53 replies to this topic

[RallyRed]

When you do something Col you do it good and proper.
I'd still be checking that when in 1st gear the input shaft turns a smidgen past 2.5 turns to every turn of the output shaft.

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Edited by RallyRed, 07 August 2018 - 11:37 AM.

[Bigfella237]

You would need a couple of degree wheels to get much more accurate than that ^

 

Or just count the teeth and do the math... as set out in CAMS H2-3 (attached below):

 

Ratio   No.Teeth    

2.54     25 29

         --x--  = (25 / 19) * (29 / 15) = 2.5438596491228070175438596491228

         19 15



1.83     25 25

         --x--  = (25 / 19) * (25 / 18) = 1.827485380116959064327485380117

         19 18



1.25     25 21

         --x--  = (25 / 19) * (21 / 22) = 1.255980861244019138755980861244

         19 22



1.00     Direct



Reverse:

2.54     25 27

         --x--  = (25 / 19) * (27 / 14) = 2.5375939849624060150375939849624

         19 14

 

[RallyRed]

You would need a couple of degree wheels to get much more accurate than that ^
 
Or just count the teeth and do the math... as set out in CAMS H2-3 (attached below):
 

Ratio   No.Teeth    

2.54     25 29

         --x--  = (25 / 19) * (29 / 15) = 2.5438596491228070175438596491228

         19 15



1.83     25 25

         --x--  = (25 / 19) * (25 / 18) = 1.827485380116959064327485380117

         19 18



1.25     25 21

         --x--  = (25 / 19) * (21 / 22) = 1.255980861244019138755980861244

Yep..didntvwant to crack it open after they sealed it up so well..so just counted I/P splines  and Output splines and did the maths for 360 degree turn of input.
         19 22



1.00     Direct



Reverse:

2.54     25 27

         --x--  = (25 / 19) * (27 / 14) = 2.5375939849624060150375939849624

         19 14

 

[RallyRed]

yeah..just counted the Input & Output shaft splines, and did the maths in each gear, for 1 x 360 degree turn of I/P shaft.