CV Joints

PostPost by: abstamaria » Fri Aug 20, 2004 1:38 am

Is there a CV joint system for the Elan that does not require pulling out
the output shaft from the diff? In other words, a true bolt-on conversion
in lieu of the Rotoflexes?

Andres
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PostPost by: elanplus2 » Fri Aug 20, 2004 1:50 am

THAT'S WHAT I HAVE HERE.

RAY



-----Original Message-----
From: Andres B. Sta Maria [mailto:***@***.***

Is there a CV joint system for the Elan that does not require pulling
out
the output shaft from the diff? In other words, a true bolt-on
conversion
in lieu of the Rotoflexes?

Andres
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PostPost by: lotuselanman » Fri Aug 20, 2004 2:36 am

Gidday Andres, Yes there is such an item. Contact : Steve Taylor :
***@***.***

Fax : 613-9739-8944
PH 613-9761-1903
Postal : Elan Factory, 5 Marong court, Boronia Heights, 3155, Melbourne,
Australia.
He is good man, good products, good service and is not full of crap.
See ya, Les


----- Original Message -----
From: "Andres B. Sta Maria" <***@***.***>

Sent: Friday, August 20, 2004 11:38 AM
Subject: [LotusElan.net] CV Joints



Is there a CV joint system for the Elan that does not require pulling out
the output shaft from the diff? In other words, a true bolt-on conversion
in lieu of the Rotoflexes?

Andres
Manila












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PostPost by: davidallen » Fri Aug 20, 2004 7:50 am

All the conversions I know about in the UK, ie Spyder, Mick Miller and Tony
Thompson, are all directly replace the rotoflexes. Indeed, I don't know of
any conversion which are not!

However, in saying that, the output shafts are prone to failure, relatively
easy to remove with the diff is still in the car (assuming they are still in
one piece) and very expensive to replace if they do fail. Consequently, if a
drive shaft conversion does exist which replaces the output shafts as well
it must be worth looking at.

David

-----Original Message-----
From: Andres B. Sta Maria [mailto:***@***.***
Sent: 20 August 2004 01:39
To: ***@***.***
Subject: [LotusElan.net] CV Joints



Is there a CV joint system for the Elan that does not require pulling out
the output shaft from the diff? In other words, a true bolt-on conversion
in lieu of the Rotoflexes?

Andres
Manila












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PostPost by: frearther » Fri Aug 20, 2004 9:17 pm

You may just want to (have to) replace the diff output shafts anyway. When
I replaced the diff bearings, I found that my shafts were twisted and
needed replacing anyway. Replacing what needed replacement came up only a
couple of hundred dollars shy of buying the CV setup, so I went with the
modern-day setup.

Art

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PostPost by: richboyd » Sat Aug 21, 2004 4:10 am

David,

The CV-conversion kit I purchased from RDEnt requires replacement of the
inner stub axles. There is no inner adapter plate. The inner CV joint bolts
directly to the new inner stub axles (with the six bolts that hold the CV
joint together). The outer end still uses an aluminum adapter plate (with
steel inserts).

The new inner stub axles are very nice pieces; nice machining and very
stout. But, I am sure that the kit's cost is greater because the conversion
kit must include these expensive new stub axles, not just CV-joints, axles,
and adapters. If you are going to replace the standard stub axles anyway
(non-RDEnt systems), as David suggests is prudent, then the extra cost of
the RDEnt kit fades away.

One advantage of the RDEnt kit is that the intermediate axle shaft can be
slightly longer without an inner adapter plate. The longer axle would have
less anglular deflection at each CV joint for any given suspension
movement. I think this angular difference would be slight and probably not
a real benefit.

Rich Boyd



At 12:50 AM 8/20/2004, you wrote:
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PostPost by: EMA7K » Tue Aug 24, 2004 11:13 am

But I have found a source for the rotoflex couplings??????110 per pair
including postage and VAT in the UK
I reckon that it is a saving of about ?20 over what PM and CN charge and
as you may well need 4 of them then it?d be ?40 cheaper??mind you having
said that what was the cost of the CV conversion?????.....mick miller
was knocking them out at ?385 +vat?.(did that include the +2 by the
way??)?..so its back to the start of that argument again??.CV conversion
or original donuts??8 donuts???440?.1 CV conversion kit ?450??.it all
depends on how your donuts last?..as it has been mentioned before they
just aren?t made the same as they used to be??.if they only last a
couple of years do you bite the bullet and get the CV?do you want
originality???....
As a famous man once said???.? You never know before ?till after a bit
since ?
Who has what CV conversion????.....there is mick millers version, tony
thompsons version, the ?lan factory from OZ (although this seems to be
very expensive especially when you stick the postage on!!!) and isn?t
there also a spyder version??.
Who has which version and what are the pro?s and cons???.what are the
verdicts?????
Cheers
Gareth

Gareth Flanagan
Senior Technician
For Martin Stockley Associates Ltd
Riverside
4 Commercial Street
Manchester M15 4RQ
Tel: 0161 835 1122
Fax: 0161 833 1846
Email: <mailto:***@***.***>
***@***.***
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indirectly as a result of to these files as a result of their
transmission to or use by the recipient; or (ii) virus contamination
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Tel: +44 (0) 161 835 1122
Fax: +44 (0) 161 833 1846
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PostPost by: tdafforn » Tue Aug 24, 2004 12:13 pm

Hi Gareth...
I've just fitted the twin UJ shafts from TT racing, the car had had the
newer style donuts fitted (bolt holes made from folded steel) and all
the bolts had siezed.
Seem V. Well engineered. Downside is that you need to limit droop or
they bind up. Not a problem IF (like me) your shocks are shot! Driven
them a couple of hundred miles so far, and my only concern is hearing
knocking at the back on one sharp turn upon acceleration (could be the
splines locking!)
Mick Millers is a double CV joint system. Also looks nicely made, only
worry someone pointed out is that the adapter plates are made of
aluminium, and so there may be a chance of the bolt holes ellongating?
Spyder system is CV (although I think earlier versions are UJ) and
donuts to retain some of the donut cushioning. The Donut end is also
failsafe to prevent the shafts from flailing around when they go.
Cheers
Tim
PS Oulton looks out of the question for me, the wife wasn't fooled by
the life size model of myself I made as a substitute fro saturday!



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PostPost by: Elanman99 » Tue Aug 24, 2004 12:54 pm

Last time I saw your car Gareth you never pointed out the 4WD conversion, in
fact even with the engine out of the car I still did not see the front drive
shafts!

Why else would you need 8 Rotoflexes?

Ian Phillips

-----Original Message-----
From: Gareth Flanagan [mailto:***@***.***
Sent: Tuesday, August 24, 2004 12:13 PM
To: Cheshirelotusownersgroup; Lotuselan
Subject: [LotusElan.net] dont know if anyone is interested....donuts v
CV


But I have found a source for the rotoflex couplings??????110 per pair
including postage and VAT in the UK
I reckon that it is a saving of about ?20 over what PM and CN charge and
as you may well need 4 of them then it?d be ?40 cheaper??mind you having
said that what was the cost of the CV conversion?????.....mick miller
was knocking them out at ?385 +vat?.(did that include the +2 by the
way??)?..so its back to the start of that argument again??.CV conversion
or original donuts??8 donuts???440?.1 CV conversion kit ?450??.it all
depends on how your donuts last?..as it has been mentioned before they
just aren?t made the same as they used to be??.if they only last a
couple of years do you bite the bullet and get the CV?do you want
originality???....
As a famous man once said???.? You never know before ?till after a bit
since ?
Who has what CV conversion????.....there is mick millers version, tony
thompsons version, the ?lan factory from OZ (although this seems to be
very expensive especially when you stick the postage on!!!) and isn?t
there also a spyder version??.
Who has which version and what are the pro?s and cons???.what are the
verdicts?????
Cheers
Gareth

Gareth Flanagan
Senior Technician
For Martin Stockley Associates Ltd
Riverside
4 Commercial Street
Manchester M15 4RQ
Tel: 0161 835 1122
Fax: 0161 833 1846
Email: <mailto:***@***.***>
***@***.***
Web: www.martinstockleyassociates.co.uk
Disclaimer Notice:
This E-mail and any attachments to it (this "E-mail") are intended only
for each party to whom they are addressed.
This E-mail may contain confidential information, the status of which is
not lost or waived by mis-transmission. Each unintended recipient should
delete all copies of this E-mail, destroy any hard copies and notify the
sender by E-mail or telephone, you must not use, disclose, distribute,
print or copy any part of it.
Martin Stockley Associates Ltd accepts no responsibility for: (i) these
drawing files following manipulation, amendment or variation of them by
recipient, and (ii) the use of these files by the recipient for any
purpose other than that intended in this issue.
Martin Stockley Associates Ltd shall not be liable for any loss or
damage (including consequential loss or damage) howsoever and whatsoever
caused arising directly or any: (i) corruption (including any
transportations of figures or measurements and errors) that occurs
indirectly as a result of to these files as a result of their
transmission to or use by the recipient; or (ii) virus contamination
that is caused by, contained in or transmitted by the use of these
files.
Martin Stockley Associates Ltd
Riverside
4 Commercial Street
Manchester M15 4RQ
Tel: +44 (0) 161 835 1122
Fax: +44 (0) 161 833 1846
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<mailto:***@***.***>
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PostPost by: EMA7K » Tue Aug 24, 2004 1:02 pm

Ian
Er...no not quite what I meant......I was just trying to compare
prices......ie changing the donuts twice or getting the CV thing done
once....you'll need 4 doh'nutz for the first change and 4 for the second
assuming that you keep the car that long......
Sorry I should have been clearer........although 4 wheel drive would
certainly be different...
Cheers
G


-----Original Message-----
From: Ian Phillips [mailto:***@***.***
Sent: 24 August 2004 13:53
To: ***@***.***
Subject: RE: [LotusElan.net] dont know if anyone is interested....donuts
v CV Now we have a four wheel drive Elan!

Last time I saw your car Gareth you never pointed out the 4WD
conversion, in
fact even with the engine out of the car I still did not see the front
drive
shafts!

Why else would you need 8 Rotoflexes?

Ian Phillips

-----Original Message-----
From: Gareth Flanagan [mailto:***@***.***
Sent: Tuesday, August 24, 2004 12:13 PM
To: Cheshirelotusownersgroup; Lotuselan
Subject: [LotusElan.net] dont know if anyone is interested....donuts v
CV


But I have found a source for the rotoflex couplings??????110 per pair
including postage and VAT in the UK
I reckon that it is a saving of about ?20 over what PM and CN charge and
as you may well need 4 of them then it?d be ?40 cheaper??mind you having
said that what was the cost of the CV conversion?????.....mick miller
was knocking them out at ?385 +vat?.(did that include the +2 by the
way??)?..so its back to the start of that argument again??.CV conversion
or original donuts??8 donuts???440?.1 CV conversion kit ?450??.it all
depends on how your donuts last?..as it has been mentioned before they
just aren?t made the same as they used to be??.if they only last a
couple of years do you bite the bullet and get the CV?do you want
originality???....
As a famous man once said???.? You never know before ?till after a bit
since ?
Who has what CV conversion????.....there is mick millers version, tony
thompsons version, the ?lan factory from OZ (although this seems to be
very expensive especially when you stick the postage on!!!) and isn?t
there also a spyder version??.
Who has which version and what are the pro?s and cons???.what are the
verdicts?????
Cheers
Gareth

Gareth Flanagan
Senior Technician
For Martin Stockley Associates Ltd
Riverside
4 Commercial Street
Manchester M15 4RQ
Tel: 0161 835 1122
Fax: 0161 833 1846
Email: <mailto:***@***.***>
***@***.***
Web: www.martinstockleyassociates.co.uk
Disclaimer Notice:
This E-mail and any attachments to it (this "E-mail") are intended only
for each party to whom they are addressed.
This E-mail may contain confidential information, the status of which is
not lost or waived by mis-transmission. Each unintended recipient should
delete all copies of this E-mail, destroy any hard copies and notify the
sender by E-mail or telephone, you must not use, disclose, distribute,
print or copy any part of it.
Martin Stockley Associates Ltd accepts no responsibility for: (i) these
drawing files following manipulation, amendment or variation of them by
recipient, and (ii) the use of these files by the recipient for any
purpose other than that intended in this issue.
Martin Stockley Associates Ltd shall not be liable for any loss or
damage (including consequential loss or damage) howsoever and whatsoever
caused arising directly or any: (i) corruption (including any
transportations of figures or measurements and errors) that occurs
indirectly as a result of to these files as a result of their
transmission to or use by the recipient; or (ii) virus contamination
that is caused by, contained in or transmitted by the use of these
files.
Martin Stockley Associates Ltd
Riverside
4 Commercial Street
Manchester M15 4RQ
Tel: +44 (0) 161 835 1122
Fax: +44 (0) 161 833 1846
***@***.*** <
<mailto:***@***.***>
mailto:***@***.***>

































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PostPost by: tdafforn » Tue Aug 24, 2004 1:52 pm

Did you factor in the cost of a new set of 16 bolts alongside the
dinners out needed to passify a loved one each time you spend a day
under the car swearing while removing the couplings.
Cheers
tim

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Biosciences
University of Birmingham
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B15 2TT
(0121) 414 5881


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Biosciences
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Birmingham
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PostPost by: EMA7K » Tue Aug 24, 2004 2:24 pm

I thought it was 24 bolts each time you changed a full set of
doh..nutz.....6 per coupling int it????
Cheers
G

-----Original Message-----
From: Tim Dafforn [mailto:***@***.***
Sent: 24 August 2004 14:47
To: ***@***.***
Subject: Re: [LotusElan.net] dont know if anyone is interested....donuts
v CV Now we have a four wheel drive Elan!

Did you factor in the cost of a new set of 16 bolts alongside the
dinners out needed to passify a loved one each time you spend a day
under the car swearing while removing the couplings.
Cheers
tim

Gareth Flanagan wrote:














--
Dr Tim Dafforn
MRC Fellow
Biosciences
University of Birmingham
Edgbaston
Birmingham
B15 2TT
(0121) 414 5881


--
Dr Tim Dafforn
MRC Fellow
Biosciences
University of Birmingham
Edgbaston
Birmingham
B15 2TT
(0121) 414 5881

















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PostPost by: tdafforn » Tue Aug 24, 2004 2:26 pm

pardon my maths...
All I know is that there are too many of the little blighters
Tim

Gareth Flanagan wrote:


--
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MRC Fellow
Biosciences
University of Birmingham
Edgbaston
Birmingham
B15 2TT
(0121) 414 5881


--
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Biosciences
University of Birmingham
Edgbaston
Birmingham
B15 2TT
(0121) 414 5881
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PostPost by: nigelrbfurness » Tue Aug 24, 2004 2:26 pm

Well this is a long and ongoing debate... of the kind
I don't usually like to get involved in but for me the
question was answered in '96 when fitted the Spyder CV
conversion which retains one, caged, donut. Took it
off recently to fit an LSD then put it back on again,
good as the day it was new as far as I could see, noe
evidence of the donut cracking up. I've been driving
and maintaining my own Elans since '76 (good grief is
it really that long) and there is no way I would
return to rotoflexes. As far as I can see there are
no disadvantages with the setup I have, it transforms
the car's driveability and its maintenance schedule in
one operation. And it is necessary for an LSD
conversion...

Nigel Furness





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PostPost by: Frank Howard » Tue Aug 24, 2004 3:09 pm

Chris Neil sells the donuts for L85 a pair. Could the VAT and postage
actually be as much as L45?

Frank Howard
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Minnesota
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