trilerian

iTrader: (51)

Better servo saver? Do you run an aluminum servo horn? Make sure the couplers are really free and oiled.

JC3

iTrader: (8)

This happened to my friends car tonight. He bought it used from a guy that ran it with a 17.5. No explanation as to why it broke. We advised him to check his drive line for bind, etc,. If we find anything we'll let you know.

eR1c

iTrader: (2)

I have a question (sorry if its been answered somewhere in the previous 198 pages in this thread).

I recently picked up a used 7.1, I tore the entire car down and cleaned every part and checked each for wear and damage. I am now rebuilding and notice that the manual calls for a rubber seal (shaped like a shamrock) to be used in the 7.1's oil filled diff'. I did not see this rubber seal present when I tore the car down. I do see the rubber seals for sale online and found the part number. I'll place an order, but curious does the rubber seal go into the groove that is present on one half of the diff and get sandwiched between the two halves (when put back together)? I see that the other half of the diff has a raised area that mimics the shape of the rubber seal, it looks like that raised area would sandwich the seal between it and the groove on the other half of the diff. -Is that correct?

thanks,

JC3

iTrader: (8)

Yes, that is correct. The seal goes into the groove. Make sure that it lays flat as sometimes they tend to twist a bit.

tbrymer

iTrader: (10)

My buddies BD9 did the same thing on Saturday.

eR1c

iTrader: (2)

Thanks!

jpx

eR1c

iTrader: (2)

thanks, yeah, I triple checked ...the grooved area is hard and there is no seal in there. I also checked my work area, etc... to see if it fell out when I split the two halves apart. Doesn't look like there is one present or was one, ..none the less I've already ordered a new seal. ...I am noticing quite a few other minor things that are off w/ this car, fortunately I have torn the entire thing down, am in the process of cleaning everything and then will rebuild and replace anything that is worn or broken. I have a seriously bent body post which wasn't noticeable until I removed the bumper (this will slightly effect the position of the body I mount). Also there was an extra shim on one side of the front A-arm yet the other A-arm did not have the same shim (one side had 2 small shims the other only 1). -so not surprised that a seal in the diff' was missing w/ all the other little things. I am guessing this car was put together quickly and/or not carefully. (got this on eBay, for pretty cheap, ..going to use it for VTA for my 12 yr son who is really enjoying racing).

jpx

JC3

iTrader: (8)

I've purchased two used TC7.1's. In both cases, I've been shocked at how poorly the kits were put together. Parts in the wrong places, thread locker on everything, bad bearings, missing washers, DCV's that were never serviced, etc,. Like you, I disassembled and overhauled both of them to like new condition. 100% satisfied with them after weekly practices and races for over six months now. AE is a quality product for sure.

beyondthepack

iTrader: (5)

davidl

iTrader: (41)

I have experienced this, but it took a full speed collision with a barrier that didn't move when I hit it. It doesn't always break like this, but it does happen. Also, the piece that this drive shaft connects to, called a coupler tube, is a cast steel part that can fracture under the same, full speed hit. This is why I do not use the aluminum axles.

JC3

iTrader: (8)

Yes, another guy I race with had a coupler that split in half the other day. No obvious impacts as he's a good driver. Might just have been a cumulative effect.

YoDog

iTrader: (28)

Is the horn to the right looking from the rear of the car? If so, that's likely your problem. It's been my experience that the horn should be slightly tilted outward (left) at center/neutral.

JC3

iTrader: (8)

I always offset my servo horn/saver to the right looking from the rear. So, I always have uneven left right EPA settings. I'd say that if you want them even, set the servo horn straight up and down. Or, offset the servo horn and then limit the EPA left/right to 80/80.