The Model SS ROAMERDRIVE is an upgraded version of our model SX first introduced in 2004. The upgrades on the SS model include a more open front-end architecture that enables oil shared with the transfer case to be circulated more efficiently. An Archimedes screw on the main shaft retains oil behind a ‘dam’ in the front cover to ensure efficient lubrication at high speeds and on steep inclines.
The SS model was first developed to meet the demands of enthusiasts installing non-standard 200 Tdi and V8 motors into Series Land Rover where the SX versions were found to run at elevated temperatures in high speed motorway driving.
This modern overdrive uses planetary gear technology developed from North American automatic transmissions and has little in common with the historical designs of overdrive such as the Fairey, Toro and Santana that were developed in the 1960s using spur gears. Compared with these heritage designs, the SS ROAMERDRIVE runs virtually silently and experience has shown that owners can expect to cover many, many thousands of miles with no service required whatsoever.
The shift lever is fitted to the R.H. side of the transmission tunnel in the same way as older designs of Series overdrive. Exposed lever components and trim are made of stainless steel. A dipstick assembly is provided to monitor transfer case oil level. This dipstick screws into the oil filler aperture and a convenient alternative filler plug is provided in a new top cover plate.
This overdrive will fit all Land Rover Series I, II, IIA and III, four and six cylinder models, with the exception of those fitted with one-ton transfer cases. It will also not fit the Stage 1 V8 model.
On six cylinder models, the ‘L’ bracket to which the lever mounts must be extended forward by 50mm.
DRIVING WITH AN SS ROAMERDRIVE
To engage the overdrive when on the highway, wait until you are travelling at about 50 mph (80 kph) in fourth gear. Depress the clutch and move the actuating lever forward exactly as you would when changing gear. When the clutch is released the engine RPM will drop by 28% and the noise level in the cab of the Land Rover will drop significantly. As changing traffic and gradient dictate, you can engage and disengage the ROAMERDRIVE.
You will find the Global Roamer overdrive very useful as a splitter gear between normal third and normal fourth. This allows you to climb long hills where normal fourth would be too high and normal third too low.
You cannot damage a ROAMERDRIVE by using it in all gears.
In off-road conditions, when driving in low range, the overdrive is useful for raising the ratios making it unnecessary to engage and disengage the high range lever.
Driving a Land Rover with an overdrive is a pleasant experience as it is possible to have a normal conversation at relatively high motoring speeds.
The inclination to drive faster with the overdrive negates considerable fuel savings to be had if one retains one s original driving patterns. Our experience shows that drivers who use the ROAMERDRIVE at moderate speeds will save up to 15% on their fuel costs. Long-term reduction in wear and tear of engine and drive line components is also considerable. Bear this in mind and your Global Roamer overdrive will pay for itself quickly.
MANUFACTURER WARRANTY TERMS
Below are the Warranty terms direct from the manufacturer (http://roamerdrive.com/warranty.html). No warranty is given by Syncro Gearboxes:
“Unless otherwise stated elsewhere, ROAMERDRIVE overdrives are warranted against defects in materials and workmanship for a period of one (1) year from date of purchase.
This warranty is made to the original purchaser only and covers ROAMERDRIVE overdrives that have been installed on the same vehicle since purchase. We (or our appointed distributor) will repair or replace any overdrive unit that suffers from manufacturing defects within the warranty period.
In order to take advantage of this warranty the unit must be returned, at your expense, to the distributor. If you purchase the overdrive directly from our factory in West Vancouver, the unit must be returned to our factory at your expense.
PRIOR TO RETURNING a unit under warranty, you must first contact your distributor, or our factory in West Vancouver, to discuss your issue. Once we have all the necessary information, we will issue a Warranty Return Approval document. We will NOT accept any unit that is returned under warranty if it has not first been issued a Warranty Return Approval document.
Your Warranty Return Approval document will have detailed instructions on the shipping documentation that must be sent with the overdrive unit being returned under warranty. Not following the warranty return shipping instructions may result in unnecessary additional government charges being levied, which will be your responsibility.
Once warranty work is done, our distributor or the factory will return the unit to you freight prepaid.
Transfer case gear noise is not covered under this warranty. If your transfer case gears are worn, then your noise problem can be rectified by replacing these gears, not by replacing the overdrive. It should be noted that initial cases of minor gear noise tend to be self-correcting as the new and old gears in the gear train bed in together over the first 10,000 km.
Under no circumstances will we cover the cost of removing or replacing the overdrive on a vehicle, or be responsible for any other expenses whatsoever.
Our warranty does not cover damage caused by lack of lubrication, use of improper oil, or damage caused by overheating the ROAMERDRIVE in applications with non-standard engines and gear boxes.”