Comet TAV2 alignment
- Thread starter BLiNdSiDe
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Yep... looks outta alignment to me... from what I see... the driver(unit connect to the engine) needs to come out more. The back(part facing the engine) of each unit is the line to align up.
I almost agree..
Yes it's out of alignment, no or "not sure" the driver needs to come out more.
unfortunately the important part is covered by the ruler, my guess is.. the driver needs to move in (closer to the engine) a bit.
Both inner sheaves need to align, but not their back
(the collar is not always identical on driver and driven)
The important part is that the inner faces (belt contact) line up
Since the one of the driven is covered by the ruler, I need to assume it's exact position.
So, the inner faces of the inner sheaves, whatever needs to be dne to achieve that
'sid
Yes it's out of alignment, no or "not sure" the driver needs to come out more.
unfortunately the important part is covered by the ruler, my guess is.. the driver needs to move in (closer to the engine) a bit.
Both inner sheaves need to align, but not their back
(the collar is not always identical on driver and driven)
The important part is that the inner faces (belt contact) line up
Since the one of the driven is covered by the ruler, I need to assume it's exact position.
So, the inner faces of the inner sheaves, whatever needs to be dne to achieve that
'sid
KartFab
Active member
Tire size and gearing/ weight?
very valid points!
But just another question.. is that a straight edge behind your driven pulley?
is it actually resting against the backside of the pulley?
on closer inspection it looks like the outer sheave of the driven isn't parallel...
(something's bent perhaps?)
might just be the camera angle playing tricks on me,
but might be caused by Grants questions above and cause for the rapid belt wear *shrugs*
Please post the second pic w/o the ruler again;
and answer KartFab's questions
'sid
But just another question.. is that a straight edge behind your driven pulley?
is it actually resting against the backside of the pulley?
on closer inspection it looks like the outer sheave of the driven isn't parallel...
(something's bent perhaps?)
might just be the camera angle playing tricks on me,
but might be caused by Grants questions above and cause for the rapid belt wear *shrugs*
Please post the second pic w/o the ruler again;
and answer KartFab's questions
'sid
Sorry for the incomplete information and thanks for the input!
The frame is a FKL Tomcat from I don't know when, I would guess it weighs 150 lbs, 300 with driver. Tires are 4.10 / 3.50 - 5 with a diameter of 10.75" jack shaft has a 10 teeth #41 sprocket, axle has 40 teeth. Speed at 3600 rpm should be 32mph at the max ratio of the torque converter.
In the 2nd pic of the first post I've put a plate on the flat edge of the flange toward the engine of the driven to rest the ruler on and project the position of this plane in relation to the same edge on the drive.
With the spacer provided in the kit the distance you see in the pic is 0.174" but the flanges have different width. The drive is 0.321" at the top and the driven is 0.247" at the top. So in order to put the inner sheaves at the same position, my 0.174" should need to be 0.074" which would means to add a 0.100" spacer to move the drive further away from the engine and when I do so the belt looks crooked in the pulleys.
But since the pulleys are different diameters and because the belt moves toward the engine when it climbs in the drive and in the opposite direction in the driven, I still don't know what my 0.174" should be.
Anyways your input is appreciated!
Here's the requested pic:
Here's what the belt looks like:
The frame is a FKL Tomcat from I don't know when, I would guess it weighs 150 lbs, 300 with driver. Tires are 4.10 / 3.50 - 5 with a diameter of 10.75" jack shaft has a 10 teeth #41 sprocket, axle has 40 teeth. Speed at 3600 rpm should be 32mph at the max ratio of the torque converter.
In the 2nd pic of the first post I've put a plate on the flat edge of the flange toward the engine of the driven to rest the ruler on and project the position of this plane in relation to the same edge on the drive.
With the spacer provided in the kit the distance you see in the pic is 0.174" but the flanges have different width. The drive is 0.321" at the top and the driven is 0.247" at the top. So in order to put the inner sheaves at the same position, my 0.174" should need to be 0.074" which would means to add a 0.100" spacer to move the drive further away from the engine and when I do so the belt looks crooked in the pulleys.
But since the pulleys are different diameters and because the belt moves toward the engine when it climbs in the drive and in the opposite direction in the driven, I still don't know what my 0.174" should be.
Anyways your input is appreciated!
Here's the requested pic:
Here's what the belt looks like:
XXXStevemanXXX
New member
It looks close enough, especially if its flat with the ruler. If its just a knockoff belt, it may just be fraying some loose edges they didnt trim off close enough. I would wipe up the rubber shavings and leave it alone until it snaps, then toss on another belt.
geewally
HI MOM it's me Wally! :o)
I also recently installed a new tav2, with maybe 15 hours on the belt ... lots of black dust, some visible belt wear ... I think yours is fine. I did measure things as you asked: driver .55", driven .83
Have fun kartin!
Have fun kartin!
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