astra g 6 speed conversion adventures

milo

it'll be a z20net more than likely or saab engine like carls

evocarlos

HarleyPete said:
Wow, how the heck do you squeeze 600bhp out of a Signum 2.2 or is it a bigger engined one?

with a cummings truck turbo and an m62 🙂 its a 2.0

evocarlos

box is now all working again the 3rd and 4th were notchy at 1st but have settled in to smooth now and as i have changed back to the 0.744 ratio 6th gear (same as the vxr box) i now have cruise control in 6th 🙂

evocarlos

more work on the box and couple of other bits to try and stop a wobble ive got
wheel bearings

all out

the bolts on the subframe dont seam right

cut the small washer off and its now flat

new wheel bearings on

fitted some known good cv joints

diff out

quaffe

timken cut off and thrown in the bin new snr going in

checking for round and then making a better job of centering bolt

not bad if i say so myslef lol

dewismotorsport

Was the little washer not meant to go under the bolt head? Good work on the box, new bearings are loads biggger

evocarlos

dewismotorsport said:
Was the little washer not meant to go under the bolt head? Good work on the box, new bearings are loads biggger

came pre made there pressed on to the bolt and i thru the old ones in the bin so not sure if it was meant to be under or above ? :S

thanks 🙂 took me a while to do but its still notchy works fine could just be the new syncros bedding in or on the sevier side a bent/damaged selector fork

dewismotorsport

Ah right, odd design then.

Hopefully it sorts itself out (y)

HarleyPete

Looking at that I would say the bolts were wrongly made. The spring washer should have been on the head side of the large washer not the bush side.

evocarlos

HarleyPete said:
Looking at that I would say the bolts were wrongly made. The spring washer should have been on the head side of the large washer not the bush side.

it was not a spring washer thats just where i cut it and bent it off 🙂 i dont actually know what the originals look like lol

dewismotorsport said:
Ah right, odd design then.

Hopefully it sorts itself out (y)

seams a bit better today think i may need to bleed the clutch again and im sure there's something different with the clutch pedal like its stiff in the last part

evocarlos

from post 177

evocarlos

Next step on the 6speed conversion
Ive managed to get a real clean and tidy corsa vxr box for a price im not saying as it turns out the box dont even need the 6th gear bearing doing

Even the inside of the bell housing is clean

Gears all look good

Counted the ring and pinion 71/17 so it is the 4.17 fd

Next step mix and match to get the box i want 4.17 fd with 1-5 astra gears and the diesel 6th 🙂

evocarlos

Could be easyer than i thought the corsa box uses the same MZ0 gears as the vectra box

Swap the diff and fit the diesel 6th then put the revised end case on

But i think im going to change the large bearings on the pinions in the process

evocarlos

new tool for the batcave 10ton press works well after some assembly

them big bearings on the pinion shafts dont stand a chance 🙂

evocarlos

the new box will have the 4.17fd and the diesel 6th gear the gear calc says 220mph in 6th at 7800rpm lol never happen on the road wheres me axle stands 🙂

evocarlos

got the box out the car this afternoon in the dark the new ring battery spot lamp helped with that lol

still quite clean

cleared some space on the bench and got to stripping it down

yep the diff is still there lol

press came in handy for the bigger bits

and for pushing off the 6th gear off the input shaft

all parts checked and laid out ready for when the new bearings arrive

corsaZ22se

these boxes do fall apart easy.
almost like they were made to be stripped quick.
so light to.

evocarlos

and people keep saying the f23 is better had nothing but trouble with both of mine
the m32 in both cars have been better overall smother changes better fuel eco with the use of 6th and the convenience of being able to do a 98% repair without even removing the bellhousing i say 98 cause the one part the input shaft seal you cant do unless you take the bellhousing off

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