Hi folks,
2004 100 Series, 4.2TD 1HD-FTE, I posted a thread a little while ago advising that after having everything replaced with OEM parts on the suspension, steering rack, CVs etc front and back, I had a knocking when turning on full lock/close to full lock in both directions and we had been trying to figure it out.
We had a look today and were able to consistently replicate the issue and found that on both sides (front left is worse), the adjustable bump stop which screws in and out of the front LCA is not sitting against the 'cup' on the rear of the hub knuckle correctly when turning hard.
When the hub turns, the small 'cup' on the rear is seemingly too low, meaning the adjustable bump stop on the LCA is hitting the top edge and causing the LCA to move and it's not pretty. We tried adjusting the adjustable bump stop but it didn't alter any of the geometry in this area.
Everything was replaced with brand new OEM, parts were verified against partsouq/Japan4x4, and a local shop near our LC guy sorted the tracking which was showing as perfect after the adjustment there.
Is there something I'm missing here? I couldn't see any reference to anything specific in the FSM which would dictate the heights etc, and there is no front camber adjustment from what I understand either.
A suggestion was made that the lower ball joints could be incorrect or causing the hub to sit too low, but these were as part of the whole assembly straight from Toyota in Japan.
Pics attached showing the contact areas.
Any thoughts/suggestions/prayers gratefully received!
Thanks!
2004 100 Series, 4.2TD 1HD-FTE, I posted a thread a little while ago advising that after having everything replaced with OEM parts on the suspension, steering rack, CVs etc front and back, I had a knocking when turning on full lock/close to full lock in both directions and we had been trying to figure it out.
We had a look today and were able to consistently replicate the issue and found that on both sides (front left is worse), the adjustable bump stop which screws in and out of the front LCA is not sitting against the 'cup' on the rear of the hub knuckle correctly when turning hard.
When the hub turns, the small 'cup' on the rear is seemingly too low, meaning the adjustable bump stop on the LCA is hitting the top edge and causing the LCA to move and it's not pretty. We tried adjusting the adjustable bump stop but it didn't alter any of the geometry in this area.
Everything was replaced with brand new OEM, parts were verified against partsouq/Japan4x4, and a local shop near our LC guy sorted the tracking which was showing as perfect after the adjustment there.
Is there something I'm missing here? I couldn't see any reference to anything specific in the FSM which would dictate the heights etc, and there is no front camber adjustment from what I understand either.
A suggestion was made that the lower ball joints could be incorrect or causing the hub to sit too low, but these were as part of the whole assembly straight from Toyota in Japan.
Pics attached showing the contact areas.
Any thoughts/suggestions/prayers gratefully received!
Thanks!