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 435 to 602 
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Firing on two.
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Joined: August 8th, 2012, 11:00 am
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Location: Korpilahti, Finland
Post Re: 435 to 602
bobh wrote:
Mail me if you want my notes on a 425 to 602 conversion.
BobH

425 to 602 is much harder job to do than 435 to 602... From 435 to 602 is pretty straight forward job...


August 7th, 2019, 9:12 am
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Firing on two.

Joined: May 23rd, 2011, 7:14 pm
Posts: 159
Location: Nr Glasgow
Post Re: 435 to 602
Soooooo, Tested, circa '85 602 engine sitting in my shed. I also acquired a drum box, (that came with an unknown engine......) How can I identify what box I have ! (both tested and unknown engines have diaphragm clutches so I'm assuming they should fit??...)

Also, there is a "wee bit" play in the output shaft....Is this normal or is it gubbed?

Number on the top is:
AM . 331 . 11 . 9 2

Also, did I read somewhere that if I come across a disk braked gearbox I could simply whip of the disc assembly and fit drums???

Cheers
Gerry


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August 8th, 2019, 12:01 pm
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Firing on two.
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Joined: August 8th, 2012, 11:00 am
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Location: Korpilahti, Finland
Post Re: 435 to 602
48pop wrote:
How can I identify what box I have !

On the "smooth" area next to splines, no groove: 2CV6, two grooves: 2CV4 (435, no 425), one groove at the end side: AMI8 and one groove a t the gearbox side: Mehari and van (AKS400 if I recall correct)

Or rotating from input shaft, counting how many rotations and some over it need to one output round, and then comparing to gearbox data...

And the exact, very sure method, tear it apart and see what gears it has inside...


August 8th, 2019, 10:02 pm
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Firing on two.

Joined: May 23rd, 2011, 7:14 pm
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Location: Nr Glasgow
Post Re: 435 to 602
ok, no groove so 2cv6 ?

and about the slight side to side play.....ok?


August 8th, 2019, 11:40 pm
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Joined: March 21st, 2013, 12:04 am
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Post Re.: 435 to 602
I would be surprised if you could find a 'used' gearbox without a little sideways play in the input shaft. Do you know any of its history. Storage, etc.

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August 9th, 2019, 12:02 am
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Firing on two.

Joined: April 20th, 2017, 10:55 pm
Posts: 107
Post Re: 435 to 602
The image of the input shaft seems to show a threaded portion unless I'm mistaken. Is this gearbox for a centrifugal clutch? That would take a nut to hold the clutch drum to the shaft. Bit of play in the input shaft is normal.


August 9th, 2019, 7:43 am
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Joined: May 23rd, 2011, 7:14 pm
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Location: Nr Glasgow
Post Re: 435 to 602
Rodger, don't know anything of its history.........came attached to a 602 though

Derek, just a regular diaphragm clutch when I split engine/box...


August 9th, 2019, 9:33 am
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Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
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Post Re: 435 to 602
Gerry,
that's the wrong mix, since a diaphragm clutch should be mated to a 'long spline' gearbox.
When mated with a 'short spline' gearbox, which is what you've got, it will work however there will be an increased tendency for clutch judder to occur.




48pop wrote:
Rodger, don't know anything of its history.........came attached to a 602 though.
Derek, just a regular diaphragm clutch when I split engine/box...

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August 9th, 2019, 12:26 pm
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Firing on two.

Joined: May 23rd, 2011, 7:14 pm
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Location: Nr Glasgow
Post Re: 435 to 602
Ahhh, okdoke, Thanks Ken ! I'll have a look for another box....

If i find a disk braked box first, can I swap the drum setup to a disk box?

Thanks !


August 9th, 2019, 1:16 pm
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Joined: February 17th, 2009, 8:43 pm
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Post Re: 435 to 602
48pop wrote:
Ahhh, okdoke, Thanks Ken ! I'll have a look for another box....

Or, get the correct clutch for the box?

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August 21st, 2019, 10:40 am
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