Death Wobble - Revision history

Bosanek: Added a remark about ensuring correct tyre pressure before balancing a wheel

2021-12-05T12:17:40Z

Added a remark about ensuring correct tyre pressure before balancing a wheel

2021-01-17T12:17:48Z

Added the article into gen2 categories

2019-12-17T08:23:28Z

Minor phrase correction

2019-12-17T08:20:40Z

Minor phrase correction

2019-12-17T08:03:52Z

Significantly expanded the chapter on wheel balancing with new info on tyre on wheel mounting alignment

2019-11-06T07:02:29Z

Typos

2019-07-06T21:05:31Z

Added a new link

2019-07-06T21:03:03Z

Link correction

2019-07-06T21:01:41Z

Added a new link

2019-03-06T09:34:05Z

Reprocessed the article to clearly indicate which content refers to Jimnys gen3 and which refers to Jimnys gen4

@@ Line 330: / Line 330: @@
 * If your tyres and road wheels are not warped, then balance your wheels again (even if you had done recently), but this time in a ''well equipped'', ''well trained'' and ''well reputed'' tyre workshop.
 * Personally check with them if they have the fully & properly matching tool/seat for '''your''' wheels when they mount the wheel on their balancing machine.
 ** Some poor / skimpy / unethical tyre workshops will improvise with improperly matching seats for wheels on their balancing machine just to get the job (apparently) done and take the customer's cash.

← Older revision		Revision as of 12:17, 17 January 2021
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	{{Edited}}		{{Edited}}
		+
		+	[[Category:Common_Problems - gen2]]
		+	[[Category:FAQ - gen2]]

	[[Category:Common_Problems - gen3]]		[[Category:Common_Problems - gen3]]

@@ Line 296: / Line 296: @@
-* The primary reason why balancing is done in the first place is that neither tyres nor wheels are perfectly balanced themselves.
+* The primary reason why balancing is done in the first place is that neither tyres nor wheels are perfectly balanced themselves, nor are they perfectly round.
 ** When an object is unbalanced, it means that it has unequal weight distribution inside it.
 ** Rotating unbalanced objects (when object's center of mass is out of alignment with its center of rotation) creates a typical moment of wobbling movement.

@@ Line 310: / Line 310: @@
 * Most (but not all) tyre manufacturers provide some type of simple aid in a form of a printed yellow and/or red dot on the sidewall of the tyre.
-** The yellow dot indicates tyre's lightest point, while a red dot indicates tyre's widest point.
+** The yellow dot indicates tyre's lightest point, while a red dot indicates tyre's widest point (where its radius is largest).
-* Also, most wheel manufacturers drill the valve stem hole in the heaviest point on the wheel (to partially mitigate that extreme), and some wheel manufacturers also punch or drill a small indicator hole in wheel's narrowest point (or even put an indicating sticker).
+* Also, most wheel manufacturers drill the valve stem hole in the heaviest point on the wheel (to partially mitigate that extreme), and some wheel manufacturers also punch or drill a small indicator hole or even put an indicating sticker in wheel's narrowest point (where its radius is smallest).
 * Therefore, you could have a tyre with either red or yellow dot or even both dots (or no dots ....), and you could have a wheel with only the valve stem hole or with a small indicator hole or sticker as well.
 ** So, what to align with with?

@@ Line 291: / Line 291: @@
 === Wheel balancing ===
@@ Line 299: / Line 335: @@
 ** If you have steel wheels, insist that they use the seat that uses the wheel bolt holes ("stud centric balancing") to secure the wheel to the balancing machine instead of using the more common (and quicker for them to get the job done) cone seat through the center of the wheel ("hub centric balancing").
 *** The "hub centric" balancing has a risk of giving different results on different testing iterations - you want to avoid that risk.
+* Also don't forget to try to apply the tyre/wheel mounting alignment principles (mentioned in other parts of this chapter) to minimize the amount of needed balancing in the first place.
+** Many tyre fitter's don't care to care about this mounting alignment!
@@ Line 327: / Line 356: @@
 Example of such a machine is "Hunter RoadForce" wheel balancer.
@@ Line 338: / Line 375: @@
 Beads are sort of "alternative medicine" compared to conventional balancing weights, but if it cures, then it's good!

@@ Line 347: / Line 347: @@
 {{spanner|Guide: [[Tie rod end replacement|'''"How to replace tie rod ends"''']]}}
 * You can buy new ones from the BigJimny Shop, which sells both (OEM) ones and aftermarket made ones.
@@ Line 452: / Line 451: @@
 {{spanner|Guide: [[King pin bearing change|'''"How to replace king pin bearings"''']]}}
 * The bearing manufacturer for Suzuki is KOYO.
@@ Line 516: / Line 514: @@
 {{spanner|Guide: [[Front wheel bearing replacement|'''"How to replace a front wheel bearing"''']]}}
 * However, in order to replace a front wheel bearing, you absolutely need a special tool to undo the front wheel bearing nut.

← Older revision		Revision as of 21:05, 6 July 2019
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	* Polyurethane bushes sometimes do not have slots cut in them that the original Suzuki ones have, these can mean a firmer ride on the road.		* Polyurethane bushes sometimes do not have slots cut in them that the original Suzuki ones have, these can mean a firmer ride on the road.
	* However, if you are battling death wobble and are tired of experimenting, then buy the OEM rubber bushes.		* However, if you are battling death wobble and are tired of experimenting, then buy the OEM rubber bushes.
		+
		+
		+	The following forum threads deal with the topic of polyurethane bushes:
		+	# [http://www.bigjimny.com/index.php/forum/7-jimny-technical/65092-poly-bushes-for-panhard-rods-are-they-worth-it?start=0 "Poly bushes for panhard rods - are they worth it"]
		+	#* Both panhard rod and radius arm bushes are discussed in this topic.

@@ Line 428: / Line 428: @@
 * Unfortunately, Suzuki does not sell lateral rod bushes separately. They sell only the entire lateral rod with the bushes already installed.
-* The only known aftermarket manufacturer which sells ''rubber'' lateral rod bushes for Jimny 3 is [www.febest.com Febest].
+* The only known aftermarket manufacturer which sells ''rubber'' lateral rod bushes for Jimny 3 is [http://www.febest.com Febest].
-** Compatible part is [https://febest.de/en/details/rear_transverse_rod_bushing-szab_041 SZAB-041].
+** Compatible part number is [https://febest.de/en/details/rear_transverse_rod_bushing-szab_041 SZAB-041].
 * You can buy replacement ''polyurethane'' lateral rod bushes from the Big Jimny Shop : [http://bigjimny.com/store/index.php?_a=product&product_id=28]

@@ Line 4: / Line 4: @@
 == Introduction ==
+{{Gen3|}}{{Gen4|}}
 * "Death Wobble" is a phenomenon where the steering wheel shakes, usually at around 35-45 mph (60-80 km/h).
@@ Line 13: / Line 13: @@
 * With big aggressive mud terrain tyres, or retreaded (remoulded) tyres, a little steering wheel shake may have to be lived with.
@@ Line 38: / Line 41: @@
 == Theory behind the phenomenon of "death wobble" ==
+{{Gen3|}}{{Gen4|}}
 "Death wobble" is a known "genetic trait" of all vehicles which have '''dependent''' front suspension (typically solid front axle - SFA).