damper rebound

[mzafeer76]

Right quick question..i bought some front dampers for the 850 t5 of a guy called shem racing off ebay..the dampers came but when you compress them they dont rebound up.the guy is argueing with me to say they are not suppose to rebound..i swear tried to explain to the dude but he wont have it..all dampers are suppose to have rebound..aint they??

[M-R-P]

Nope - I fitted new shocks to a P1 V70 and they didn't rebound. P2 shocks however, take about 50Kg to compress.

Shem is a well known chap over on T5D5 and I wouldn't think he'd rip you off. T5D5 make a point of flaming shoddy traders.

[jamesy12345]

Shem is a member on here also

[M-R-P]

Shem is a member on here also

He is indeed but he doesn't pop in often.

[mzafeer76]

Thats why i came in here..to get a opinion..thanks guys.the dampers take less than 50kg to compress,but they just sit compressed..i thought they wud rebound up.

[mzafeer76]

Thats the dampers compressed..

[stribo]

All the dampers do is damp the action of the springs, so they have no need to rebound.

[M-R-P]

As above, all they'll do is damp and not spring back up. The P2 ones are somewhat different so a pointless comparison

[t5 pete]

The spring rebounds the strut

[mzafeer76]

So i'm good to keep them then?

[M-R-P]

Yeah, they're fine mate.

[jamesy12345]

He is indeed but he doesn't pop in often.

I'll be seeing him tomorrow to get the Shark back and a bacon sandwich

[960kg]

I think your all getting your terminology incorrect!

When you compress a spring it then uncompresses (rebound)....unless it has something holding it in the compressed state like the weight of the car or rusty pistons etc.

On standard suspension one is usually allowed after the compression one rebound then one slight compression followed by the final rebound.

I have just been out to my V70 with 40mm lowered Bilstein struts on the front and over a 1/2" compression it will rebound back to the normal height then repeat for just a minimal amount.

If the struts are off the car and do not rebound to the original length after compression then the pistons or dampers are sticking.

One has to have rebound for the suspension to work, no matter what amount in distance.

With the rear shockers they act different as they dont have the springs attached and if compressed sometimes will not rebound until on the motor with the spring or until a new damper has bled itself in.

It doesn`t matter whatsoever what car the springs or shock absorbers hang on the physics is all the same.........if the setup is soft the compression / rebound happens more.

[M-R-P]

I'll be seeing him tomorrow to get the Shark back and a bacon sandwich

Does he throw the sarnie in as part of the service?

[M-R-P]

I think your all getting your terminology incorrect!

When you compress a spring it then uncompresses (rebound)....unless it has something holding it in the compressed state like the weight of the car or rusty pistons etc.

On standard suspension one is usually allowed after the compression one rebound then one slight compression followed by the final rebound.

I have just been out to my V70 with 40mm lowered Bilstein struts on the front and over a 1/2" compression it will rebound back to the normal height then repeat for just a minimal amount.

If the struts are off the car and do not rebound to the original length after compression then the pistons or dampers are sticking.

One has to have rebound for the suspension to work, no matter what amount in distance.

With the rear shockers they act different as they dont have the springs attached and if compressed sometimes will not rebound until on the motor with the spring.

It doesn`t matter whatsoever what car the springs or shock absorbers hang on the physics is all the same.........if the setup is soft the compression / rebound happens more.

Terminology aside, the OP was asking if his shocks (completely unattached to any other part of the car) should return to the full length when compressed and released - which they shouldn't.

P2 shocks however, do but that's for another thread.

[WOODY T5]

is not that gas one`s do and oil filled dont reboud peeps

[960kg]

Terminology aside, the OP was asking if his shocks (completely unattached to any other part of the car) should return to the full length when compressed and released - which they shouldn't.

P2 shocks however, do but that's for another thread.

No need for another thread as the OP should of stated whether Gas filled or Oil filled shockers.

As you should know P2 i believe are gas shockers and so will return to there full length with or without a spring.......however most older designed Volvo`s as standard maybe just oil filled so will not return unless something forces them!


woody just beat me to it and also knocked the nail on the head!

[jamesy12345]

Does he throw the sarnie in as part of the service?

No that would be the nice lady in the burger van nearby, comes with her own Sirocco

[M-R-P]

is not that gas one`s do and oil filled dont reboud peeps

No need for another thread as the OP should of stated whether Gas filled or Oil filled shockers.

As you should know P2 i believe are gas shockers and so will return to there full length with or without a spring.......however most older designed Volvo`s as standard maybe just oil filled so will not return unless something forces them!


woody just beat me to it and also knocked the nail on the head!

Yep and yep - I just didn't want to go into the P2 ones as they were irrelevant to this topic.

[stribo]

If we really want to get picky, and further off topic, then gas filled is a misnomer anyway,as they still have oil in them, it's just the gas that gives it its damping properties.