PV - 1962, 544 hard suspension - Page 4

adarvasi · Apr 25th, 2021, 23:50

Quote:

Originally Posted by Derek UK

What tyres are you using and what pressures are you running them at?

The PV uses a rather unusual axle mount with a couple of bars and rubber bushes mounted to the diff. Other owners might like to make comments as I don't know anything about this arrangement. I'm wondering if this is isn't properly set up and is making the back end very rigid.

Derek I am using 165/80/15 made in China, bought in the USA, could not fi d the right size for immediate delivery anywhere. Inflated to 28psi and 26 psiup front.

In the mid 60s Michelin had low pressure tires that were really great, don’t believe that they are available now.

Army · Apr 26th, 2021, 08:30

If you have a van / light commercial load rating on the tyres then you will have stiffer side walls.

Have you tried lower pressures? I can't remember what the pressures are meant to be for my PV - I can't find my workshop manual either but those values would be for a rather flexible car-like tyre...

(I'm not going to mention the poly bushes again!)

arcturus · Apr 26th, 2021, 09:25

21 psi front and 24 psi rear recommended in handbook.

Army · Apr 26th, 2021, 10:51

Ohhh - pull up a sand bag - I'll tell you a story about wrong tyre pressures:-

I once hired a car in Arizona. The hire company "mechanic" had inflated the tyres to the pressure written on the sidewall of the tyres...

...I'd heard about American land yachts wallowing in corners but it seemed a bit strange to have the same effect on the straights!

arcturus · Apr 26th, 2021, 11:36

He should have inflated then to the car manufacturers spec' which would have taken the weight of the car into consideration.

adarvasi · Apr 26th, 2021, 12:07

Will try the lower pressure and report, thank you

Derek UK · Apr 26th, 2021, 12:16

Note that the tyre pressures shown there in the handbook, 6v car so pre '61, would be for cross plies and not the radials you have. Radials might have been standard on '65 PV's? 26 front and 28 back comes up as suggestion on Brickboard when Googled.

Army · Apr 26th, 2021, 12:53

...and I'd better put that sand bag back in the garage again...

arcturus · Apr 26th, 2021, 13:36

More info.
you have probably taken this into account but If you check your pressures when the tires are cold and then go out into the hot Mexican sun, your tire pressures will increase considerably.Best to check them hot.

adarvasi · Apr 26th, 2021, 20:02

I think that I have found (hopefully) the problem, when I ordered the springs, I ordered the lowering ones believing they were the standard, and it seems that they are harder to avoid bottoming out.
As for tire pressure I always check it cold, because otherwise you never know where you will end up.
Thank you Arcturus

Apr 26th, 2021, 08:30	#32
Army marches on his stomach Last Online: Feb 11th, 2022 03:15 Join Date: Jan 2018 Location: Somewhere in the Netherlands	If you have a van / light commercial load rating on the tyres then you will have stiffer side walls. Have you tried lower pressures? I can't remember what the pressures are meant to be for my PV - I can't find my workshop manual either but those values would be for a rather flexible car-like tyre... (I'm not going to mention the poly bushes again!) __________________ 1961 Volvo PV544 the quick and easy in between project(!) 1981 Mercedes 300D <=> 230 diesel to petrol conversion project 1965 Series 2a Station Wagon mega build 1992 Mercedes 190E The car that works!

Apr 26th, 2021, 09:25	#33
arcturus arcturus Last Online: Today 08:11 Join Date: Mar 2006 Location: Sagres Portugal	21 psi front and 24 psi rear recommended in handbook. __________________ life's too short to drink bad wine

Apr 26th, 2021, 10:51	#34
Army marches on his stomach Last Online: Feb 11th, 2022 03:15 Join Date: Jan 2018 Location: Somewhere in the Netherlands	Ohhh - pull up a sand bag - I'll tell you a story about wrong tyre pressures:- I once hired a car in Arizona. The hire company "mechanic" had inflated the tyres to the pressure written on the sidewall of the tyres... ...I'd heard about American land yachts wallowing in corners but it seemed a bit strange to have the same effect on the straights! __________________ 1961 Volvo PV544 the quick and easy in between project(!) 1981 Mercedes 300D <=> 230 diesel to petrol conversion project 1965 Series 2a Station Wagon mega build 1992 Mercedes 190E The car that works!

Apr 26th, 2021, 12:53	#38
Army marches on his stomach Last Online: Feb 11th, 2022 03:15 Join Date: Jan 2018 Location: Somewhere in the Netherlands	...and I'd better put that sand bag back in the garage again... __________________ 1961 Volvo PV544 the quick and easy in between project(!) 1981 Mercedes 300D <=> 230 diesel to petrol conversion project 1965 Series 2a Station Wagon mega build 1992 Mercedes 190E The car that works!

Apr 26th, 2021, 12:07	#36
adarvasi Member Last Online: Mar 1st, 2022 00:17 Join Date: Sep 2018 Location: Mexico City	Will try the lower pressure and report, thank you

Apr 26th, 2021, 12:16	#37
Derek UK VOC Member Last Online: Today 15:13 Join Date: Jul 2006 Location: Chatham	Note that the tyre pressures shown there in the handbook, 6v car so pre '61, would be for cross plies and not the radials you have. Radials might have been standard on '65 PV's? 26 front and 28 back comes up as suggestion on Brickboard when Googled.

Apr 26th, 2021, 20:02	#40
adarvasi Member Last Online: Mar 1st, 2022 00:17 Join Date: Sep 2018 Location: Mexico City	I think that I have found (hopefully) the problem, when I ordered the springs, I ordered the lowering ones believing they were the standard, and it seems that they are harder to avoid bottoming out. As for tire pressure I always check it cold, because otherwise you never know where you will end up. Thank you Arcturus

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