Marina 262 Suspension Analysis
Posted: Mon Jan 14, 2013 10:55 pm
This technical analysis of the Leyland Marina 262 was posted on the OzMarina Yahoo group (thanks, Adrian/Yowee
).
May not be entirely relevant to the UK Marina, as the 262 had the bigger and heavier E6 engine, and Leyland Australia made a number of changes to the suspension and steering systems to fit it (and the BW 3-speed gearbox).
CONCLUSION
From the study carried out, the following design changes were recommended :-
1. Front spring rate to be changed from 115 lb/in, to 142 lb/in
2. Repositioning of lower wishbone to cut down the jacking effect
3. Lowering of the roll centres in conjunction with the installation of anti-roIl bars
4. Increase of front wheel travel
5. Attention should be given to damper settings
6. Reduction of front track change on bump
It was also considered that replacing the torsion bar with a coil damper unit could give better damper settings together with a more economical assembly.
May not be entirely relevant to the UK Marina, as the 262 had the bigger and heavier E6 engine, and Leyland Australia made a number of changes to the suspension and steering systems to fit it (and the BW 3-speed gearbox).
CONCLUSION
From the study carried out, the following design changes were recommended :-
1. Front spring rate to be changed from 115 lb/in, to 142 lb/in
2. Repositioning of lower wishbone to cut down the jacking effect
3. Lowering of the roll centres in conjunction with the installation of anti-roIl bars
4. Increase of front wheel travel
5. Attention should be given to damper settings
6. Reduction of front track change on bump
It was also considered that replacing the torsion bar with a coil damper unit could give better damper settings together with a more economical assembly.