DB-01 Pulling to the left on acceleration

[JeepnMike 150]

I haven't totally tore it apart yet to find the problem, but do you guys have any ideas why it would want to turn left when accelerating? I have had a dogbone fall out and it is sort of behaving a little like that (like a locker with one side axle broken). All dogbones are intact and have given a twist check to make sure the diffs weren't grinding like a differential grenaded.

Any tips are appreciated!!

[HunterZero 75]

Has the car had any heavy crashes? Could be a bent suspension hinge pin.

- James

[JeepnMike 150]

Has the car had any heavy crashes? Could be a bent suspension hinge pin.

- James

It has had a couple of heavy hits lately. I will definitely check that. Thanks James!

[tonysmini 19]

it could be a sticky bearing, I've had a TA03 that used to do this, one bearing was a bit tighter than the rest.

[mike_o 35]

If it's ONLY on acceleration I'd look for a diff problem. Unless it's a broken suspension bending under load or it's tire slipping on the rim :-)

[dimblum 1]

Your front toe-in or toe-out could have been slightly misaligned due to a bad collision. Check your turnbuckles and make sure none of them are bent, then check to make sure the toe-in / toe-out is properly adjusted.

Just to be safe, you may want to check your camber as well.. Your front end will 'stand up' under acceleration - if the negative camber is maladjusted on one wheel it might cause it to slightly pull left or right; its less likely, but it may be worth checking.

[VinceVegaUK 0]

Your front toe-in or toe-out could have been slightly misaligned due to a bad collision. Check your turnbuckles and make sure none of them are bent, then check to make sure the toe-in / toe-out is properly adjusted.

Just to be safe, you may want to check your camber as well.. Your front end will 'stand up' under acceleration - if the negative camber is maladjusted on one wheel it might cause it to slightly pull left or right; its less likely, but it may be worth checking.

I had the little grub screw fall out on my UJ's on the front that gave me 3 wheel drive and it pulled left! I also had the same grub screw come half out and wedge in the diff cup. Also try rebuilding the diff and check all that spins, spins smoothly and non of any of the drive train dependent bearings are sticking. also check the centre pulleys are fit correctly and the belts are running well on them.

Hope you figure it out.

l

Oh and a common mistake is mounting some of the parts the wrong way around causing tie rods and ball ends near the wheels to rub on the rim.

Later

VV

[VinceVegaUK 0]

I had the little grub screw fall out on my UJ's on the front that gave me 3 wheel drive and it pulled left! I also had the same grub screw come half out and wedge in the diff cup. Also try rebuilding the diff and check all that spins, spins smoothly and non of any of the drive train dependent bearings are sticking. also check the centre pulleys are fit correctly and the belts are running well on them.

Hope you figure it out.

l

Oh and a common mistake is mounting some of the parts the wrong way around causing tie rods and ball ends near the wheels to rub on the rim.

Later

VV

"ball ends... ...rub on the rim!" Hehehehehe

[JeepnMike 150]

Thanks for all of the replies guys! I gave all of the control arms and mounts a good one over and they all look straight and true. I hate tearing apart the diffs, but that looks like my next project. Coincidentally, I just bought a whole box of spare parts from HK that should be here in a few days. I might just throw all of my current control arms and components in the spare parts bin and put all new stuff in while I have it apart. I am just bummed because I just had it all tore apart to put some heavier oil in the shocks (which I am going to take out ~ 35 out back, 40 up front if anybody has any suggestions - TRF dampers).

Thanks again

[tonysmini 19]

you haven't mixed the shocks have you? 35's on one side and the 40's on the other, that could do it as the shocks would react differently under acceleration and breaking.

[Percymon 2183]

Are all the Tyres glued to the rims? One slipping on a rim would result in the diff applying power unevenly across the axle.

Easy to check, swap Tyres left to right.

[JeepnMike 150]

you haven't mixed the shocks have you? 35's on one side and the 40's on the other, that could do it as the shocks would react differently under acceleration and breaking.

I do fancy a cold beverage while I work on my cars.. I don't *think* I could have gotten that wrong, but it could happen. LOL. I am going to put some softer oil in them anyways, will rule that one out while I am tearing everything else apart. - Praying I don't lose a freaking ball bearing while the diff is apart.

BTW, I almost over-glue the tires on so I am certain I don't have any tires slipping on the wheels.

Thanks again for the suggestions!

[stu22 12]

Since you are running dog bones try running the thing with only the front set, and then do the same with only the rear and try to isolate the problem to one end or the other.

A drive train issue with the front or rear should go away when that end is not powered. A suspension/setup problem will still be there but since it's not getting any power is should be less pronounced.

Also, find out what it does under braking.