VanGo Caravan Services check out our comfortable cushions check out the new remote control Jockey Wheel Lithium Batteries Learn more about Sat Phone Sales How to help support the Grey Nomad Times
Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: TPMS


Veteran Member

Status: Offline
Posts: 31
Date:
TPMS


Hi All

I recently purchased a Safety Dave TPMS system for the tug and the van. All worked well until one of the batteries in the caravan wheel monitor died. Easy to change . BUT while I was removing the unit from the wheel I noticed a happy face on the rim around the valve area. On closer inspection I found that the TPMS had been flapping around and hitting the rim. When the wheel is stationary the unit is at least 1 cm from the rim. This concerned me because the rubber portion of the valve stem has started to split/crack  in several places close to the rim. For safety and my peace of mind I have had all the valve stems replaced with new ones. Not a big cost at $10 per wheel.

I had been driving along a unsealed road which had small corrugations before hand. This is what probably caused the flapping, At least I hope so. I will monitor this more closely from now on.

So has any one else had this sort of problem with the valve flapping around when a external TPMS has been fitted.

Also has anyone had the tyre deflate because of this cracking of the valve stem.

If so what can be done to remedy this problem of the valve flapping because of the extra weight of the TPMS unit .

 

cheers

Kiwimagic.



Attachments
__________________


Senior Member

Status: Offline
Posts: 229
Date:

G'day Kiwi, on lcool forum someone fitted some 12/13mm soft poly irrigation pipe as a sleeve, prior to fitting sender unit, they said it was a good fix. cheers Craig

__________________


Member

Status: Offline
Posts: 15
Date:

Hi Kiwimagic,

I'm new at attaching pictures. My tyre dealer fitted new valve stems which failed due to the flapping, so we went back to the originals but as my M/home has duels, he fitted flexible extensions to help me check tyre pressures etc. He then found clamps as shown in the picture this page and also in the attachments.

Another method is to use cable ties (the tougher the better), to brace the cap from flapping.

Gets awkward on corrugated roads, so bad one of my units failed but after removing and reinstalling, came back to life.

I wouldn't be without TPMS. Takes the worry out of flat tyres and or blowouts. We had one of those (blowout).

Keep safe.IMG_2654.JPG



Attachments
__________________


Senior Member

Status: Offline
Posts: 486
Date:

I currently do not have any TPM system on my vehicles but if I were to get a system where the sensors fitted to the end of the valve stems I would seriously consider metal valve stems.

Here are some for sale and metal stems are available in different sizes for car and truck (motorhome) rims.

http://www.ebay.com/bhp/metal-valve-stem

If you want to see them in the flesh before buying then Speed Shops and Custom wheel and tyre shops should be able to help you and they can fit them as well

No point having a TPMS if the valve can break off.....

Apology if anyone tried to open my first link. When I tested it, it was dodgy.... Now edited to eBay suppliers.






-- Edited by Dickodownunder on Saturday 17th of February 2018 11:54:30 AM

__________________

Geoff

 

Travel Safely



Senior Member

Status: Offline
Posts: 229
Date:

I have a TPMS system on my caravan and it works - well it displays something, exactly what I am not sure. It at least gives me a better picture of what is happening than simply driving along and waiting for a loud rumble to indicate that I have a flat tyre...When I disconnect the caravan and go exploring, the monitor screams at me because it is missing the caravan tyres, so I turned it off. WRONG! On one of my explorations, the corrugations were so bad that the sensor on the rear tyre of my 4WD unscrewed itself, thereby letting the air out of the tyre. I found it before any damage was done, but I had to change the tyre on a very difficult position, and because of my respiratory condition and the fact the tyres weigh heaps, it was over 2 hrs later that we were back on the road again. As I was putting the dead tyre onto the spare wheel position, my wife asked if the sensor would interfere with the spare wheel cover. I said "no", but on checking, I noted that the sensor was loose. We had looked at the dead tyre looking for cuts, nails etc, but could find nothing. Got back into town, and went to the local garage and inflated the dead tyre to 50 psi. Next morning it was still 50, so I refitted it to the car and all has been good since. Moral of the story - check that the tyre pressure sensors are screwed on tight, and check them regularly.



-- Edited by erad on Monday 19th of February 2018 04:17:21 PM

__________________


Senior Member

Status: Offline
Posts: 486
Date:

As with most items you get what you pay for.
The TPMS system with the sensors inside the rim/tyre assembly are generally a bit more expensive but are not prone to damage like the system with the sensors fitted to the valve stems.
The final decision is personal.

__________________

Geoff

 

Travel Safely

KJB


Senior Member

Status: Offline
Posts: 104
Date:

Maybe fit one  of these to each wheel -  Porsche used them for valve stem control at high speed . They were not expensive and just stuck on .Porsche Valve Stem Support 2.png



Attachments
__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
Purchase Grey Nomad bumper stickers Read our daily column, the Nomad News The Grey Nomad's Guidebook