identify thus driven clutch

[mark123]

Could someone identify this clutch. I though it was a 40 comet but doesn't look similar to the pics I found online. 7 3/16" outside diameter.

 

[itsid]

well because it's a MAXTORQUE not a comet (as it clearly states on the cam )

(IIRC it's somewhat compatible with a comet series 20 but don't quote me on that )

'sid

 

[mark123]

OK well the previous owner must have replaced the driven with a Max torque and the drive is a series 40 comet. Do you think this will work. I jumped the gun and ordered a 7/8" belt designed to fit a paired series 40 comets which are spaced at 7.875" then just found out my driven is a max torque which uses 3/4" wide belts. Any chance this will work or should I just order a new 40 series driven. My 9 year old is pretty excited to get this thing running. Thanks again.

 

[Bbqjoe]

well because it's a MAXTORQUE not a comet (as it clearly states on the cam )

(IIRC it's somewhat compatible with a comet series 20 but don't quote me on that )

'sid

Son of a...........

I was gonna say Max torque too!!!

Wait a minute!
Aren't you the same guy in just ANOTHER thread that told us you had a 40 series????

Don't make me do my thing, or Sid will send me to the land of the band.

 

[mark123]

Ya I saw comet stamped into the drive and assumed both were comet then just found out driven is a max torque

 

[itsid]

Any chance this will work or should I just order a new 40 series driven.

Not a single chance, no... sorry.
you need a matching set (especially since the belts of this one and the series40 are different..)

again.. series20.. MAYBE;
series40.. not a chance, nope!

'sid

 

[mark123]

so I guess my best bet is to order a series 40 driven since I have 2 belts on the way. Thanks guys

 

[itsid]

check your jackshaft diameter..
if it's 3/4"
http://www.ebay.com/itm/40-Series-G...ash=item4646931fa3:g:lTYAAOSwHPlWeSiD&vxp=mtr

a clone will do nicely

'sid

 

[mark123]

Sounds good. my original is 5/8" but I might as well go up to 3/4" . only other changes would be new bearings jackshaftvand sprocket. Friend if mine is a machinist so could make the jackshaft. How do I determine if I need normal or reverse wound spring. jackshaftvand and engine are on the same side.

 

[mark123]

here are some pics. just would like to confirm if I need red spring or reverse yellow spring? The spring side of driven will have to go away from the engine.

 

[itsid]

if you mount the driven outboard (cam facing away from the engine) you need the reverse wound spring
(and have it properly installed and preloaded of course!!)

ALSO the driven should be able to float on the jackshaft (in order to align the sheaves with the belt) one belt width (7/8")
that's at least the PROPER way of doing it...
otherwise the belt will run offset (one belt width) and if the two pulleys are close together that's not exactly beneficial to say the least

'sid

 

[mark123]

Is it better to mount the other way so it does not need to float. I have no problem changing it around if need be. If I have to change it all would it be best to avoid 5/8 shaft and go with 3/4 or better yet 7/8. those driven clutches are available in all three sizes I see.

 

[itsid]

if you have enough room to mount it inboard as it's intended to be..
then do so.
jackshaft size.. difficult,
3/4" is enough I'd say.. then again cheap stock material in 3/4" can be weaker than quality stock material in 5/8"... soooo yeah *shrugs*
Whatever is most comfortable to get maybe??

sure thing: the beefier the better but you need to get a new jackshaft housing, bearings the jackshaft itself, a new sprocket and a couple of things I might forgot in this short list..
so be sure to complete the list and check everything for availability and prices..
ODD bearing sizes for example can get pretty expensive very quick.
I can't tell since I usually do not mess with imperial sized stuff much *shrugs*

'sid

 

[mark123]

Well I guess it would be too much work to switch it all around. Differential/final drive sprocket cannot be moved left or right so drive sprocket can't either, this mean driven clutch has to go with spring away from engine(with yellow spring). For some reason series 40 driven clutch are 20-30 bucks cheaper if bought with 7/8" bore. My buddy can make me a jackshaft 7/8" stepped down to 5/8" for existing jackshaft housing/bearings. In my case as I understand it the driven will have to float so would it be better to go with 7/8" bore or just keep everything 5/8". Would there be any noticeable difference in function and wear where it is floating?