Confirmation of Tyre Pressure for Boat Trailer

[dnej]

As oldboot says, if you go too high, you get way too much bounce in some cases. I would recommend a cheap option to check your tyres at home ,cold, is to use one of those 12 volt pumps, (if you cant go to an elcheepo 240 volt one )
They are a bit slow, but work well.
Also a handy back up on the road.
David

[Splash]

thanks dnej

[BilgeBoy]

My father in law has a 34 footer that sits on a custom made I beam trailer with tandem axles. I remember the first time I ever saw it....I said "Hey all ya tyres are flat". To that he just laughed and said..."They cant be, there's 85 psi in em".

He tells me its like a 303 going off when one blows I think they are 9 ply tyres he runs.

That is one heavy sucker of a boat! Oh...he tells me he will put in a tripple axle next trailer build!


Regards

BilgeBoy

[marty+jojo]

Crap, i only run 30PSI in mine... it seems ok, no probs after 6 years. I have a 4.2mtr tinny with full floors, battery, electric motor, 40hp outboard. Should i run more PSI???
Marty.

[dnej]

Marty,
The whole issue is a relative one.For example, my boat, trailer,motor ,plus gear come up to around 1500kg.

Its correctly balanced on the ball,weight wise,but if I run my tyres at 65psi,which is recmmended,the bloody thing bounces.
I run mine at 50psi, and that is great for me.Little to no bounce.
Check your tyres at home. when cold, then drive down the road to a garage, and recheck them, and see if they have increased very much in pressure.
That will give you an idea.
David

[Moonlighter]

Hi again Splash

Its a very good question you've asked and one that I've asked on several occasions too. Some tyre dealers have no idea about this stuff, others are very good.

I'm about to put some new Yokohama LT 13 inch tyres on my boat trailer, and so I e-mailed Yokohama and asked them what pressure I should run for local trips and also on long runs on the highway.

They needed to know the weight all up of the trailer and the number of axcels.

They recommended for my boat, 50psi around town and 55 psi on long runs or when heavily loaded. The max pressure rated for the tyres is 65psi and my boat weighs about 85% of the tyres max load carrying capacity.

So the advice that others have offered re assessing the weight of your boat/vs tyre load carrying capacity is pretty close.

Cheers

ML