[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.comOn Thu, 4 Jul 2019 at 10:33, ian i.thomson@talk21.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] I seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK.
[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.comOn Thu, Jul 4, 2019 at 12:09 PM +0100, "CLIVE SHERRIFF" csherriff99@gmail.com> wrote: iIN, THIS MIGHT HELP ~ I THINK IT MIGHT HAVE ORIGINALLY COME FROM BOB GRUNAU (? ? ?) WHo might be able to add further wisdom perhaps. [b][i]" I am not a fan of the roller throw-out bearings. My limited experience with one was it squealed like a stuck pig. There are at least three different offset carbon thrust throw-out bearings available. All will fit the TC, but only one is correct for the standard clutch. For those interested, I can confirm the following: Standard TC/TD/TF = 0.850 " offset from carbon face to centerline of pivot pins. This is the one to use. High offset MG 1275 Midget = 0.980" approx carbon face to pin C/L. This T/O bearing is used with a shallow diaphram clutch. Low offset = 0.700 " face to C/L of pins and this is NO GOOD for T typers as the clutch . " [/i][/b][b][i]mmmmmmmmmmmmmmmmmmmmmmm [/i][/b] [b][i] [/i][/b][b][i] 1275 Sprite/MG Midget has the greater off-set carbon throw-out bearing. You may need to drill two 1/8" holes in the ends of the ears for the TC retaining springs. "[/i][/b] O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONote that: [b]The Roller or ball bearing thrust bearings are NOT suitable for XPAG Clutch release bearings.[/b] CLIVEOXFORD ukM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.com On Thu, 4 Jul 2019 at 10:33, ian i.thomson@talk21.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] I seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK.
>> Roller bearings will always wear in such a way as to self destruct eventually as they are vulnerable to muck getting in. But that's not why they are not suitable for the XPAG type of engine. When we engage the XPAG type clutch, the thrust bearing not only moves foreward, but it swings in an arc vertically onto the clutch bearing face. so needs to be able to slide vertically which the carbon allows it to do.. Ball Bearing thrust bearings need to slide into engagement axially along the crankshaft line and must have no vertical movement, which they are not designed to handle. CliveOxford, UK m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.com
[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.comOn Thu, 4 Jul 2019 at 13:07, ian i.thomson@talk21.com> wrote: Thanks for that Clive. My opinion, for what it's worth, is that the carbon thrust bearings are the way to go even for modern cars. Roller bearings will always wear in such a way as to self destruct eventually as they are vulnerable to muck getting in. Once that happens they "chatter" and wear rapidly with disastrous consequences. Modern ones amplify this by using plastic bodies which melt with the heat generation. The carbon ones will wear but in a much more controlled fashion. I have even found them to crack into two or three parts and still work perfectly. I would suggest that the need to extend service intervals is to blame as in modern cars they are in permanent contact and thus spinning with the clutch proper in order to enable self adjustment. Give me the one which will not strand me by the motorway even if I have to adjust it occasionally. I must come clean here and admit that I am working on a YB with the 8in. clutch and am really looking for the dimensions for that. Your figures for the TD/TF do not say whether they are for the 7 1/4 or 8in clutch or even if they are different. Regards Ian Notts. UK. On Thu, Jul 4, 2019 at 12:09 PM +0100, "CLIVE SHERRIFF" csherriff99@gmail.com> wrote: iIN, THIS MIGHT HELP ~ I THINK IT MIGHT HAVE ORIGINALLY COME FROM BOB GRUNAU (? ? ?) WHo might be able to add further wisdom perhaps. [b][i]" I am not a fan of the roller throw-out bearings. My limited experience with one was it squealed like a stuck pig. There are at least three different offset carbon thrust throw-out bearings available. All will fit the TC, but only one is correct for the standard clutch. For those interested, I can confirm the following: Standard TC/TD/TF = 0.850 " offset from carbon face to centerline of pivot pins. This is the one to use. High offset MG 1275 Midget = 0.980" approx carbon face to pin C/L. This T/O bearing is used with a shallow diaphram clutch. Low offset = 0.700 " face to C/L of pins and this is NO GOOD for T typers as the clutch . " [/i][/b][b][i]mmmmmmmmmmmmmmmmmmmmmmm [/i][/b] [b][i] [/i][/b][b][i] 1275 Sprite/MG Midget has the greater off-set carbon throw-out bearing. You may need to drill two 1/8" holes in the ends of the ears for the TC retaining springs. "[/i][/b] O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONote that: [b]The Roller or ball bearing thrust bearings are NOT suitable for XPAG Clutch release bearings.[/b] CLIVEOXFORD ukM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img] Virus-free. www.avast.com On Thu, 4 Jul 2019 at 10:33, ian i.thomson@talk21.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: [u][/u] I seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK.
[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562359899&sig=dBGkvBDDjWVmszOFidVdbg--~D[/img]Virus-free. www.avast.comI seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is.RegardsIan ThomsonNotts. UK.
I seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK. [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562785192&sig=4iDxvuRmdY5hP5QQPehf4g--~D[/img] Virus-free. www.avast.comOn Thu, 4 Jul 2019 at 10:33, ian i.thomson@talk21.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote:
[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562785192&sig=4iDxvuRmdY5hP5QQPehf4g--~D[/img] Virus-free. www.avast.comI seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK.
[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562785193&sig=KvaNmy7Rx8Bam4Pr8gVTDg--~D[/img] Virus-free. www.avast.comOn Sat, 6 Jul 2019 at 06:31, norman verona norman@frenchblat.com> wrote: [u][/u] The carbon thrust should not be lubricated. The reason is that the carbon should wear down at the same rate as the centre plate so that as the pressure plate pad move towards the release bearing, the pad is reducing thereby eliminating the need for adjustment. If the clutch pedal is not "riden" and you do not keep the pedal pressed down with the car in gear but stationary the thrust pad will not wear unduly. tel: 0044 741 9905 741 [b]From:[/b] mg-tabc@yahoogroups.com mg-tabc@yahoogroups.com> on behalf of laf48@aol.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> [b]Sent:[/b] Saturday, July 6, 2019 1:37:49 AM [b]To:[/b] grunau.garage@sympatico.ca; csherriff99@gmail.com; i.thomson@talk21.com [b]Cc:[/b] mg-tabc@yahoogroups.com [b]Subject:[/b] Re: [mg-tabc] Clutch release bearings Also the lubricate the carbon thrust bearing with motor oil. On another bulletin board more than a few told me that I was wrong, even with proof from owners manuals of new cars that had an oil drip port leading to the carbon thrust bushing. Len Fanelli -----Original Message----- From: 'Bob Grunau' grunau.garage@sympatico.ca [mg-tabc] mg-tabc-noreply@yahoogroups.com> To: 'CLIVE SHERRIFF' csherriff99@gmail.com>; 'ian' i.thomson@talk21.com> Cc: 'MG-TABC List' mg-tabc@yahoogroups.com> Sent: Thu, Jul 4, 2019 5:16 pm Subject: RE: [mg-tabc] Clutch release bearings Yes I said it, and still only use a carbon thrust bearing. Make SURE the clutch return spring clears the throw out bearing from the clutch when driving, Do NOT ride the pedal when driving and when stopped at a long stop light, go into neutral and take foot OFF the pedal. Bob , [b]From:[/b] mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] [b]On Behalf Of [/b]CLIVE SHERRIFF csherriff99@gmail.com [mg-tabc] [b]Sent:[/b] Thursday, July 04, 2019 7:08 AM [b]To:[/b] ian [b]Cc:[/b] MG-TABC List [b]Subject:[/b] Re: [mg-tabc] Clutch release bearings iIN, THIS MIGHT HELP ~ I THINK IT MIGHT HAVE ORIGINALLY COME FROM BOB GRUNAU (? ? ?) WHo might be able to add further wisdom perhaps. [b][i]" I am not a fan of the roller throw-out bearings. My limited experience with one was it squealed like a stuck pig. There are at least three different offset carbon thrust throw-out bearings available. All will fit the TC, but only one is correct for the standard clutch. For those interested, I can confirm the following: Standard TC/TD/TF = 0.850 " offset from carbon face to centerline of pivot pins. This is the one to use. High offset MG 1275 Midget = 0.980" approx carbon face to pin C/L.. This T/O bearing is used with a shallow diaphram clutch. Low offset = 0.700 " face to C/L of pins and this is NO GOOD for T typers as the clutch .[/i][/b][b][i] "[/i][/b] [b][i]mmmmmmmmmmmmmmmmmmmmmmm[/i][/b] [b][i]1275 Sprite/MG Midget has the greater off-set carbon throw-out bearing.. You may need to drill two 1/8" holes in the ends of the ears for the TC retaining springs.[/i][/b][b][i] "[/i][/b] O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO Note that: [b]The Roller or ball bearing thrust bearings are NOT suitable for XPAG Clutch release bearings.[/b] CLIVE OXFORD uk M MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1562785193&sig=KvaNmy7Rx8Bam4Pr8gVTDg--~D[/img] Virus-free. www.avast.com On Thu, 4 Jul 2019 at 10:33, ian i.thomson@talk21.com [mg-tabc] mg-tabc-noreply@yahoogroups.com> wrote: I seem to remember that somewhere there was a list of the dimensions of the carbon thrust bearings used in our engines. Usually I take a copy of these things but can't find it either on my computer or online. Could some kind soul please point me towards it if you know where it is. Regards Ian Thomson Notts. UK.
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