[Healeys] Pilot (Spigot) Bush Size

[Mark Donaldson]

Good point, Gary.
I also told Jim off site that whilst I hadn't fitted a pilot bush in
many years, I seemed to recall soaking it in engine oil for 24 hours
before fitting it. Having said that, I don't know how much oil a
phosphor-bronze bush would soak up, but I do know that it is slightly
porous.

I removed the old bush fairly easily by using the old railway
engineers trick: I filled the cavity behind the bush with oil then
inserted a tight-fitting drift.  A few solid clouts forced the bush
out.  Hydraulics 101.

Mark
Auckland. NZ



-----Original Message-----
From: warthodson at aol.com [mailto:warthodson at aol.com] 
Sent: Tuesday, 9 October 2012 2:32 a.m.
To: ardmorebusiness at xtra.co.nz; rjhco at att.net; healeys at autox.team.net
Subject: Re: [Healeys] Pilot (Spigot) Bush Size

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