[Healeys] Pilot (Spigot) Bush Size

[warthodson at aol.com]

The pilot bush is a press fit in the crank shaft. When the pilot bush is
installed in the crank the ID of the hole in the pilot bush will decrease.
This need to be taken into account when sizing a new bush so that it will not
fit too tightly on the spigot of the transmission input shaft. I do not recall
the specific amount of crush & it of course depends on the amount of
interference between the O.D.  of the bush & the I. D. of the hole in the
crank.
Gary Hodson


-----Original Message-----
From: Mark Donaldson <ardmorebusiness at xtra.co.nz>
To: 'Richard J. Hockert' <rjhco at att.net>; 'Healey List'
<healeys at autox.team.net>
Sent: Sun, Oct 7, 2012 7:55 pm
Subject: Re: [Healeys] Pilot (Spigot) Bush Size


Jim,

I've just checked two NOS pilot bushes.
It is 1.00" OD and 0.74" ID

Mark
Auckland, NZ


-----Original Message-----
From: Richard J. Hockert [mailto:rjhco at att.net]
Sent: Monday, 8 October 2012 6:32 a.m.
To: 'Healey List'
Subject: [Healeys] Pilot (Spigot) Bush Size

Anyone know offhand the O.D. of the pilot (spigot) bush for a 3000
engine?
I.D. is .750", .0625 wall makes it 7/8"?

Thanks in advance...

Best regards,
Jim Hockert
Dallas, TX
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