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Hydroelastic help, Should I pump the old girl up?

Posted: Mon Dec 08, 2014 12:36 pm
by haynes
On hydro suspension, she's sat about an inch off the tyre at the front and around 3 to 4 inches at the back. (1965 Morris 850)

Problem is one side is about 1/2 inch lower, making it just a little too low on the drivers side, front.

I'm a bit worried that if I get the hydro pumped up that it'll start leaking and i'm in a nightmare scenario of having to get it all renewed. Is this a legitimate worry?

My next concern is that either the back or the front will end up sitting too high, rather than being poised right with the back 2 or 3 inches higher (as she is now). Does it do funny things when its pumped up or does it stay in proportion?

Or is the height I have is normal and I should just leave it? Or isnt it the hydor thats the problem, may be knuckle wear etc?

Re: Hydroelastic help, Should I pump the old girl up?

Posted: Mon Dec 08, 2014 12:49 pm
by bmcman.ie
yup, i would say its either knuckle joints, or dodgy top arms (partially seized/ bushes) or, subframe! :o

Re: Hydroelastic help, Should I pump the old girl up?

Posted: Mon Dec 08, 2014 7:27 pm
by Dr S
It's at 250 odd psi already. A spadge more wont change much, agree with the other posted it'll be a knuckle or upper arm issue. They do tend to sit a bit nose heavy after 45yrs mines going back together with spacer knuckles on the front to try and balance up

Re: Hydroelastic help, Should I pump the old girl up?

Posted: Mon Dec 08, 2014 9:03 pm
by java gt
When you say spacer knuckles at the front,what do you mean Dr S as my MKII is nose heavy even with washers on the knuckles and I would like to balance it out so it sits more level.

Re: Hydroelastic help, Should I pump the old girl up?

Posted: Mon Dec 08, 2014 10:18 pm
by Dr S
The spacer knuckles were fitted by the factory to 12 inch wheeled cars from about 84. They have a built in 5mm or so spacer. Not a hydro part but looks useful to me!

Re: Hydroelastic help, Should I pump the old girl up?

Posted: Tue Dec 09, 2014 8:40 am
by haynes
I dont think the rake is too bad, its just that front o/s corner is about 1/4 to 1/2 inch too low. Will I be able to pump it up a little to resolve?

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Re: Hydroelastic help, Should I pump the old girl up?

Posted: Tue Dec 09, 2014 11:12 pm
by Dr S
Yep, I'd give it a go. You can always let it down again.

Hydroelastic help Should I pump the old girl up

Posted: Fri Dec 12, 2014 2:31 am
by R19Cads
yea, was looking at scrapping it to be honest, but got the pump re-conned with warranty for a decent price, sobit the bullet and hoped it would get her going again