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In this section we advise you, and provide assistance to others on various industry topics.

Caravan tyres

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06 May 2015 @ 07:41:35 am
RD
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If you do not come right at ALCO with the rims, check with the guys at Tiger Wheel and Tyre, they were very helpful.
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07 May 2015 @ 19:29:37 pm
Pieter.B
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Went to ALKO today and it turns out I have a 4/114 pcd. They only stock a 14" in 4/100pcd. Further enqueries at 2 tyreshops leave me with a choice of 1 type of magwheel at approx R1000 a piece.

Which brings me to another question: did you replace your spare with a 14" rim or are you keeping a 13" as spare? I'm looking at replacing the 2 wheels on the van and keeping the spare in a 13". This will then be used as an emergency measure until the first possible place that can repair thr original.
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08 May 2015 @ 08:05:14 am
RD
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I am still using the 13" for now as a spare. I will going to change to a 14" spare wheel before my next long trip.
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26 May 2015 @ 18:55:33 pm
Pieter.B
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I have ordered my 14" steel wheels from TWT. This is the only rim I could find in a 4 bolt pattern with a 15mm offset. A 0 offset would have been better but this is the closest.
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27 May 2015 @ 07:14:51 am
Franki T
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Just make sure that the spigot size of the rim matches the center hub size. You dont want the nuts to bear all the weight of the van, the rim must fit snugly over the center hub of the axle.
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27 May 2015 @ 07:14:53 am
Franki T
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Just make sure that the spigot size of the rim matches the center hub size. You dont want the nuts to bear all the weight of the van, the rim must fit snugly over the center hub of the axle.
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27 May 2015 @ 18:02:16 pm
Pieter.B
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I'll definetly check that. I picked up the rims today and will do a test fit tomorrow (rim only). I was also told by a workshop manager to make sure I tighten the wheelnuts to 120Nm. This is more critical on the 4 bolt rims.
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28 May 2015 @ 10:21:50 am
RD
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Pieter, I measured the axle and with that measurement obtained the correct size spigot rings from TWT for the mags.
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28 May 2015 @ 18:26:47 pm
Pieter.B
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I fitted the new steelies today. Now the problem is that both sets of  rims has a larger hole in the centre than the one on the hub?????? There is also no spigot ring available for the steelies. What do I do now? just check the wheelnuts every 200km's?

 

What was the offset on your mags, RD? According to the post you had little clearance at the back of the wheel with a 0 offset. I'm guessing your mags has a 40 offset?

Note the gap between the wheel and hub

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29 May 2015 @ 07:14:51 am
Franki T
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....
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29 May 2015 @ 09:15:03 am
RD
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Pieter, the mags name is Dash and is a 4/100 with an offset of 38. Bought the mags from TWT on Ontdekkers Road near Westgate. You will find a very helpful person there.
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29 May 2015 @ 09:28:52 am
Franki T
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Does anyone know how this will effect your insurance, eg modifications etc.
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29 May 2015 @ 13:12:56 pm
RD
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Franki, I would say as long as you exceed the requirements of the manufacturer, you should be OK. My caravans original tyre from factory was 185R13. As these tyres are no longer available and the only available tyre most of the time is a 165R13C, the tyres I have installed exceed the requirements (185R14C). From a safety point of view, I am satisfied with this modification and I have peace of mind using a local tyre instead of those other foreign brands.
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01 Jun 2015 @ 16:14:38 pm
Pieter.B
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Had a chat with the workshop manager at Sunseeker Alberton. Most vans have that gap between the rim and the centre from the drum/hub.  Meaning the wheel only gets held to the drum by the nuts. He said the correct torque for the wheelnuts should be around 105 to 108Nm

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01 Jun 2015 @ 16:37:56 pm
Franki T
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Thanks Pieter, my wheel came of the axle in Dec. I think it was the guys that worked on my van as my dad's wheel almost came off about three weeks ago. I thought it was because of the spigot gap, but now I think it was the "guy" not tightening the nuts to the correct torque
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01 Jun 2015 @ 17:22:29 pm
Anonymous

I normally torque my wheel nuts 90nm, 

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02 Jun 2015 @ 14:14:18 pm
Nico
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90 Nm should be far more acceptable than 120 or whatever was mentioned on other posts above. The problem is that with the torque exceeding 90 Nm, a process called "stretching" will happen which has 2 problems:

1. The nut will be stretched by the second or third "fitting" so much that it may be weakened and eventually break. In cases where stretching is used as part of the torque (i.e. on engine cylinder heads etc.) such nuts are used only once and thereafter discarded.

2. Stretching will also influence the pitch of the thread on the wheel bolt / nut (depending which is used), which will affect the pitch on the wheelbolt or drum and may lead to cross-threading when used over and over again.

I also frown upon the idea of "checking the wheel nuts before every run". Once a wheelnut/bolt is properly thightened, (to the correct torque) it should not be re-checked. Re-checking has the problem that EVERY TIME this is done, the nut is tightened ever so more which will eventually lead to the 2 problems mentioned above.

We have done many an experiment of the above point, and NEVER was a nut/bolt left with the original torque .....

As an aside - with the issue listed above where the centre of the wheel rim is bigger than the centre piece of the drum: I for one will certainly not be happy with that arrangement. It has been correctly said before that in such a case the wheel is attached to the drum by way of the bolts only and that can only lead to problems. The spigot also ensures to a large degree that the rim is properly aligned with the drum (or hub in case of disc brakes). I will definately recommend that, where proper sized spigots are not available, that such spigots be turned on a lathe.

My 2c only ....

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02 Jun 2015 @ 16:52:09 pm
Karoo Klong
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Nico,ek stem,reeds deur die skool.
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03 Jun 2015 @ 10:25:51 am
Franki T
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Dankie Nico, sal seker maak dat die spigot en rim pas as ek my nuwe as koop.
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04 Jun 2015 @ 13:47:34 pm
RD
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My 13" white rims also had a big clearance between rim bore and axle. I just made sure that the wheels were never loose, especially the L/H side. I will try to find out more. The mags that I have installed have the correct spigot rings installed.
This is what I found on Google. Hope it helps.

Now some aswers to frequently asked questions:
Wheels need to be alligned to match their center to the turning center of the axle. Otherwise the wheel ist running excentric when turning.
There are cars (Mini Cooper) without center location. They locate their wheels just by the bolts.
Modern cars have a machined wheel flange providing a center location for the wheel.
The tolerance for the center location is 0,06 to 0,1mm. Giving the axle is for example 57,0 mm the wheel shall be 57,06 to 57,1mm.
The spigot ring is just an aid helping to fix the wheel concentric to the axle. Once the tightened bolts are securing the wheel into place the spigot ring is a useless passenger inside the wheel.
The spigot ring must be flush with the naive face of the wheel. If you have the problem as shown in the picture the you cannot get an acceptable runout. Even worse your lugnuts may come loose!
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05 Jun 2015 @ 20:40:34 pm
Pieter.B
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Thanks RD. I had a suspicion that the spigot ring had little effect on the fastening of the rim to the hub. The spigot would have to go on real tight to be "effective". That would mean you'll have to hammer the rim of the hub when changing the tyre.

 

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08 Jun 2015 @ 08:10:19 am
RD
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Pieter, this is a difficult subject with many different opinions. I really hope that you find a solution that will work for you.
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08 Jun 2015 @ 09:49:18 am
pwven
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Hierdie is n baie interesante gesprek wat baie inligting bevat.

Wat ook baie vergeet word is om te kyk na die "Speed en Load rating" van n band. Dit is geskryf op die kant van die band en om die tabelle te kry google net Tyre Load of Speed rating. 

Geniet die lewe so lank as jy kan
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08 Jun 2015 @ 10:23:42 am
RD
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pwven,you are correct. SAFETY FIRST!!! When I was looking at the 14" tyres I came upon something very interesting. When checking the load ratings on the various commercial tyres (185 14C) I could not believe the difference in the load ratings as well as the ply ratings. Be aware when buying a commercial, do not assume that because it is a commercial tyre that the ply and load rating is suitable for your use on the caravan. Remember, these are after all "Bakkie" tyres! Check the actual ply and load rating on the tyre first that will be suitable for your caravan. Ask for advice from the tyre fitment centre if you are not sure, I did!! That is how we learn and stay safe!
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08 Jun 2015 @ 10:32:45 am
Franki T
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Load Index Pounds Kilograms Load Index Pounds Kilograms
71 761 345 91 1356 615
72 783 355 92 1389 630
73 805 365 93 1433 650
74 827 375 94 1477 670
75 853 387 95 1521 690
76 882 400 96 1565 710
77 908 412 97 1609 730
78 937 425 98 1653 750
79 963 437 99 1709 775
80 992 450 100 1764 800
81 1019 462 101 1819 825
82 1047 475 102 1874 850
83 1074 487 103 1929 875
84 1102 500 104 1984 900
85 1135 515 105 2039 925
86 1168 530 106 2094 950
87 1201 545 107 2149 975
88 1235 560 108 2205 1000
89 1279 580 109 2271 1030
90 1323 600 110 2337 1060

Speed Symbol
J K L M N P Q R S T U
km/h 100 110 120 130 140 150 160 170 180 190 200
H V W Y VR
210 240 270 300 >210


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08 Jun 2015 @ 10:32:49 am
Franki T
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Load Index Pounds Kilograms Load Index Pounds Kilograms
71 761 345 91 1356 615
72 783 355 92 1389 630
73 805 365 93 1433 650
74 827 375 94 1477 670
75 853 387 95 1521 690
76 882 400 96 1565 710
77 908 412 97 1609 730
78 937 425 98 1653 750
79 963 437 99 1709 775
80 992 450 100 1764 800
81 1019 462 101 1819 825
82 1047 475 102 1874 850
83 1074 487 103 1929 875
84 1102 500 104 1984 900
85 1135 515 105 2039 925
86 1168 530 106 2094 950
87 1201 545 107 2149 975
88 1235 560 108 2205 1000
89 1279 580 109 2271 1030
90 1323 600 110 2337 1060

Speed Symbol
J K L M N P Q R S T U
km/h 100 110 120 130 140 150 160 170 180 190 200
H V W Y VR
210 240 270 300 >210


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08 Jun 2015 @ 10:33:31 am
RD
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Forgot to mention. When buying any new tyre, check with the tyre fitment centre what date the tyre was manufactured. No good buying a tyre that was made last year. One year less of tyre life!!!!
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09 Jun 2015 @ 19:26:53 pm
Pieter.B
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I had 2 tyres fitted at Supa Quick today. Fitted the wheels to the van and found I had 5 fingers space at the top of the tyre. I couldn't do a precise measurement of the ground clearance, but guess I gained around 30-40mm.

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10 Jun 2015 @ 10:08:14 am
RD
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Pieter, glad all has worked out well for you. Did you have to raise the towball?
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10 Jun 2015 @ 16:14:29 pm
Pieter.B
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Haven't checked yet as the van is standing at a secured parking lot.. Currently I'm using a 8 hole dropplate as my bakkie has been raised. Maybe I'll get a bit of nosedown on my van.

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10 Jun 2015 @ 19:01:31 pm
Chris L
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RD, when is the BT50 due??tongue-out

AMAZING
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11 Jun 2015 @ 14:07:58 pm
Chris L
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RD, sorry misunderstanding.

AMAZING
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04 Sep 2015 @ 16:16:45 pm
W J
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I did not see any body mension the wheelalignment on the caravan after putting spacers to lift the van ,when the new tyres run down on one side people are going to ask what nowlaughing Vra maar netyell

How great is our GOD
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05 Oct 2015 @ 14:30:40 pm
Franki T
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8 Ply commercial tyre option, MAXTREK SU830, 93S rating (650kg, 180km/h) avaialble at Supa Quick (Alrode-Alberton is where I getting mine). I upgraded my axle (ALKO) and fitted 14inch but looks like an offroad van, too high of the ground resulting in me to stick with the 13" option
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05 Oct 2015 @ 14:30:57 pm
Franki T
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8 Ply commercial tyre option, MAXTREK SU830, 93S rating (650kg, 180km/h) avaialble at Supa Quick (Alrode-Alberton is where I getting mine). I upgraded my axle (ALKO) and fitted 14inch but looks like an offroad van, too high of the ground resulting in me to stick with the 13" option
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05 Oct 2015 @ 18:17:00 pm
Pieter.B
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Do you have any photo's? How much more is the van lifted by?

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19 Nov 2015 @ 18:33:02 pm
Theuns
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Nog 'n vragie aan die slim manne: wat is die regte grootte buiteband wat ek op 'n 1991 Jurgens Fleetlinde moet opsit - 175x13 of 165x13? Tans het dit 175x13 motorbande op en ek moet bande opsit met groter dravermo.
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19 Nov 2015 @ 19:22:39 pm
Anonymous

Theuns, ek sou Komersiele bande aanbeveel van 175x13 C, maar kom ons kyk wat sê die bande kenners.

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20 Nov 2015 @ 06:43:37 am
Leon
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Theuns, ek sou Komersiele bande aanbeveel van 175x13 C, maar kom ons kyk wat sê die bande kenners.

Ditto. Sal ook die "C" ding doen.

Sonder Jesus is ek niks! ! ! !
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20 Nov 2015 @ 06:46:25 am
Leon
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Die 175  of 165 is mos maar die breedte van die band. Ek glo dat die brieër een 'n beter dra vermoë kan gee en siende dat hy reeds binne die "Wheel arch" pas sal ek by daai breedte hou.

Sonder Jesus is ek niks! ! ! !
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20 Nov 2015 @ 07:03:46 am
OOM JEEP
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Wonder maar net
Hoekom NIE gewone kar bande.
Is die wn te swaar
Hoekom wheelbearings gereeld oorpak

My ou Ford was n swaar kar. Het 205 x 14 grand prix tyres opgehad. Wheel bearings gepak toe ek hom gekry het.

Seker, hierdie is ma n klip innie bos
I love camping all year round
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20 Nov 2015 @ 07:27:06 am
Somer Kamper
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Die meeste woonwaens het 'n enkel as. Sê maar die wa se bvm is 1400 kg, dan moet elke band 700 kg kan dra. As die sleepkar gelaai 1800 kg weeg. moet elke band 450 kg kan hanteer. Dit is waarom kommersiële bande op woonwaens gebruik word.

Wanneer sal paploop bande ("runflat tyres") beskikbaar raak vir woonwaens? Die goed se wande is sterker en dit behoort nogal sin te maak.

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21 Jan 2016 @ 16:56:08 pm
bassbuster
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Unless you are changing the rim diameter for want of safety benefits, I gather it is best to try to replace with what the manufactures recommend or what originally came with the van.

 

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21 Jan 2016 @ 17:01:13 pm
bassbuster
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Unless you are changing the rim diameter for want of safety benefits, I gather it is best to try to replace with what the manufactures recommend or what originally came with the van.

 

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17 Oct 2016 @ 13:07:20 pm
BobMabena
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This is my new favourite thread...  Looking to raise the height of my Fleetline XL just a bit, and I think the spacer/14" upgrade will do the job.

Thanks RD

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17 Oct 2016 @ 14:15:51 pm
Anonymous

Greg, jou will have to check whether or not you enough clearance in the wheel arch, and also, if a spacer will fit onto the chassis.

Not all chassis can take the spacers.

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17 Oct 2016 @ 14:19:40 pm
BobMabena
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Greg, jou will have to check whether or not you enough clearance in the wheel arch, and also, if a spacer will fit onto the chassis.

Not all chassis can take the spacers.

That's the plan... 50mm spacer first... then I'll see if I need the 14" wheels.

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20 Nov 2016 @ 20:44:55 pm
Danie-SLK
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Greg I think if you start looking for spacers you will find only 40mm spacers are sold by the caravan workshops. I wanted to lift only 30mm and nobody could supply. I still feel the standard mild steel spacers are way over priced vs the cost of the steel and 2 holes or better 2 slots in the spacers.

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21 Nov 2016 @ 07:23:41 am
BobMabena
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Thanks Danie

Had 20mm spacers fitted when the van was in for a service. About R500 all in, so no too bad.

Wheels still look tiny, but the extra height has made a bit of a difference... Going to keep it like this for a while and see how it goes.

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