[Healeys] Clutch plate

Bob Spidell bspidell at comcast.net
Sun Nov 7 09:34:57 MST 2021

re: "the clutch plate would have to be stuck [to the] transmission shaft"

The most plausible explanation yet. Sitting for years, esp. in a damp 
climate, the splines could very well 'rust-weld' together given their 
small clearance. I don't know if it's common practice, but I always put 
some tenacious grease, usually wheel bearing grease, on those splines 
(thin coat only).

On 11/7/2021 7:59 AM, Harold Manifold via Healeys wrote:
> I would sort out the hydraulics first and then if it still doesn’t 
> move the clutch pressure plate mechanism may be seized. The clutch 
> plate would have to be stuck to both the pressure plate and the 
> flywheel and or the transmission shaft to prevent movement.
> Harold
> *From: *Simon Lachlan via Healeys <mailto:healeys at autox.team.net>
> *Sent: *Sunday, November 7, 2021 1:43 AM
> *Cc: *Healeys <mailto:healeys at autox.team.net>
> *Subject: *Re: [Healeys] Clutch plate
> After/during a protracted battle with my clutch, I can confirm that it 
> takes a lot of effort to move the fork by hand. A LOT. I used a lever 
> and got virtually nowhere, but then, it seems, I’d been sold the wrong 
> clutch cover.
> What did impress me was the comparison between how hard/impossible it 
> was to move by hand and how easy it was to get it to move with the 
> pedal once the hydraulics were 100%.
> Certainly, I’d want to convince myself that the hydraulics were 100% 
> before assuming that the disk was stuck.
> Simon
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of *Bob 
> Spidell via Healeys
> *Sent:* 07 November 2021 03:56
> *To:* healeys at autox.team.net
> *Subject:* Re: [Healeys] Clutch plate
> re: "Would this happen if the clutch disc was stuck to the flywheel?"
> I think if it was just the clutch disk stuck to flywheel you'd still 
> get at least some movement of the pedal. Early cars used coil springs 
> in the cover plate to hold the disk firm to the flywheel, and later 
> cars used diaphragm 'springs.' I think with either you'd at least be 
> able to move the pedal until the springs reached their limit of travel 
> (or you left leg reached its limit of strength).
> It's a long shot SWAG, but since the car has sat for a long time it's 
> conceivable the fluid in the line has gelled and/or crystallized to 
> the point it prevents flow to the slave cylinder (I have had BF gell 
> up). I'm not sure you can move the release bearing fork much by hand, 
> though I haven't tried; those are some strong springs in the cover plate.
> Bob
> On 11/6/2021 7:52 PM, Don via Healeys wrote:
>     Sorry I didn’t finish my story about the fixes I’ve done so far .
>     When I first got the car and I tried to push the clutch pedal it
>     wouldn’t move.  After removing the carbs , which I’m going to
>     rebuild I was able to access the clutch master cylinder. After
>     removing the lines to the master cylinder i was able to push the
>     pedal to the floor . I’m replacing the lines to both the clutch
>     and brake master cylinder. I’m replacing both master cylinders .
>     I’m replacing the hydraulic fluid tank as it leaks. When I got
>     under the car and looked at the clutch slave cylinder, which I’m
>     replacing I can’t move the clutch fork. I can’t budge it , I can’t
>     move the piston rod . I’m going to finish rebuilding, replacing
>     everything in both the clutch and brake hydraulics system. I’m
>     just Puzzled as to why won’t move . Would this happen if the
>     clutch disc was stuck to the flywheel?  I may answer my own
>     question the farther I get into the rebuild. I don’t want to need
>     to replace the clutch.
>              Don
>     Sent from my iPhone
>         On Nov 6, 2021, at 10:08 PM, gradea1 at charter.net wrote:
>         Twelve years could have built up some "goo" in the clutch
>         master cylinder and prevent it from moving the piston. As
>         Perry says, could also be the same issue in the slave.
>         However, the clutch is hydraulic and the pedal does not move
>         any mechanics (other than the piston rod) so it can't be
>         mechanically hung up. The clutch disc is another issue which
>         may show up later, and I would wonder if the brakes are
>         functioning? Moisture really plays havoc with hydraulics
>         especially if the car is not in a conditioned space.
>         This is a good time to change all the fluid, replace hoses,
>         rebuild or replace cylinders-fun stuff. Hank
>         -----------------------------------------
>         From: "Perry Small via Healeys"
>         To: "Don Day"
>         Cc: "healey list"
>         Sent: Saturday November 6 2021 6:48:37PM
>         Subject: Re: [Healeys] Clutch plate
>         Don
>         Maybe the slave cylinder is locked up. Pull the pin at the
>         slave and see if the clutch pedal will move.
>         P
>         Sent from my iPhone
>         > On Nov 6, 2021, at 7:36 PM, Don Day via Healeys
>         <healeys at autox.team.net> <mailto:healeys at autox.team.net> wrote:
>         >
>         > Hi List
>         > If a 65 1/2 BJ8Healey has been sitting for over 12 years ,
>         Allegedly in a garage and I’m thinking the clutch plate could
>         be stuck to the flywheel, can’t push clutch pedal in , can it
>         be freed up .
>         > Thanks Don
>         >
>         >
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