[Healeys] Pressure plate question

Jerry Costanzo grumpyinloomis at ssctv.net
Wed Dec 3 08:24:25 MST 2014


Concerning the pivot bolt, this "kit" came from another Healey owner so the 
pivot bolt was already installed and looks NEW.  I thought maybe the new 
kits came with the bolt installed but was not sure.  Does anyone remember 
the length required so I can compare to this one?

Jerry

-----Original Message----- 
From: tom mitchell
Sent: Tuesday, December 2, 2014 9:10 PM
To: 'Jerry Costanzo'
Subject: RE: [Healeys] Pressure plate question

I've done a few Toyota conversions.
In my own and a friends I've done the Toyota transmission installs twice.

My question is: is he sure that the throw-out bearing pivot bolt is the
correct length?
In both cars I've had to replace the fulcrum bolt with one that was longer,
otherwise they slipped.

Mine lasted some 10 years.
I had (at the time) to extend the fulcrum bolt (I ignorantly used washers),
unfortunately over time this proved insufficient as there were not enough
threads to hold the bold in place causing it to eventually worked its way
out causing slippage.
I also made a longer slave clutch push rod, which helped, yet I think the
longer fulcrum bolt was more of the answer.

BTW the original Smitty install directions talk about the fork, fulcrum and
distance, yet I have not seen this mentioned in the later kits.

I hope that helps


Tom Mitchell
1965 Austin Healey BJ8 MKIII

"Ability is what you are capable of doing.  Motivation determines what you
do.  Attitude determines how well you do it." - Lou Holtz

Doing it and doing it right, is up to you!

"Life is what happens to you while you're busy making other plans." -John
Lennon

-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Jerry
Costanzo
Sent: Tuesday, December 02, 2014 4:11 PM
To: healeys at Autox.Team.Net
Subject: [Healeys] Pressure plate question

Healey group,

One of the members of our club owns a Healey that is mostly of  early 60s
vintage.  His original transmission was having problems so he bought a
toyota conversion kit.  But he used his old pressure plate, and had clutch
slippage.
The original Healey clutch plate is 0.004 thicker than the Toyota conversion
clutch.  The pressure plate is a 10 inch and must not be putting enough
pressure on the clutch plate or it would not slip.  The bearing is not
riding on the pressure plate surface.

Can this old pressure plate really be that sensitive to only 4 thousand
difference?

Or did he somehow damage the springs when he pulled it out of the car?

The only suggestion I had for him after measuring everything was b buy a
new
pressure plate.  I can see no other reason for the clutch to slip.    Any
other ideas??

Jerry
$12.75
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