How can i tell what Ration my 2 speed gearbox is?
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Hi, HELP!!!!!
Can anyone help me to find out what my 4 speed gearbox ratio is. I do know it came out of a Lotus Elan.
Can anyone help me to find out what my 4 speed gearbox ratio is. I do know it came out of a Lotus Elan.
- DreamBuilderiHope
- Second Gear
- Posts: 70
- Joined: 01 Apr 2023
- Location: United Kingdom
Mark the input and output shafts and measure the number of turns it takes to make one turn of the output in 1st gear
- jono
- Coveted Fifth Gear
- Posts: 2071
- Joined: 17 May 2007
- Location: The wet bit in the top corner of England
Hi,
Thanks, bur i dont have a gear stick so i cant put it into 1st gear?
Dave.
Thanks, bur i dont have a gear stick so i cant put it into 1st gear?
Dave.
- DreamBuilderiHope
- Second Gear
- Posts: 70
- Joined: 01 Apr 2023
- Location: United Kingdom
Take the aluminum cover off and count the teeth. I don't have the chart with me, but someone will turn up that does.
Henry
69 Elan S4
65 Seven S2
69 Elan S4
65 Seven S2
- SENC
- Coveted Fifth Gear
- Posts: 1074
- Joined: 30 Dec 2015
- Location: NC
Hi Henry,
Have taken off the top but what teeth there are several from lert to right diff thickness?
Dave.
Have taken off the top but what teeth there are several from lert to right diff thickness?
Dave.
- DreamBuilderiHope
- Second Gear
- Posts: 70
- Joined: 01 Apr 2023
- Location: United Kingdom
The smallest gear (in diameter) is the main/4th gear. I just looked at some notes I had online and it looks like the standard ratio has 17 teeth and the close ratio 19 teeth.
Note - 1st gear and reverse gear have the same number of teeth for the various gearboxes.
Note - 1st gear and reverse gear have the same number of teeth for the various gearboxes.
Henry
69 Elan S4
65 Seven S2
69 Elan S4
65 Seven S2
- SENC
- Coveted Fifth Gear
- Posts: 1074
- Joined: 30 Dec 2015
- Location: NC
Thank you so much Henry!!!!!
Dave.
Dave.
- DreamBuilderiHope
- Second Gear
- Posts: 70
- Joined: 01 Apr 2023
- Location: United Kingdom
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