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Old 04-26-2008, 11:14 PM   #1
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Default TC4 Alignment Issue

I have a Team TC4 with a Momba Max / 5700, 3S 5k Lipo. I have run into a few issues. Using an Integy Set-up Station, I have found that the rear toe is L= -2.25 and the R= -1.75. I have done the following;
Swapped set-up jigs around, flipped the clear toe angle jig, swapped lower arms left to right, replaced lower arms, swapped spindles let to right, swapped pivot pins* left to right, replaced alignment blocks with factory aluminum pieces. Nothing changes it except putting 3 shims on the front of the lower R Arm and 2 shims in the back of the left arm. This does NOT really fix it though.
Anyone have any suggestions?
*NOTE: I have also noticed a major inconsistency with the pivot pins front and rear. Some fit nice and tight, some feel loose and it follows the pin. You'd think I had a Nascar or something.
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Old 04-27-2008, 05:43 AM   #2
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Default tc4

It seems like your rear pivot block might be molded wrong. Have you tried the aluminum blocks? Or just try a new plastic one.
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Old 04-27-2008, 08:46 AM   #3
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Sorry, all blocks have been replaced with Aluminum and it still has alignment issues. What would be nice is an adjustable piece.
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Old 04-27-2008, 08:54 AM   #4
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Replace all the parts in that area with new ones something has to be bent or twisted.
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Old 04-27-2008, 09:33 AM   #5
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Read the opening statement closely and you will see that it seems to point to the chassis. I was wondering if others have noticed the same thing and what it takes to fix the problem.
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Old 04-27-2008, 11:37 AM   #6
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Have you driven it yet? Or is this all just setup board information? Is the chassis weight balanced left and right before taking these measurements? Is the ride height set? Lots of adjustments go into a correct setup board reading. If the car drives straight and does not display and ill handling effects then perhaps the reading is just taken wrong. If you are absolutely sure everything is right then measuring the chassis with precision calipers will tell you if the chassis is off.
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Old 04-27-2008, 05:01 PM   #7
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I had the same issue a few years ago with my TC3, from what i can remember i think i solved the issue by using either a yokomo or rayspeed alignment blocks.

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Old 04-28-2008, 12:09 AM   #8
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It pulls to the right and wears the left rear. I thought it might be a diff setting issue, maybe even with the front and have tried different things, but it still drifts to the right. As I said, I think I have a Nascar.
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Old 04-28-2008, 02:05 AM   #9
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If you are running the wheelbase shims on the rear arms like you said in the first post that will be making the car pull to the right since you have uneven wheelbase left and right.

Have you replaced the little plastic hingepin ends that fit into the toe blocks, they can get damaged and will upset the toe angles.
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Old 04-28-2008, 06:54 AM   #10
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the rear toe in is unsymmetrical ON PURPOSE to compensate for torque steer.
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Old 05-06-2008, 08:32 PM   #11
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Sorry. The car pulls to the left. I replaced or swapped everything, icluding new polished hinge pins (love these), aluminum mounts, moving the shims, etc. Still pulls. I have even played with the tension on the front and rear diffs.
I will modify the original rear mount since I now have an aluminum piece.
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Old 05-13-2008, 09:12 PM   #12
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Well, I found that the difference in toe angle did NOT change when using a front brace. So, I opened up the mounting holes on the front toe brace and secured it offset on the chassis. Now I have R=-1.25, L=-1. I took the car out and bingo, leaves hard and straight. Overall the car is WAAAAYYYY better. Now I'm going to contact Associated and find out what's up.
BTW: The foams I am using work great. Now all I need are some good rubber tires to try against them. So far, the best I have run are the HPI.
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Old 05-17-2008, 04:34 AM   #13
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Quote:
Originally Posted by 4BKT VET View Post
. Now I'm going to contact Associated and find out what's up.

I'd be very interested if you told us about their replies...

let us know !
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Old 05-17-2008, 08:07 AM   #14
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Normally the problem was in the hubs themselves. this was a big issue when the tc3 came out. get aluminum hubs.
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