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Re: Roller throw out bearing

To: "MG List" <mgs@autox.team.net>
Subject: Re: Roller throw out bearing
From: Max Heim <mvheim@studiolimage.com>
Date: Tue, 19 Oct 1999 10:41:14 -0700
There seems to be a lack of recognition of this "feature". Is it 
documented in the service manual? Most of the replies seem to think it is 
merely an issue of friction. I don't know either way, having no 
experience with RB cars. But have you tried increasing the idle speed to 
compensate? That seems pretty straightforward.

Tab Julius had this to say:

>
>Let me restate the question, as I think it's getting lost.
>
>I definitely don't ride the clutch.  HOWEVER, the car has (ostensibly for
>emissions reasons) a "feature" to reduce idle speed while the clutch is
>depressed.  If you plan to take the car anywhere, the clutch has to go in
>sometime :)
>
>As I live in both a hilly area, where sometimes we must have the clutch in,
>and because of the weather, I'd rather not have a reduced idle that could
>cause it to stall even during valid uses of the clutch.
>
>So, I'm asking if it's appropriate to bypass it - that is, will it hurt
>anything (don't think so), and also HOW to bypass it.  I don't ride the
>clutch, but I also don't like to have the idle drop during the times I need
>to use the clutch.
>
>Thanks
>
>- Tab
>
>
>At 09:01 AM 10/19/99 -0500, Peter C. wrote:
>>Folks, 
>>      A few quick thoughts. Roller bearing or carbon.... don't "ride" the
>>clutch. The only time that a clutch can become worn is when your foot is on
>>the pedal. If you don't touch the pedal, the clutch wont wear. Also, the
>>forward thrust you are placing on the crankshaft will cause the premature
>>wearing of the thrust washers on your main bearings.... not insignificant.
>>Don't mean to sound "preachy" But some people go through a clutch every 50k
>>and some will last 300k.... the difference is not the car or the clutch...
>>honest.
>>      At lights, car in neutral, foot off the pedal.
>>      Peter C
>>----
>>At 08:52 AM 10/19/1999 , Larry Hoy wrote:
>>>James, et al,
>>>
>>>I was going to suggest a roller throw out bearing might
>>>alleviate Tab's problem, but I have never used one, and over
>>>the years I have heard good and bad things about them.  I
>>>would be interested in the input from this list on them, so
>>>what do you think?  The biggest issue would be, are they
>>>durable?  No sense replacing a carbon bearing with one that
>>>doesn't last as long.
>>>
>>>Larry Hoy
>>>
>>>> -----Original Message-----
>>>> From: owner-mgs@autox.team.net
>>>> [mailto:owner-mgs@autox.team.net]On
>>>> Behalf Of James Nazarian Jr
>>>> Sent: Tuesday, October 19, 1999 2:43 AM
>>>> To: Larry Hoy
>>>> Cc: Tab Julius; mgs@autox.team.net
>>>> Subject: RE: Bypass clutched idle reducer?
>>>>
>>>>
>>>> You might try the roller throw out bearing.  I am
>>>> personally very happy
>>>> with it and I know many others are too.  I think
>>>> that it also aleviates
>>>> many of the problems with riding the cluch and
>>>> related issues.  I notice
>>>> many drivers stop at a light and sit there in
>>>> gear clutch depressed until
>>>> light turns.  I'm not saying this is your problem
>>>> but you can't even think
>>>> about doing this with the carbon bearings.  As
>>>> far as I can tell the
>>>> roller bearing fixes that, and it lasts quite a
>>>> bit longer.
>>>>
>>>> James Nazarian
>>>> '71 B roadster
>>>> '74 BGT with no sills
>>>> '63 Buick 215 eyeing another rolling chassis
>>
>>
>>
>


--

===============================
Max Heim
mvheim@studiolimage.com
Studio L'Image/San Francisco
415 643 9309 : 415 643 9307 fax
Studio L'Image/New York
212 242 3366 : 212 242 3399 fax


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