Date: Mon, 28 Feb 2000 21:06:24 -0500
Reply-To: Derek Drew <drew@INTERPORT.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Derek Drew <drew@INTERPORT.NET>
Subject: Wolfgang's Killer 16" Tire Rsh--part 3
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<blockquote type=cite cite><br>
<font face="Times New Roman, Times">IN FRONT:<br>
(A) Plastic border in front on over 20cm length completely<br>
away-sharpen and the metal edges away-sharpen and again<br>
paint.<br>
(B) The center section remains intact.<br>
(C) The art off border at the rear part of the wheel housing<br>
dismantle (can later with normal tires again installed<br>
become). Metal edges over 25cm away-sharpen and paint.<br>
Also a fist in front remains clearance between tires and<br>
Sheet metal.<br>
<br>
After 10.000 km travel (about 1500 km stone and a little<br>
Sand runway) I am content, particularly where the largest<br>
Clearance is used. Not once became those<br>
Understructure touched, gives a reassuring feeling.<br>
Perhaps one needs no or many fewer<br>
Body work with the small brother Michelin 7,00 R 16 C<br>
4x4 OR 108N XZ2. I estimate that one only about 2 cm<br>
Perhaps clearance wins and receives one also for<br>
Travels at home the TUEV benediction.<br>
<br>
< Michel Thevissen ><br>
<br>
<br>
</font><font face="Times New Roman, Times" size=5><b>Syncro 14 "
tire re-equipment</font></b><br>
<br>
</b><font face="Times New Roman, Times">Generally applies to the 14
" - Syncro to something similar as to the 16"-er.<br>
Also here one should speak first with TUEV officials and<br>
Free movement investigations execute. Those<br>
Body tolerances were already addressed. With that<br>
I recommend that to free movement investigations in each case<br>
Vehicle fully to cabinets and here the steering angle in<br>
to check all positions. With extreme driving conditions,<br>
several bumps consecutively, feather/spring piercing, becomes<br>
the distance of the tires to the body still smaller.<br>
<br>
</font><font face="Times New Roman, Times" size=4><b>Bottlenecks are
situated with the 14"-Syncro:</font></b><br>
<br>
</b><font face="Times New Roman, Times">The measure of all things might
the rear diagonal steering wheel (rocker)<br>
its, which around approx. 25mm more briefly than executed with the
16"-er<br>
is. There is to be also 14"er with the long rocker ex factory<br>
?!<br>
<br>
The wheel arches in front limit, if it not<br>
are done over again, the tire size as the first. Here offers<br>
to do itself over again the possibility similarly the 16"-er
and<br>
To install wheel arch widenings. In the back it gives by those<br>
short trailing link under normal conditions no problems to<br>
Body.<br>
<br>
Of the further with the 16"-Syncro described bottlenecks in<br>
still the battery box would be allowed to do front wheel housing at the
earliest<br>
a role play. However also only, if one the workstation in<br>
rear diagonal steering wheel by max. Tire size out-provokes.<br>
<br>
Here it is still mentioned that Syncro drivers, also<br>
Tire chains to install would like, particularly with the 14"-er
fast<br>
at the boundary in the described diagonal steering wheel arrive<br>
can. A prerequisite is generally a very fine-linked chain.<br>
<br>
For the base 185/14 and 205/70/14 are simplest it up<br>
to reequip 205/14, whereby it with the TUEV under normal conditions
none<br>
Problems to give would be allowed to do (nevertheless beforehand
questions; each examiner<br>
sees the things differently. The problem with a possibly necessary<br>
Exhaust appraisal was already mentioned). Tachoanpassung is<br>
possibly necessarily. Body work not. Further possibilities are<br>
similarly the 2WD-bus, whereby here on identical<br>
Rolling circumferences at rear and front axle to noted is (Visko<br>
Clutch). Same sizes and tire types are recommended<br>
to use in front and in the back.<br>
<br>
The following re-equipment, base 205/14, are theoretical<br>
also for the 185-er base possible. The translation becomes however<br>
long, which itself particularly with developed vehicles noticeably<br>
makes. This apart from the accelerating power<br>
also cross-country capability (gradeability, heavy, more loosely<br>
Background...) far. Clearance alone is not everything. Here<br>
it is marked that particularly with heavy vehicles, those<br>
Modification of the chassis (e.g.: other feathers/springs) one<br>
Alternative one represents.<br>
<br>
On the 14"-Serienfelgen the possibility 215/14 insists or<br>
to install 225/14. The selection of 14 " tires starting from the
size<br>
205/14 and more largely are generally limited.<br>
<br>
For 15"-Felgen (e.g. lack 7*15) the tire selection is
something<br>
more largely. Appraisal (e.g. Projektzwo) gives it for 225/70/15,<br>
235/70/15 and more broadly (starting from 215 mostly are<br>
Wheel arch widenings necessarily. This likewise with the TUEV<br>
clarify. Starting from 225 evtl the longer sliding door handle):
Further<br>
on 15"-Felgen are usable 215/75/15, 215/15, 225/75/15.<br>
<br>
On the 16"-Serienstahlfelge tyres 195/75/16, 195/16,<br>
205/16.<br>
<br>
There is surely still further wheel tires combinations<br>
possible. In each case is the free movement at the rear<br>
Diagonal steering wheel starting from a rolling circumference greater
2200 (dependently<br>
to consider from rims and section width). The front<br>
Wheel arches can do however already smaller 2150 too closely<br>
become (also dependent on the vehicle weight, remachining<br>
feasible, see in front).<br>
<br>
With the TUEV it can therefore to limitations up<br>
Tire makes and types come; evtl. Tachoanpassung<br>
necessarily. Already 14"-Syncros with 205/16 without everyone
became<br>
Modification at the body seen. The TUEV partly carries this<br>
even. This is to be enjoyed however with caution. If itself<br>
the examiner thus to an entry without limitation induce<br>
, is advisable it leaves, at the latest when assembling one<br>
larger tire the free movement to check again (those<br>
Rolling circumferences differ within a tire size up to?<br>
2.5% and more. With the radius, space requirement to the
bottleneck,<br>
does this mean approx.? 8 mm).<br>
<br>
Upon wheel / tire re-equipment is further on load-carrying capacity<br>
to note from rims and tires. Which brings a Syncro<br>
Camper a limitation of axle load and zul.<br>
Total weight because of super+large and super+broad tires,<br>
if not times more " course-load " the partner become may.<br>
Larger tires worsen also the brake delay.<br>
This can lead further to difficulties with the TUEV. That<br>
16"er has generally larger brakes.<br>
<br>
Interesting reading again and again tire tests offer and<br>
Lists in the usual jeep magazines.<br>
Further it gives in well sorted libraries or libraries<br>
Drawer books about tire and chassis technique.<br>
<br>
So far so well, much fun with all your new tires.<br>
< Ralf Burde ><br>
<br>
<br>
<br>
</font><font face="Times New Roman, Times" size=5><b>Connection
between<br>
Oh reduction Tachokalibrierung,<br>
Transmission identification letter and tyre</font></b><br>
<br>
</b><font face="Times New Roman, Times">The rolling circumference of the
tires can relatively simply<br>
are determined, if the identification letter of the<br>
Of final drive admits is. This is on the label<br>
in the service booklet; the same label is also in<br>
Floor space of the driver. An inserted trip odometer<br>
and a measuring section well-known length (approx. 50km) are<br>
necessarily, e.g. motorway with kilometer marking. Those<br>
Measuring accuracy grows with the length the measuring section and
is<br>
only by the accuracy of the marking limits. Those<br>
the following table supplies necessary vehicle specifications.<br>
With the help of the table it can be also checked whether after one<br>
Tire re-equipment of the odometers hastens after. With few<br>
Tracking is still no Tachoanpassung necessarily, there that<br>
Speedometer usually still another small<br>
additional voreilung has. The adjustment can if necessary<br>
by exchange of the Tachoritzels at the front axle transmission<br>
are implemented. However seems to me more externally<br>
Tachoadapter, e.g. of VDO Kienzle, the better way.<br>
This is installed easily between transmissions and Tachowelle.<br>
<br>
Axle<br>
Tacho<br>
Umfg<br>
HECTAR KB<br>
VA KB<br>
Tire<br>
6.17<br>
37:6x 8:21<br>
2349<br>
AVU AND<br>
ANB ANC<br>
6.50r16c<br>
<br>
37:6x 7:19<br>
2272<br>
<br>
AOM AOL<br>
195R16C<br>
205R16C<br>
5.83<br>
35:6x 8:19<br>
2456<br>
AVR<br>
AVS AHA<br>
AVM ALE<br>
AVF AKK<br>
AAM AHB<br>
7.00r16c<br>
<br>
35:6x 8:20<br>
2333<br>
<br>
<br>
205R16C<br>
215R16C<br>
6.50r16c<br>
<br>
35:6x 8:21<br>
2222<br>
<br>
<br>
195R16C<br>
<br>
35:6x 7:19<br>
2149<br>
<br>
ALN ALM<br>
205R14C<br>
5.43<br>
38:7x 9:20<br>
2443<br>
ALKENE AVL<br>
AVH<br>
AHF AVK<br>
AGZ AVJ<br>
6PA 6ZA<br>
6P<br>
AHU AHT<br>
ADM?<br>
7.00r16c<br>
<br>
38:7x 9:21<br>
2327<br>
<br>
<br>
205R16C<br>
215R16C<br>
6.50r16c<br>
<br>
38:7x 9:22<br>
2221<br>
<br>
<br>
195RC16C<br>
<br>
38:7x 8:20<br>
2171<br>
<br>
ADM Ñ<br>
ADN<br>
205R14C<br>
<br>
38:7x 8:21<br>
2068<br>
<br>
<br>
185R14C<br>
205/70r14<br>
4.86<br>
34:7x 8:18<br>
2159<br>
AAN AVN<br>
AAK AVV<br>
ADH ACU<br>
205R14C<br>
<br>
34:7x 8:19<br>
2045<br>
<br>
<br>
185R14C<br>
205/70r14<br>
4.57<br>
32:7x 8:18<br>
2032<br>
AKG AKE<br>
AKH AKF<br>
185R14C<br>
205/70r14<br>
Source: VAG spare parts catalogue © W. Nicklich<br>
In the table mean:<br>
<br>
Axle: Translation between axle and cardan shaft, e.g..<br>
37:6 = 6.17.<br>
Tacho: Translation between Kardan and Tachowelle in<br>
Front axle transmission, Za:Zb, whereby Za = 7, 8, 9 by that<br>
Transmission (identification letter) is determined, Zb = 18..., to 22
can<br>
by replacement of the Tachoritzels to be changed.<br>
Caution: the pinions e.g. for 7:19 and 8:19 are different.<br>
Umfg: Rolling circumference of the tires in mm with accurately
displaying<br>
Odometer, e.g. 37:6 x 7:19 m = 2272 mm. This<br>
simple connection applies, if the odometer<br>
1000 revolutions of the Tachowelle around 1 km advances<br>
(perceptibly at the number of 1000 on the Tacho). Is that<br>
Rolling circumference of the installed tires clearly more largely than
that here<br>
indicated value, will be necessary a Tachoanpassung.<br>
HECTAR KB: Identification letter of the final drive<br>
VA KB: Identification letter of the front axle transmission<br>
Tire: of the factory tyre designated for the respective<br>
Gear combination. Their rolling circumference is always smaller
than<br>
the value in the column Umfg.<br>
<br>
Transmissions with differential lock are underlined.<br>
Thus the meaning seems that with the front axle transmissions<br>
Identification letter up to an ambiguity with ADM completely<br>
clarified.<br>
<br>
The use of the table is described by an example:<br>
<br>
Wunschreifen: General Grabber ST 245/75 R 16,<br>
Getriebekennbuchstabe AND,<br>
Original tires 205 R 16,<br>
front differential lock,<br>
<br>
from it the identification letter results for the front axle<br>
AOM, which can be verified under the vehicle.<br>
Comparison with the tire table shows that the scope of the<br>
Desire tire (2351 mm) nevertheless clearly more largely than the desired
value<br>
(2272 mm) is; a Tachoanpassung is probably necessary<br>
its. With originalteilen would be however only by modifying<br>
Za of 7 to 8 possible, i.e. by complete dividing of the<br>
Transmission or by exchange of the front axle transmission through<br>
one with identification letter ANB (which here not recommended<br>
will is).<br>
For the determination of the rolling circumference must a measurement
with that<br>
Desire tire to be executed: Measuring section: 60 km,<br>
Display: 57,9 km. The rolling circumference amounts to thereby 37:6 x
7:19<br>
x 60:57.9 m = 2354 mm. If itself the front<br>
Transmission identification letter not to determine left, can
alternatively still<br>
the case ANB to be checked: 2349 x 60:57.9 mm = 2434 mm.<br>
A comparison with the tire table (2351 mm) shows that these<br>
Case to exclude is.<br>
The in such a way determined rolling circumference contains naturally
also that<br>
Slip, is always somewhat smaller therefore than the correct<br>
Rolling circumference. To what extent the slip the result
beeeinflusst,<br>
it depends on the fact how much driving powers the Viscokupplung on
those<br>
Front wheels transfers. Completely to switch off one can do this<br>
only by slow driving or developing of the cardan shaft.<br>
< Wolfgang Nicklich ><br>
<br>
<br>
-s. 3 status: July 1997 © 1997 Ig syncro 16 "<br>
<br>
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