]

Done some reading and a t5 to zetec is not a straight swap. Flywheel starter and bell housing issues

[speedtripledan]

Ian it's silent in 4th and at Tick over

[Guest Ian & Carole]

My money, for what its worth, is still the 1st motion shaft bearing, when in 4th ALL the power goes in a straight line down the input shaft and straight out of the main shaft to the prop and on to the diff, granny sucking eggs here so sorry.

 

In 1st , 3rd the power turns through 90 degrees down to the lay shaft and back up to the main shaft, hence silent in 4th and noisy in 1st and 3rd and 5th obviously.

 

With your skills and knowledge, a sierra manual, a set of bearings, seals and gaskets, job done for around 50-60 squid.

 

 

[speedtripledan]

once i have the gearbox out i,m going to have a look and see if i can repair it, i,m not paying the 600 + for a recon unless that is absolutely the last resort.

Edited September 2, 2014 by DanE