rotoflex to cv conversion

[cnicholson]

Can somebody provide a list of parts needed to convert rotoflex to CV joints, or shall i shell out the £600 for the canleys conversion?

[TimW]

2no Rover 100 near side drive shafts (£45 each)
2no volvo 340 (1.4L or 1.7L PETROL only) lobro joints.  You get 2no on each drive shaft (£25-£40 used)
2no conversion adaptors from Nick Jones (search forum) (about £90)
2no modified rotoflex vertical links (also available from Nick Jones) maybe £100 to have them machined?
2no MGF rear hubs (£30 pair)
2no MGF wheel bearings (£45 pair)

Remove gearbox side Rover lobro from shaft and fit volvo lobro

Bolt to car with modified vertical links. Simples!!

[James]

You can do it the way Tim states reasonably cheaply— it's a better conversion overall as it removes a weak spot on the rotoflex vertical link and no more shims.

[tiggrr1]

Or if your a lazy git like me

Buy the lot off Nick anyway,  2 10CR's , 2 HCR's, 2 or 3 AutoEccosse's with lots of abuse and no problems at all

Nick is the Man to talk too !!!

[cnicholson]

many thanks for the simples answer my shopping is much complete on ebay...

daft question but, do i need to change the bearings to mgf ones if so is there a part number or am i getting confused

[Clive]

If you use the MGF cv's ie as the Nick jones system, yes, you must use the MGF bearings. And that means having the uprights machined to accept the bearings.
As far as I can make out, all the other conversions keep the rather painful rotoflex rear bearings (OK, the escort conversion that nick initially used keeps them too, but he played about and came up with a clever way of improving them)

Having got the conversion bolted up on the chassis, I don't think there is a better route. Unless somebody comes up with a shaft that slots into a subaru diff and you do that at the same time.....

[Nick Jones]

I've done a couple of different ones.
The first was based on Mk3/4 Escort driveshafts, which uses the standard vertical link, hub and bearings with a simple machining mod to the hub.

The second and superior version (developed by Josh Bowler first) is based on Rover 100 driveshafts and hub.  This uses the R100/MGF bearing pack which requires the vertical link to be machined to suit.  Both hub and bearing are stronger and no more shimming!

Both the above use a Volvo 340 CV on their inner ends and simple CV/UJ adaptor to mount that to the diff flange.

Both variants are the subject of ongoing [s]cruel and unusual treatment[/s] endurance testing by various forum members and others  :P

Neither are available at the moment for various reasons.  
I've heard that Jigsaw do one now but I don't have any details on that.

Cheers

Nick

[Richard B]

Nick_Jones wrote:

I've done a couple of different ones.
The first was based on Mk3/4 Escort driveshafts, which uses the standard vertical link, hub and bearings with a simple machining mod to the hub.

Both variants are the subject of ongoing [s] cruel and unusual treatment [/s] endurance testing by various forum members and others  :P

Version 1 works for me and meant I could have the aluminium vertical links from Canleys, as there were doubts about the suitability of machining them to take the MGF bearing.

As the only maching required for version 1 was to the Hub it was less intrusive and pretty much a bolt on conversion.

The CC one uses Triumph FWD CV's which bolt directly to the hub without modification

[Richard B]

Cribbing Tim's list;

2no Escort MkIII near side drive shafts
2no volvo 340 (1.4L or 1.7L PETROL only) lobro joints.  You get 2no on each drive shaft
2no conversion adaptors (Volvo CV - Triumph flange) from Nick Jones (about £90)
Modified Triumph rotoflex hubs (Simple turning down job in the lathe)
Some larger diameter shims and a couple of custom spacers

Keeps the OE Triumph bearings



I reckon you can do it for under £300.

[Clive]

The jigsaw version uses a some audi CV I believe, but retains the std triumph bearing pack. Apparently to retain originality Mr Field told me.

The MGF bearing was a big factor in my choice. To teh extent I even bought genuine Rover bearing packs rather than the ebay cheapo's.