Tyres and towing question....

Jul 05, 2003 2 Replies
G

Just had new tyres fitted to the rear of our 1989 RR (235/70 16 jobs) Previous ones were Goodyear GT4s and the new ones are BF Goodrich Macadams (they were supposed to be Michelin Synchros but the tyre place fecked up and got in 265/70s which, when you really, really, urgently need 235/70s is no good...)



Anyway both makes of tyre are a road pattern and were/are inflated to 35psi. Towing today for the first time on the new ones I find that the horse trailer is snaking a little and the whole outfit feels a bit less stable than before.



Any ideas?



My thoughts are to swap the front (Michelins) with the rear (BFGoodrich) to see if that helps but I think I read somewhere that this is a no-no with the RR and Disco??



Graeme


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A

On or around Sat, 5 Jul 2003 19:12:34 +0100, "Graeme" enlightened us thusly:

don't see why. You could also look at increasing the rear tyre pressures a bit when towing, and also2 look at the noseweight of the trailer.

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On or around Sun, 6 Jul 2003 21:06:04 +0100, "Graeme" enlightened us thusly:

I bet the tyres are OK for it. It depends really on your noseweight, if you're transferring noticeable weight onto the vehicle, you'd want more pressure. Run the disco at about 36 all round, on 205 section tyres, for normal running about. LR's recommended front pressures always look too soft to me.

but I had some problems towing the big trailer with a bit over a ton on it (getting on for 2½ tons gross), then next time I upped the rear tyre pressures and that made it better. Running empty, it tows perfectly, it was only when it was heavy that it started pushing the vehicle around.

In an ideal world, you'd have an infintely-adjustable hitch and a method of showing the noseweight, then you could tweak it to suit the trailer load etc.

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