car diy

repairs and upgrades on my car.

Friday, April 22, 2005

upgrade suspension with coilover springs and performance struts

I replaced the OME struts and springs on my 1992 honda accord ex with coilover springs and performance struts, on both the front and the rear.

You will need a spring compressor and a impact wrench for compressing/decompressing the spring when disembling the strut.

The following is the job flow:

1. jack up the car
2. remove the wheel
3. remove the strut mount screws (3 on front, 2 on rear)
4. remove bolts holding the strut to the damping fork
5. when the strut is free of attachment, move it around to lower it away from the car.
6. use the spring compressor to compress the spring so the it doesn't expand to the full length of the strut. Once in this state, use either a hex or a grip plyer to lock the strut axis, at the mean time loosen the screw to disemble the strut.
7. take every component of the strut apart and put them in original order on the floor. You will need to reuse some of the components for your new strut.
8. decompress the spring using the impact wrench.
9. slip the sleeve that comes with the coilover spring onto the new strut, make sure the flat end (the end that doesn't have the thread all the way to the end) is against the strut base.
10. put allen screws to center it and tighten it.
11. adjust the height-adjustment rings on the sleeve for desired spring position.
12. put on the spring
13. depend on the specific set of springs and strut, you might find out the original bump stopper are not needed, as a matter of fact, for my case, I have to remove them completely - sometimes you can cut them shorter.
14. put the components in the correct order and assemble the new strut. This time you don't need the spring compressor anymore because now you have the coilover spring, which is much shorter in length. You compress/decompress the
spring using the rings along the sleeve.
15. reverse the process of removing the strut to put it back on, tighten the screws according to torque specs in the manual.
16. be very precise about adjusting the height of the springs on all four wheels as this will affect your car's handling.

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