Tires for breakfast

Post by **wamQ45** » Wed Jun 30, 2004 4:53 am

My 94 Q with 194K+ has been eating front tires. It has gotten to the point that I am going to dump it..... I had Scottsdale Infiniti do $1100 worth of front end work and still the issue has not been resolved. Both front tires have extreem inside wear and I have gone through three pairs now. Scottsdale replaced the tension rods and upper links.

Post by **maxnix** » Wed Jun 30, 2004 4:53 am

Sound like ball joints, lower control arms, or something is still amiss. Have they checked everything? With that kind of mileage, I am sure the entire front end would need to be rebuilt by now. Especially considering the rubbe aging in the Phoenix heat and dust.

Post by **natsoundup** » Wed Jun 30, 2004 4:53 am

When was the last time you did shock rubber..... the reason why I say this, is that I noticed inner wear on the left front tire of the 90Q.

I pulled the strut...and the rubber between the top mount of the strut...and a metal cap was obliterated.....

I just ordered the new rubber from joe.... maybe they are related, maybe not..... I have only replaced shocks and upper links in 163k.... tires always wear consistently.... i put new ones on at 30k intervals...

Post by **wamQ45** » Wed Jun 30, 2004 4:53 am

They originally did the work in July. I took it back in November with the same issue they check it out and said nothing was wrong (only I had to replace my front tires again) Then last weekend I was doing my brakes and there it was inside wear to the point that the tires are nearly to the cords. I have yet another apointment this Friday.

Post by **AZhitman** » Wed Jun 30, 2004 4:53 am

W - Give me a call or shoot me an email... (602) 828-8908, or [email protected].

May want to cancel your appointment.

Post by **Jeff Williams** » Wed Jun 30, 2004 4:53 am

There is a TSB on this issue. The fix is to change the toe-in to the bottom side of the spec.

My car did this, until I changed the upper links, tension rods, and struts. I had the toe-in cheched, and asked them to toe the car in as much as possible (within factory specs). The tires still only last about 35,000 miles, but are not eating the inside like they were, before.

Post by **Q45tech** » Wed Jun 30, 2004 4:53 am

Only last 35,000 miles, that's 15,000 miles to long!As we all know after 20,000 miles tire failures rise exponentially.Unless all the 35,000 miles is done in 2 years or less!http://www-nrd.nhtsa.dot.gov/p...c.pdfUsing more than centered toe range just proves the bushings in the lower control arm are shot, allowing the running toe to change from zero to positive thus more negative [toe in] required!

Post by **wamQ45** » Wed Jun 30, 2004 4:53 am

Well Scottsdale Infiniti told me that they had fixed the problem and the alignment is fine but can't explain the inside wear. They tried every thing from the inside of the tires are too soft to I must be driving hard. The fact is they don't want to accept responsibility for 2 pairs of front tires. I asked them for a ful refund of the original work and their answer was no there was no issue with the work they performed. I will be speaking with the GM tomorrow. I am sure that it will go nowhere. I guess that I could walk up and down the sidewalk with a sign when they are having a big end of year sale, they still have a number of 04s in stock.

Can someone post the Alldata TSB 95010A?

Post by **Rex** » Wed Jun 30, 2004 4:53 am

Q45tech wrote:Only last 35,000 miles, that's 15,000 miles to long!As we all know after 20,000 miles tire failures rise exponentially.Unless all the 35,000 miles is done in 2 years or less!...

Jeff drives a ton of miles, so my guess would be he hit 35k in less than 2 years easy.

Post by **Jeff Williams** » Wed Jun 30, 2004 4:53 am

35,000 miles is about 8 months of driving.

Here is the text of the TSB I mentioned:

TSB: ITB95-010a Datet March 22, 1995APPLIED VEHICLE(S): All 1992-95 Q45's (G50) equipped with Dunlop SP Sport D80 V4 tiresAPPLIED VIN(S): All prior to 1995 JNKNG01D2SM35061APPLIED DATE(S): Prior to December 14, 1994

SERVICE INFORMATIONSome Q45 vehicles equipped with Dunlop SP Sport D80 V4 tires may experience an inside edge shoulder wearon the front tires. This condition may be aggravated by a front toe-out condition. The tire design has beenmodified to reduce inside edge shoulder wear.

SERVICE PROCEDUREInspect and measure the inside shoulder edge tread depth with a tread depth gauge at the location illustratedbelow (10mm in from the edge of the shoulder tread) and perform the indicated service action in the followingtable.

Shoulder Tread Depth Service Action4 to 5/32" No Service Action required1 to 3/32" Inspect front toe and adjust as necessary*.Rotate the tires front to rear.0/32" Replace worn tires.Inspect front toe and adjust as necessary*.

*It is preferable that the front toe be adjusted to the maximum toe-in end of the specification.

Tire Proration Adjustment:If the tires are to be replaced, measure the center tread depth as illustrated below at three (3) locations aroundthe circumference of the tire. Average the three (3) measurements and use the proration schedule found in thewarranty manual for any warranty cost adjustment.

PARTS INFORMATIONDESCRIPTION PART #/PFP QUANTITYDunlop SP Sport D80 V4 DL21565R15B DL21565R15AS

NOTE: These tires are only available through Infiniti parts. The modified tires are not available from your localDunlop dealer at this time.

CLAIMS INFORMATION"Release 7.0" Dealers: Submit a standard tire claim using the following coding:PNC SYMPTOMB0017 7X"Release 8.0" Dealers: Submit a "Primary Part" claim using the following coding:

If you have adobe acrobat, I can send you the TSB. shoot me an email:

[email protected]

Post by **szh** » Wed Jun 30, 2004 4:53 am

Jeff Williams wrote:35,000 miles is about 8 months of driving.

Wow! :shocked2

Z

Post by **Q45tech** » Wed Jun 30, 2004 4:53 am

You never said what brand size tire you were running in these extreme Az conditions.

You obviously cannot be running the oem designed tires as they are no longer available.

In the oem 15" size very very very very few tires [inexpensive ones] can survive on the front.

Post by **wamQ45** » Wed Jun 30, 2004 4:53 am

Kumho ECSTA Supra 712 Size:245/45-17 WR Speed Rated

Post by **texasoil** » Wed Jun 30, 2004 4:53 am

Instal a ftont strut tower brace and preload it to get the camber back down to -0.5 degree. The car probably has experienced some hard bumps and the strut towers are bent some, the springs sagged, the strut rubber mounts thinned, the spring mount rubber gone, etc, all increasing the negative camber. Also, unless they have been replaced, the lower control arm inboad bushings (rubber) are probably shot, also increasing the negative camber (tire leans in at the top)

With the front end running at the minimum end of camber range, mid to max toe-in, it will not chew up the tires.

Post by **texasoil** » Wed Jun 30, 2004 4:53 am

Install a ftont strut tower brace and preload it to get the camber back down to -0.5 degree. The car probably has experienced some hard bumps and the strut towers are bent some, the springs sagged, the strut rubber mounts thinned, the spring mount rubber gone, etc, all increasing the negative camber. Also, unless they have been replaced, the lower control arm inboad bushings (rubber) are probably shot, also increasing the negative camber (tire leans in at the top)

With the front end running at the minimum end of camber range, mid to max toe-in, it will not chew up the tires.

Tires for breakfast

Tires for breakfast

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