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Author Topic:   forward bite
KEVIN8WADDELL
Dirt Roller

Total posts: 12
posted January 28, 2001 11:16 PM
We have had a sudden loss of forward bite. We run a 4 link suspension on a DW8 dirt works car. The car is fine in the turns, but as soon as i hit the straightaway it just starts spinning. Does anyone know of anything that could be the problem?

Roadhzrd
Dirt Maniac

Total posts: 101
posted January 28, 2001 11:27 PM UIN: 28276986
If it was working fine before you probably have something binding. The torque arm must be clean and free moving, that will kill bite real quick. Check all the other moving parts on your rearend for freedom of movement and maybe double check the ride hieght.

A2KY2K88
Dirt Full Roller

Total posts: 58
posted January 29, 2001 01:07 PM
MAKE SURE YOU HAVE THE RIGHT AMOUNT OF PINION ANGLE AND MAKE SURE THAT YOUR TORQUE LINK IS WORKING PROPERLY(HAS ENOUGH TRAVEL). ALSO MAYBE CLUTCH SLIPPING???

KEVIN8WADDELL
Dirt Roller

Total posts: 12
posted January 29, 2001 03:17 PM
I will check all of the moving parts under the rear. And im pretty sure the ride height is correct, since we checked it the other
day. We took the torque arm off and cleaned it and it seemed to be pretty free, but we cleaned it anyway. We run around 10 degrees pinion angle and change the U-joints every two weeks. And when you say make sure the torque arm has enought travel, Could you explain that a little to me? The clutch should not be slipping since we just got a new one at the first of the year.
Thanks for all of the help.

Anymore suggestions?

dirtrackracer
Dirt Full Roller

Total posts: 26
posted January 29, 2001 04:16 PM
Pinion angle DOES NOT add bite,so take it down and run your u-joints for a couple years,that is crazy to change them every two weeks.Save alot of money and time for things that you really need.

MOD RACER#93
Dirt Freak

Total posts: 251
posted January 29, 2001 07:53 PM
Have you scaled the car lately? If not scale it and compare the numbers from the last time you did. Mabey a spring is going away and weight is moving around. Also move all your shocks to check for bumps or bends. I've had that happen before. Do you have one of those afco torque links? Might be the problem....

Roadhzrd
Dirt Maniac

Total posts: 101
posted February 01, 2001 01:46 AM UIN: 28276986
another thing you might try is to take the shocks off and then bounce the chassis up and down. It's easier to check for binds that way.

KEVIN8WADDELL
Dirt Roller

Total posts: 12
posted February 01, 2001 04:42 PM
Thanks everybody for the suggestions, but i think we probably found it. Its not actually a forward bit problem at all. The brand new clutch i talked about in previous post, seems to be no longer brand new. It was completely wore out.

Thanks everyone
Kevin Waddell #K8

iaracer
Dirt Full Roller

Total posts: 59
posted February 01, 2001 07:04 PM
If you are using a hydraulic t/o bearing pay close attention to set-up tolerances. If you are too tight or too loose it can prematurly wear the clutch and cause problems. One more thing to check is the pilot bushing.

Hope this helps.

MOD RACER#93
Dirt Freak

Total posts: 251
posted February 01, 2001 07:29 PM
You might consider going to a ram type coupler. This way you are direct lock up. You can start the car in gear. Only use the cone clutch if you are being tecked and have to. I used this type my first season after switching from glides. I never hooked up linkage to make it work. I got tecked one time in a big race and I had my dad push me with a four wheeler across the pad for them to measure wheel base and set-back. They didn't even care that the car was DIRECT drive hookup....Just something to consider.

KEVIN8WADDELL
Dirt Roller

Total posts: 12
posted February 02, 2001 03:39 PM
iaracer,
I will check the setting on our hydraulic t/o bearing, the motor has been pulled wuite a few times this year and not been checked


MOD RACER#93,
My dad ordered on of those new clutches they came out with, that uses the regular clutch, but you have to hold it halfway for it to be nuetral and then puch it down to get the car rolling then you let it completely out to directly engage it similarly to what you explained.

Thanks for Everything,
Kevin Waddell #K8

[This message has been edited by KEVIN8WADDELL (edited February 02, 2001).]

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