Maye OT: spring compressor

You might get better advice on:

uk.rec.cars.maintenance

Another Dave

I'm a lurker in there and I'm sure they will be very blind sighted and all jump on the bandwagon and say buy the correct tool which is probly good advice but not the answer I'm after. I thought I may get a few creative thought heres :)

On some vehicles you can loosen the nuts/bolts passing through the ends of the damper, re-attach the road wheel, drop the vehicle to the ground compressing the spring, take out bolts and jack up again.

Another way is to apply another jack directly on the axle (though you may make the main jack unstable doing this).

I would however be surprised if there wasn't much residual force in the springs in the jacked up position - and if it suddenly goes twang, and your hand is inside the spring, your fingers may be mush.

Munki,

Have a look at this link (scroll down to about half way) and the information

Very interesting reply which has given me some ideas :) thanks kindly.

Hmm cash I like it... a diy spring compressor, definitely worth a go. Thanks for the link I read it. I did exactly the same thing today and failed miserably. I was even comtemplating using the scossor jack to wedge init and try and turn it to shorten tohe sprig till the obvious danger occured :)

I really hate buying tools I know I'll just never use again.

Thanks for the post I'll have a think about a diy spring compressor.

After 20 years of wasted time, bodging and scraped knuckles, I've reached the opposite view. If there's a proper tool for the job, buy it. Also, get a dry, secure workshop, shed or garage with mains power. You'll enjoy the work more, you'll use the tools more, you'll be popular with your mates, you'll live to a ripe old age, and you'll have somewhere to hide when the MiL visits.

FWD road car...

- rear end coilover if linear are typically 120-180lb/in

- rear end coilover if progressive can rise significantly higher

Progressive easily spotted by a change in wire-counter per linear inch, since taper-wire is rather unlikely this side of unobtainium.

Springs are preloaded...

- firstly so they don't fly out when you go airborne

- secondly so the spring remains correctly seated

- each inch of preload is thus 120-180lb

Now, coilover means just that - coil over damper. Many cars put the springs between wishbone & subframe, so permitting a higher wishbone count or better geometry. In this instance the spring rate can be far higher & so preload.

Problem is not just how you get it OUT - but get it back IN. Front coilovers can have 450lb+, rears 350lb+ preload.

Hence the idea of a spring compressor so it CAN be removed and CAN be refitted. Go ask in the VW or Audi newsgroup.

If you are anywhere near Southampton, you could borrow mine.

Bob

Has the potential for the mother of all pingfuckits.

Only a guide, but it's usually struts you have to be very careful with. They are always under fairly high compression when you dismantle them. Rear non strut types can often have the axle etc lowered enough to remove any compression on the spring. If fitting a new spring it should be obvious if this is the case by comparing lengths. But spring compressors are cheap and don't take up much storage room.

What a wonderful word :-)

Do you know anyone with parcel strapping equipment? A few lengths of strapping put around the coils while they are under compression will hold them in place. Just make sure the seals are well made.

Colin Bignell

Tell that to Massa.

He might get a laugh..out of it.

Jesus, you haven't got a single mate who can give you a hand for five minutes? Jack the car up on the chassis and put on axle stands, leave the wheels on and handbrake on, remove lower shock absorber bolt, get a mate to stand on the tyre or pull down on it and the spring just pops out.

Get out more and meet some new friends!

I liked it too :)

LOL... they're not the get you hands dirty type sadly.

On that thought, would a rachet strap not work? e.g.