Brass Bush Install G7
Generation 7 Celica Brass Gear Linkage Bush Install Guide
Overview
This is a step by step guide on the installation of brass gear linkage bushes for the Generation 7 Celica. This guide covers all Generation 7 variants and will also help with the installation for Generation 6s, MR2s and other Toyota models. This is how I installed mine and I’ve had no problems since. I take no responsibility for any damage caused by anyone following these instructions. You follow these at your own risk!
A fairly common complaint with the Gen 7 gearbox is that it’s notchy and rough. I saw these brass bushes advertised and was fairly sceptical at first but decided to give it a try anyway on my 50,000 mile 2001 T-Sport. Before I installed them, the gear change was really letting the car down, to the point where I doubted keeping the car.
After installation, all I can say is wow! These made a huge difference and I certainly felt a massive improvement especially when the gearbox is warmed up. I was back in love with my T-Sport again!
These brass bushes are available from www.speed-source.net in America and www.gtschris.com in the UK. I got mine from gtschris for £20 and the delivery was quick too. Link: http://www.gtschris.com/store/comersus_lis...p?idCategory=55
Tools required
10mm socket wrench
Philips screwdriver
Flat blade screwdriver
Needle nose pliers
Sand paper
Installation time
Approximately 1 hour for someone with limited experience.
Installation
Wait until the engine is cold before attempting this install as you are working very close to a hot engine and hot coolant hoses.
The pictures below are close ups of the area you will need to work in to install these brass bushes. The numbers in red refer to the steps numbered below.
Step 1
Unbolt the two 10mm bolts on top of the ECU cover.
Step 2
Remove the ECU cover by pushing the three retaining clips outwards and lifting the cover up.
Step 3
Remove the ECU cooling pipe by pulling the pipe towards the front of the car. Once this has popped off, pull the cooling pipe upwards to remove it fully.
Step 4
Connected to the back of the airbox is bracket to which is attached two air lines and one electrical connector. Disconnect the electrical connector by pressing in the release catch and withdraw the connector.
Step 5
Now remove the bracket which holds the two air lines. Do this by pulling on the release tab located at the bottom and pulling the bracket up. Move this to the side out of the way.
Step 6
Unscrew and loosen the two screws which secure the intake hose to the airbox and the throttle body. Remove the intake hose from the airbox side first. This will be stiff and require some wiggling. Now remove the intake hose from the throttle body. Note that underneath the intake hose, it is connected to a coolant hose with a circular clip, this will have to be unclipped before it can be removed.
Step 7
You should now be able to see one of the original bushes. Remove the retaining clip on top of the bush. I used a flat blade screwdriver to gently pry away the bent side of the clip and then extracted it with pliers at the same time. Remove the large washer and now split the gear linkage.
Step 8
Remove the original bush from the linkage. I used a Philips screwdriver and inserted it into the bush and levered it out. It’s fiddly so keep at it. Once removed, use a piece of sandpaper to clean up the inside of the linkage where the new bush will go. Insert the new bush and push in the c-clip provided in the kit. Put the gear linkage back together and insert the retaining clip. Note, do not reuse the large washer which was removed.
Step 9
Repeat step 8 for the second bush which is located approximately 5 inches under the throttle body and is slightly more awkward to get to.
Step 10
Reinstall all the removed engine components in the reverse order of removal and make sure everything is put back together correctly.
Now take your car for a drive and feel the differance!
I hope you find this guide helpful and let me know if I’ve missed out anything.
Good luck
Pab
