Powerflex Bush replacement (Incl Pictures)
After MOT failure on bushes (common fault on Spider/gtv's), here's how things progressed.
1. Remove spring arms and trailing arms - not too difficult, a bit messy,fit spring compressor to aid removal of spring arm and for safety.
2. Get local garage to extract old bushes (NOT worth doing yourself)£50
3. Clean up arms with drill wire brush and apply anti-rust treatment.£4
4. Apply black rust resistant metal paint (3 coats),5 year resistance.£7
5. Fit Powerflex bushes using copperease type grease (supplied) - making sure that any paint is removed on surfaces in contact with tophat part of the bushes as the bushes are a very tight fit to refit.
6. Using remaining grease (supplied) cover bush surfaces before fitting.
7. Here's the time consuming and difficult part -
First, the spring arms must be fitted as the trailing arms are attached to the shared mounting on the end of the outer spring arm mounting bolt.Lining up the central hole with the hole in the fork on the vehicle is tricky, (used a trolley jack and selection of various size bolts and socket set extension bars to align the bush, again, the bush is a tight fit and will be persuaded to move with a club hammer or trolley jack even with liberal amounts of the grease.;this took around 1 hour per bush.
8. When fitting the trailing arms, fit the inner mounting first, do not engage the outer mount until the inner bush alignment in the mount has been done as I found that this allows the inner mount to slide in much more freely without stressing the bush and causing resistance to fit.
9.Jack up hub to ride height and tighten (outer mounts had maximum torque possible) inner mounts slightly less as forks quite soft.
10. Refit road wheels.
11. worth getting dust mask as danger of brake lining dust inhailation.
12. Check bolt torque after 100 miles.
Job cost: bushes £146
Rust treatment £4
Garage work £50