FAQ

Overhaul and Revalving

0. For which shock absorbers is overhaul available?
1. When do I need overhaul?
2. What to put in my revalving order?
3. Can I have my shock absorbers' stroke shortened?
4. Can my shock absorber be shortened?
5. How much does overhaul or revalving cost?
6. Why is my adjustment dial (click) stiff/stuck?
7. Can I bring my car to TEIN for shock absorber overhaul?
8. How long does overhaul at TEIN take?
9. How can I get an overhaul/revalving form, if I have lost my instruction manual?
10. What are my shock absorbers' damping force characteristics?
11. Can I request overhaul directly at TEIN?
12. Do my shock absorbers need breaking in?

Unusual Noises

1. I purchased a brand new TYPE FLEX DAMPER with pillow upper mount. It was the first time I installed a shock absorber by myself, but when I am driving, I hear a clattering noise. Did I buy a faulty product?
2. I purchased a brand new TYPE FLEX DAMPER with pillow upper mount. There were no problems installing the shock absorber, but I can hear clattering and tapping sounds.
3. I think aeration is occurring in my shock absorber and I hear a tapping sound. How do I release the air?
4. I bought a old used TYPE-H damper and after installing it, I can hear a discomforting noise.
5. I purchased a set of S.TECH springs and after installation, I can hear noises which sound like metal rubbing against each other. Is it something I should be worried about?
6. I installed my part a while ago, but recently I started hearing some clanging noises.
7. I installed the SUPER STREET DAMPER to my car, and when I drive over rough surfaces, I can hear squeaking noises from the rear. Is it a defect?
8. I installed BASIC WAGON to my car, but while I drive, I can hear squeaking and/ or rattling noises. Was it not properly installed?

Damping Force Adjustment

1. How do I adjust damping force?
2. My 16-level damper's adjustment dial (click) turns more than 16 clicks.
3. Which damping force level do you recommend?
4. What damping force level is the factory setting?
5. Do EDFC Series' 32-, 64- or 96-level mode broadens the damping range?
6. How can I get repair/replacement for an adjustment dial (click)?

Vehicle Ride Height Adjustment / Settings

1. It is my first time adjusting the ride height. What ride height position should I set my car at?
2. If I mainly want to drive at the circuit, how should I set the spring rate and ride height?
3. I wanted to lower the ride height by 30mm so I lowered the lower seat by 30mm. But the actual ride height dropped by 45mm. Why?
4. Why is the front spring rate for the Mark II and Supra set so high, between 12k-18k?
5. I purchased the SUPER STREET DAMPER and I intend to go to the circuit, so I increased the spring rate by 4k. I lowered the seat to the lowest position, but the ride height doesn't drop very much. Why?
6. I lowered my car very low, but the ride comfort is bad. What can I do to improve the comfort level?
7. I want to secure more stroke by cutting the bump rubber. How much should I cut?
8. I often hear the ride comfort worsens as you lower the ride height, but if I raise the ride height, does it affect the ride comfort?
9. I have HIGH.TECH springs on my car, but the ride height is not as low as I thought. Is the product defective?
10. When looking at springs, e.g. S.TECH, spring rates are written like the following (2.9∼5.5k). Does this mean that the spring rate can be chosen within the range?

Miscellaneous Questions

1. What types of warranties are available?
2. I don’t have my warranty certificate. Am I still covered?
3. What are the recommended browsers to use this site?