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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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11-03-2013, 11:53 PM | #1 |
Not Yet Wild
Join Date: Sep 2013
Location: Gold Coast, Florida
Posts: 40
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TXT High speed shimmy and front end parts
Now that I have her running up in low-mid 20's some new front end issues have arisen. looking for input before I start part swapping etc...
Cart is 2004 TXT PDS that just got new Alltrax DCX 500 and 2ga, 205/50-10 tires on aftermarket wheels, running 2" spacers at all four corners. Cart had excessive toe-out when I got it (to point tire wear was evident.) Re set toe to 1/8" out when I installed the tires n wheels and spacers, but never got to run it while sorting controller issues until today. Upon inspection, I get a little "wheel rattle" on both fronts when rocking top of tire with cart on ground, but bearings felt pretty tight and smooth when it was on stands for tires. Has me thinking ball joint/rack/uprights are the culprit... Also, noticed that steering arm that comes from rack is bent slightly, and my front axle/subframe is rather suspiciously shiny compared to rest of undercarriage...has me wondering about her prior life... What typically goes first on these? Looking for first hand experience and advice... Going to be installing factory lowering kit in a week or two along with Ausco disc brake kit I got from ScottyB and want to deal with front end and any other bearing or bushing issues at same time. Also going to be going up to 42V and thinking about an 8:1 rear end which should make it a 30+mph cart, so it needs to be tight and free of "shakes and rattles" Also best personal experiences as far as source for the parts would be helpful. |
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11-04-2013, 02:31 AM | #2 |
Gone Wild
Join Date: Aug 2010
Location: Marion, Ohio
Posts: 1,391
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Re: TXT High speed shimmy and front end parts
Worn kingpin bushings (they're plastic) would be at the top of my " to check" list.
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11-04-2013, 04:47 AM | #3 |
Gone Wild
Join Date: Sep 2012
Location: Savannah, GA
Posts: 2,760
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Re: TXT High speed shimmy and front end parts
Reset toe to 1/8" in, not out. Are you doing this with tires still on cart? Attached an image of the most accurate way a home mechanic can adjust toe.
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11-04-2013, 07:55 AM | #4 |
Gone Wild
Join Date: Nov 2010
Location: Jarrettsville, MD
Posts: 206
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Re: TXT High speed shimmy and front end parts
If anyone more qualified than I feels ambitious, I think that sportcoupe's tip on front end allignment could be used for a sticky on said subject. I have seen other good info and diagrams on the same subject in other threads that could possibly be combined. Just my 0.02$.
I personally was struggling with the best way to measure toe - sportscoupe idea is the best I have seen. |
11-04-2013, 07:47 PM | #5 | |
Gone Wild
Join Date: Jul 2013
Location: MinneSNOWta
Posts: 238
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Re: TXT High speed shimmy and front end parts
Quote:
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11-04-2013, 09:02 PM | #6 |
Not Yet Wild
Join Date: Sep 2013
Location: Gold Coast, Florida
Posts: 40
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Re: TXT High speed shimmy and front end parts
LOt's of good advice on driveway alignment setup on various racecar sights, as it is common to have to reset toe trackside after contact...it's real easy to set on our carts. Pretty good at that part. Will give the 1/8" in a try....that is usually more stable (but slows turn-in, lol)
Will take a closer look at kingpin bushings and rod ends tomorrow. Good idea on the alignment sticky... |
11-04-2013, 09:05 PM | #7 |
Not Yet Wild
Join Date: Sep 2013
Location: Gold Coast, Florida
Posts: 40
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Re: TXT High speed shimmy and front end parts
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11-09-2013, 08:23 PM | #8 |
Gone Wild
Join Date: Sep 2012
Location: Savannah, GA
Posts: 2,760
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Re: TXT High speed shimmy and front end parts
I learned the alignment trick from some jeep buddies on our full size toys. It carries through directly to out carts.
That was my 72v camo cart. With batteries everywhere in the rear I had to install my 12v accessory batteries under the front cowl. |
11-10-2013, 06:25 AM | #9 |
Gone Wild
Join Date: Jan 2013
Location: Sun Lakes, Arizona
Posts: 610
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Re: TXT High speed shimmy and front end parts
I took angle iron, notched it to fit around the spindle assembly and drilled 2 holes. This does the same thing but I can bolt it to the cart. When done it sits in the corner of the garage.
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11-10-2013, 11:23 AM | #10 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: TXT High speed shimmy and front end parts
Question:
Since toe-in is supposed to be measured at the outer edge of the tire, should the toe-in change based on the tire's radius, or is it just an angle? To clarify, if I run 18" tires, and I used your method, I'm assuming my measurements would be taken at 9" from the center of the axle. If I were to be running 24" tires (just for argument's sake) would I still use 9" so the angle is the same, or would I use 12" so the difference between the front of tire and back of tire is consistent, since a bigger tire probably has more "rubber on the road"? |
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