I created this blog because I could not find the kind of tutorials I needed for some models and miniatures I wanted to build. I hope it will be a useful source of information for anyone who may experience the same lack of first-hand, step-by-step reports.
I am not an expert by any means, so feel free to comment my posts or to contact me to share your advice.

Thursday 5 January 2012

Rear suspension

There is not much left apart from assembling the remaining parts. The rear suspension is a complex sub-assembly with no less than six contact points to either the monocoque or the engine to fit in one single operation. I always wanted to avoid touching the chromed parts with my dirty fingers, but now it is just impossible to do. I hope there will be no long time stains or blemish developing from that.
I started with the left side, which I figured was to be the most difficult because of the side duct. I chose the following order:
  1. lower triangle attachment. It is the stronger point of the whole assembly and its conception should prevent a total collapse if anything goes wrong afterward.
  2. transmission shaft. It is easy to forget (I forgot it on the right side, fortunately early enough to correct the situation) and cannot be positioned later on.
  3. short upper arm. It slides around a sub-assembly on the engine.
  4. spring. It fits tightly on the shock absorber lower half. It is then easy to compress and slide under the long upper arm.
  5. shock aborber. The upper half slides around the aforementioned sub-assembly once the shaft is placed inside the lower half. At this point, the suspension shows its higher strength if need be.
  6. long upper and lower arms. They fit inside the holes at the end of the monocoque.
There are finally two body panels to cement over the long arm attachment points, with no problem at all. At first sight, the wheel hubs look to follow a vertical axis. None of the parts is cemented, the suspension is meant to be a fully working assembly, but I would never try it as it looks very fragile.

There are a few defects popping out at this stage. The left lower long arm is pushing on the exhaust pipes, even though it looked like the latter were in the right position. It is unfortunately impossible to gauge this before. The left upper attachment hole on the monocoque is not quite aligned with the hole on the left hand cam cover. It is a serious issue since it shows that the engine tilts slightly clockwise. I am afraid that the car will not stay on four wheels but on three... Like the front suspension coil springs, the rear ones are flexed a bit and I do not like the look of it. The ends of the springs sit quite well on the shock absorber parts but the plastic is simply not strong enough for the stiffness of steel.
Even though it is not pictured below, the right rear suspension is quite similar. The only issue to be mentioned is the long upper arm pushing onto the little boxes moulded on the cam cover.


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