International Tracking Problem

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

monkeyboybongo

International Tracking Problem

Post by monkeyboybongo » Sun Aug 31, 2008 1:10 pm

Just bought a pair of all-weather tyres for bongo and please note that this is in germany. I asked the chap in the garage to do the tracking as well but he said he didnt have the values for the bongo, uses a laser machine set-up therefore he couldnt do it.

I said I had the values for the tracking (between -1 and +7mm toe in) but he said he still couldnt do it because his computer programme didnt have the bongo listed.

Was I fobbed off because perhaps my german wasn't up to scratch/or p**sed him off for some reason or did he have a genuine issue?

I don't know how these modern laser alignment machines/computer programs work so could I go to a garage with older traditional kit and give them the figures to do? What do I need the garage to have (kit-wise) in order for them to sort out the tracking?

Thanks in advance

MBB
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: International Tracking Problem

Post by teenmal » Sun Aug 31, 2008 2:46 pm

Hi Monkey,laser is the most accurate,if they punch in a vehicle with similar values it should be ok.

Ps always trust your mechanic if you put your life in there hands. :shock:
scanner
Supreme Being
Posts: 7247
Joined: Wed Sep 19, 2007 10:20 pm
Location: Cambs

Re: International Tracking Problem

Post by scanner » Sun Aug 31, 2008 3:54 pm

The trouble with a lot of stuff these days it's not so much "the computer sez no!" as much as "the computer doesn't know what you are on about" - if it isn't in the list it can't do it.

Ask him if it has a manual set up mode, if it has he should be able to punch in the values for a Bongo - if it hasn't he can't.

He's probably just a Kwikfit style button pusher, who just can't be rrssed if it isn't in the menu.
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: International Tracking Problem

Post by teenmal » Sun Aug 31, 2008 4:03 pm

scanner wrote:The trouble with a lot of stuff these days it's not so much "the computer sez no!" as much as "the computer doesn't know what you are on about" - if it isn't in the list it can't do it.

Ask him if it has a manual set up mode, if it has he should be able to punch in the values for a Bongo - if it hasn't he can't.

He's probably just a Kwikfit style button pusher, who just can't be rrssed if it isn't in the menu.

Hi scanner,remember this guy is German.?, :lol:
User avatar
2sticks
Bongolier
Posts: 173
Joined: Mon Jun 26, 2006 9:38 am
Location: West Essex

Re: International Tracking Problem

Post by 2sticks » Sun Aug 31, 2008 4:21 pm

I think you will find that the correct geometry is:

- 1.7 mm

That is: One point seven millimetres toe in.

A lot gets lost in translation in the manuals.
scanner
Supreme Being
Posts: 7247
Joined: Wed Sep 19, 2007 10:20 pm
Location: Cambs

Re: International Tracking Problem

Post by scanner » Sun Aug 31, 2008 4:27 pm

teenmal wrote:
scanner wrote:The trouble with a lot of stuff these days it's not so much "the computer sez no!" as much as "the computer doesn't know what you are on about" - if it isn't in the list it can't do it.

Ask him if it has a manual set up mode, if it has he should be able to punch in the values for a Bongo - if it hasn't he can't.

He's probably just a Kwikfit style button pusher, who just can't be rrssed if it isn't in the menu.

Hi scanner,remember this guy is German.?, :lol:
Exactly - He is only following orders..........................
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: International Tracking Problem

Post by teenmal » Sun Aug 31, 2008 4:35 pm

Hi 2Sticks,could you tell me what 1.7mm is in inches,?.
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: International Tracking Problem

Post by francophile1947 » Sun Aug 31, 2008 5:19 pm

teenmal wrote:Hi 2Sticks,could you tell me what 1.7mm is in inches,?.
0.06692893
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
2sticks
Bongolier
Posts: 173
Joined: Mon Jun 26, 2006 9:38 am
Location: West Essex

Re: International Tracking Problem

Post by 2sticks » Sun Aug 31, 2008 6:02 pm

Exactly, or as near as makes no difference John.

Remember that -1.7 mm is the correct value for standard
width tyres, 195. For different width tyres you may get a
very slight improvement by adding or subtracting up to a
maximum of 0.3 mm.

A positive value is toe OUT, if you have 7 mm of this then
you will be wandering all over the road with plenty of tyre
wear.

Find yourself a good old fashioned mechanic with good old
fashioned equipment, or at least with the ability to use the
new stuff with intelligence, it's relatively simple.
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: International Tracking Problem

Post by teenmal » Sun Aug 31, 2008 6:35 pm

Hi 2Sticks,this gets very confusing,I thought you aligned the wheels not the tyres.We learn every day.

Regs Mal..
scanner
Supreme Being
Posts: 7247
Joined: Wed Sep 19, 2007 10:20 pm
Location: Cambs

Re: International Tracking Problem

Post by scanner » Sun Aug 31, 2008 6:49 pm

teenmal wrote:Hi 2Sticks,this gets very confusing,I thought you aligned the wheels not the tyres.We learn every day.

Regs Mal..
You align the wheels because they are the "hardware" that is rigidly fixed to that which can be adjusted - the hub.

The tyres are fitted to the wheelrims and (if fitted correctly) should be properly aligned with the rims. The tyres are the bits in contact with the road and also the bits that need to be correctly aligned if they are to wear correctly. Wheels don't wear, tyres do - but tyres aren't rigid enough to have the alignment equipment attached to them, so it is the wheels that the alignment equipment is fitted too...

Now what was the question again?
User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: International Tracking Problem

Post by missfixit70 » Sun Aug 31, 2008 8:47 pm

I thought -1.7 was the WRONG translation, the correct translation is -1 to 7mm :?
Parallel works well for mine & many others :D
You can't polish a turd - but you can roll it in glitter.
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Re: International Tracking Problem

Post by dandywarhol » Mon Sep 01, 2008 12:04 am

The Factory setting is -1~7mm 2sticks - thats 1mm toe out to 7mm toe in. There's such a variance because the wishbones have quite a lot of soft rubber in them and they're pretty high profile tyres.

As Kirsty says, zero seems to do the job within the tolerances.

What's equally impostand (and rarely checked) is toe out on turns, because you can set the tracking correctly at zero but the track rods might be different lengths or bent.
The T.O.O.T, according to the manual is:
39 deg on the outside wheel while the inner should be turning 35 deg, with 2 deg tolerance.
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
User avatar
2sticks
Bongolier
Posts: 173
Joined: Mon Jun 26, 2006 9:38 am
Location: West Essex

Re: International Tracking Problem

Post by 2sticks » Mon Sep 01, 2008 8:37 am

DW

While I know you are usually right in these matters, and I take your
point regarding the turning toe, however, as a static toe setting of
+ 7 mm equates to a tad over 1 degree (angle), I think this could
cause excessive tyre wear. I would much prefer to stay within the
range of - 1 to + 3 mm. At my age I find it safer to have a small
amount of understeer, but if I was a bit younger I might try some
neutral or toe out tracking instead.

As this is all uneducated conjecture, I am quite prepared to be shot
down in flames. Where did I go wrong ?.
DemonAV
Bongolier
Posts: 151
Joined: Thu Apr 21, 2005 8:59 pm
Location: Russia, Moscow
Contact:

Re: International Tracking Problem

Post by DemonAV » Mon Sep 01, 2008 1:12 pm

2sticks wrote: A lot gets lost in translation in the manuals.
Here scanned page from original manual:
Image
Russian Mazda Friendee Club
http://www.mazdafriendee.ru
Locked

Return to “Techie Stuff”