Eaton’s TVS – Twin Vortices Series supercharger is the latest range of blowers from Eaton. They are more efficient, produce less heat while having smaller, lighter rotors than Eaton’s earlier roots blowers. Both Jaguar and Range Rover have employed the R1320 and R1900 series superchargers for their 3.0 & 5.0 ranges.
Despite their performance improvements, these superchargers are becoming known for premature wear. Drive couplers are failing, and case bearings are wearing sooner than expected but with a degree of maintenance you can keep your blower working at optimum. On the TVS supercharger rattling at idle is the first indication that your coupler is failing or broken. Continued noise may indicate that a bearing is starting to wear. The important thing is to have a supercharger repaired when you hear early signs of something being wrong – if they are left rattling too long damage can spread from bearing wear, which is curable, to wear of the rotors and/or main casing, which can become bad enough to scrap the supercharger.
Replacing the bearings and oil seals in your supercharger will give it a new lease of life and peace of mind. As long as issues are not ignored and repaired early your supercharger should be serviceable, our Eaton TVS supercharger rebuild kits start at £105 for the snout bearing set.
Please note all prices quoted unless otherwise stated include UK vat at 20%.
The Achilles heel on the Jaguar and Range Rover TVS is the sprung drive coupler, if you have a rattle at idle it could very well be this. The coupler spring wears against the shaft until it breaks and badly wears the shaft as pictured. On the V6 TVS R1320 models our uprated solid coupler removes the spring from question and works on worn shafts without issue. Our uprated oil filled nylon couplers start at just £42.
Unfortunately for 5L V8 models solid couplers have been inconsistent, often these have allowed a rattling/fluttering at idle. Without long-term study of the impact of this on the supercharger we do not sell or advise the use of uprated solid couplers on the 5L R1900 TVS. We do offer genuine OEM couplers starting at £110.
If you are getting a rumbling or scoring sound from the front of your supercharger or suspect wear for any other reason this can be easily remedied with our TVS snout rebuild kit. At only £105 it is a cost-effective way to have your car back to good health. Our snout rebuild kit includes both inner and outer sealed snout bearings.
In addition, why not take advantage of the removal to invest in a cheap bit of maintenance. A fresh oil change on the TVS is regularly ignored as access is only available when the blower is off, at £24 our oil kit is a very cost effective piece of preventative maintenance.
BUT – if you have any doubt over the condition of the case bearings, it would be advisable to change them as well. The case bearings are prone to premature wear, and you may wish to avoid having to remove and refit the supercharger again in the near future. For the sake of two more bearings first time around consider opting for our Jaguar/Range Rover supercharger rebuild kit!
Our TVS R1320 & R1900 supercharger rebuild kit includes OE components for peace of mind and life of your supercharger. Our kit includes the main components required to refresh and quieten your supercharger back to new with Inner and outer snout bearings, case needle bearings, solid(V6 Only) or OEM coupler and fresh oil from £272.
If you have had an isolator failure and are unlucky enough to have damage on the drive hub or pins, these can be bought separately from £35.
None of our standard rebuild kits include parts to refurbish the central rotor group. When rebuilding a TVS supercharger we would always advise assessing your rotor group condition. A failing rotor group if not addressed can and in most cases will continue to wear at a rapid rate. The basic sign of a failing rotor group is metallic oil, if you have this it is likely from the gears which are non-serviceable. Please get in touch if you have found this and need advice and options. In rare occasions bearings can have wear without impacting the gears, in these instances we do sell rotor group bearings and seals to repair with. Please be aware that Eaton Corporation themselves consider this to be an unreliable and often unsuccessful route to repair, bearings are rolled in and replacing loses retention and all timing of the rotors. We would only advise an experienced builder to attempt this kind of repair at their own risk.
Rotor bearing and seal sets start at £144, we can also sell aluminium retaining rings for TIG welding on request.
If you want to take on rebuild of your Eaton TVS R1320 / R1900 Jaguar or Range Rover rotor pack we can supply you the parts, but caution that it is not a straightforward task.