I have 3 what i thought to be F8B g/boxes in my backyard.
It turned out i had 2 f8b gboxs and 1 f5a gbox after i finished counting the teeth on the diff and output shaft.
While doing this i discovered a way to dicern between an f5a and f8b gear box if someone has removed the timing sticker from the top.
How to identify your box;
Under the g/box there is a round plate that covers the shifting mechanism which connects to the shifting forks, which shift the actual cogs. On this plate will either be 671-A or 671-B. Done you now know if you have the f5'A' or f8'B' type...
F5'A' Type
http://www.tamon.org/gallery/v/members/ ... e.jpg.html
F8'B' Type
http://www.tamon.org/gallery/v/members/ ... e.jpg.html
On a side note;
The f5a gear box has a wider bearing for the 4th gear but this CANNOT be placed onto the f8b output shaft as there isn't enough shaft space for it to run.
F5A & F8B Gear Box Identification - solved
So dose this mean that I can't run my F5A box on my F8B engine? (it's out of a hatch)ike849 wrote:
On a side note;
The f5a gear box has a wider bearing for the 4th gear but this CANNOT be placed onto the f8b output shaft as there isn't enough shaft space for it to run.
Yes you can. Ike was talking about interchanging internals between the two boxes.
F8B EFI turbo - Three pots and a snail.
- greenzook89
- Posts: 237
- Joined: Fri May 02, 2008 5:52 pm
- Location: Brisbane
wouldnt the gear ratios be too short with a F5A box on a F8B motor tho?? We had that problem with my mates one....
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Hell yes. It makes 1st gear almost useless, and forget about cruising on the highway!
F8B EFI turbo - Three pots and a snail.
Interestingly I have three gearboxes here, none of which have any code marked on the inspection plate.
Looks like I will have to pull them apart to see what they are.
Looks like I will have to pull them apart to see what they are.
F8B EFI turbo - Three pots and a snail.
I thought the ratio's are almost the same, but the final drive ratio is different between the gearboxes?
I know it's on these forums somewhere, that info that is.
Cheers
ToranaGuy
Edit: -> Borrowed from Suzukituning.com - all the credit for this info goes to them.
4 speed F8B gearbox gear ratio's:
Gear Gear Ratio Speed Ratio
1 43/12 3,583
2 39/18 2,166
3 32/24 1,333
4 27/30 0,900
Reverse 37/22x22/11 3,363
Final 87/20 4,350
4 speed F5A gearbox gear ratio's:
Gear Gear Ratio Speed Ratio
1 43/12 3,583
2 39/18 2,166
3 33/24 1,375
4 28/30 0,933
Reverse 37/22x22/11 3,363
Final 90/17 5,294
I know it's on these forums somewhere, that info that is.
Cheers
ToranaGuy
Edit: -> Borrowed from Suzukituning.com - all the credit for this info goes to them.
4 speed F8B gearbox gear ratio's:
Gear Gear Ratio Speed Ratio
1 43/12 3,583
2 39/18 2,166
3 32/24 1,333
4 27/30 0,900
Reverse 37/22x22/11 3,363
Final 87/20 4,350
4 speed F5A gearbox gear ratio's:
Gear Gear Ratio Speed Ratio
1 43/12 3,583
2 39/18 2,166
3 33/24 1,375
4 28/30 0,933
Reverse 37/22x22/11 3,363
Final 90/17 5,294
It's update time MB Parts list! send part info to toranaguy74@optusnet.com.au|
Got an update for you guys,
I have been in the shed, and the gearbox i thought was a F8b 4speed turns out it's a F5a - after looking under the grease i found the 671-a marking. The other gearbox, which is in 1,000 pieces, has no marking at all, which i thought was a F5a box.
Anyway, i counted the small gear's for each box. The box that has no markings has an F5a diff in it based on the number of teeth, and the box in pieces has the right number of teeth on the diff gears to be the F8b box. I didn't count the rest of the gears, don't have the time atm.
I did find an interesting marking on the crown wheel of the F8b diff, "784", which i have also seen on a fair few F8b cylinder heads. Not sure what it means but i'm thinking it's a code for F8b bits. I didn't pull the F5a diff apart to see what it has written, if anything on the crown wheel.
I also noticed the small gears (pinion?) are different in each box, not just the number of teeth, my F8b pinion gear has a recess on the face of it, the F5a item is flat!
No pics atm, but maybe tomorrow.
Cheers
ToranaGuy
I have been in the shed, and the gearbox i thought was a F8b 4speed turns out it's a F5a - after looking under the grease i found the 671-a marking. The other gearbox, which is in 1,000 pieces, has no marking at all, which i thought was a F5a box.
Anyway, i counted the small gear's for each box. The box that has no markings has an F5a diff in it based on the number of teeth, and the box in pieces has the right number of teeth on the diff gears to be the F8b box. I didn't count the rest of the gears, don't have the time atm.
I did find an interesting marking on the crown wheel of the F8b diff, "784", which i have also seen on a fair few F8b cylinder heads. Not sure what it means but i'm thinking it's a code for F8b bits. I didn't pull the F5a diff apart to see what it has written, if anything on the crown wheel.
I also noticed the small gears (pinion?) are different in each box, not just the number of teeth, my F8b pinion gear has a recess on the face of it, the F5a item is flat!
No pics atm, but maybe tomorrow.
Cheers
ToranaGuy
It's update time MB Parts list! send part info to toranaguy74@optusnet.com.au|
- stevan_istheman
- Posts: 851
- Joined: Tue Nov 02, 2004 10:13 am
- Location: Sunshine Coast, Queensland
- Contact:
Interesting..
Might be even more fun if F6A 5 speed parts will fit with the aussie 4 speed components.
Might be even more fun if F6A 5 speed parts will fit with the aussie 4 speed components.
BAL4 Designs
For all your mechanical design and drafting requirements.
For all your mechanical design and drafting requirements.
In what way?stevan_istheman wrote: Might be even more fun if F6A 5 speed parts will fit with the aussie 4 speed components.
F8B EFI turbo - Three pots and a snail.