[DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera Technical)
Julian Kift
julian_kift at hotmail.com
Fri May 1 09:27:41 EDT 2015
Mine are Dennis' too, after I wrote there was a flickering memory of something about Dennis using a hexagonal internal shape to the bushings with the steel insert being hexagonal to round for the bolt, I wonder if this is the differentiator?
Date: Fri, 1 May 2015 08:22:48 -0500
From: Richard at richardgreenblum.com
To: detomaso at poca.com
Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera Technical)
Same for me, mine don¹t squeak either. They came from PPC in Castle Rock.
I followed Dennis¹ instructions, whatever they were, it was more than 10
years ago now.
Richard
Austin, TX
From: Julian Kift <julian_kift at hotmail.com>
Date: Friday, May 1, 2015 at 8:17 AM
To: John Donahue <demongusta at me.com>, Mike Thomas <mbefthomas at comcast.net>
Cc: deTomaso List <detomaso at poca.com>
Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera Technical)
This begs the question are all the vendors polyurethane offerings the
same? I have poly bushing and can't remember when I last greased
everything, but never had any squeaks.
Julian
> From: demongusta at me.com
> Date: Fri, 1 May 2015 01:22:05 -0700
> To: mbefthomas at comcast.net
> CC: deTomaso at POCA.com
> Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera
Technical)
>
> Ah yes, life is but a trade-off. Stiff and squeaky or softer and
quiet, The older you get, the more you like the latter.
>
> > On Apr 30, 2015, at 8:20 PM, Mike Thomas <mbefthomas at comcast.net>
wrote:
> >
> > I have a set of the original style bushings, but as I'm running an
offset
> > set in the front for more caster, and the shims are all forward,
I'd lose
> > some of the caster by going back to the stock bushings.
> >
> > I am getting awfully tired of the squeaking . . . .
> >
> > Mike Thomas
> >
> > -----Original Message-----
> > From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Mike
Drew via
> > DeTomaso
> > Sent: Wednesday, April 29, 2015 2:12 PM
> > To: demongusta at me.com; sjcarguy60 at yahoo.com
> > Cc: deTomaso at POCA.com
> > Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera
Technical)
> >
> >
> > In a message dated 4/29/15 12 34 27, demongusta at me.com writes:
> >
> >
> >> What is the main advantage of the Poly A-arm bushings? If they
> >> are
> >>> replaced with the stock rubber, I assume you would not have the
> >>> squeaking, correct.
> >>
> >
> >>>> Interesting--I never saw this original message, or John
Donahue's
> > response, or Dennis' response to that; the only thing that came
through is
> > John's
> > subsequent reply. Is this something that bled over from a web-based
forum
> > perhaps?
> >
> > As to the question above--the principal selling point of poly
bushings is
> > that they offer less compliance (which is what bushings are for in
the first
> >
> > place). They are favored by racers and autocrossers (back in the
day, race
> >
> > Cobras came with solid metal bushings, yow!). The main advantage
they
> > used to have over factory bushings was greatly reduced cost.
> >
> > Drawbacks are many, however. As you mentioned, they can squeak
something
> > awful if they aren't properly (and routinely) lubricated. (People
often
> > fail to lube the outside ends of the bushings, which is where most
of the
> > squeaking happens). Too, they can deliver a somewhat harsher ride,
and
> > fail to
> > absorb road shocks as well, transmitting them through the body
instead.
> >
> > Now MaseratiSource sells stock-style bushings at a very affordable
price,
> > making them competitive with poly bushings. I vastly prefer
stock-style
> > bushings for a variety of reasons.
> >
> > Getting the old ones out is time-consuming and labor-intensive, but
not
> > especially difficult. Using a sawzall (you can use a hacksaw but it
would
> > take forever), you cut the large end off the bushing. Then you use
a
> > just-large-enough deep well socket on one side, and a
just-small-enough
> > socket on the other, put the whole affair in a vice and compress
it; the
> > small socket should be small enough to fit inside the A-arm tube,
and the
> > large one large enough to accept the bushing as it is pressed out
of the
> > A-arm.
> >
> > My wife Lori changed all 16 of her bushings herself, once the
process was
> > demonstrated, so you can definitely do it too! :>)
> >
> > Mike
> >
>
>
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-------------- next part --------------
Mine are Dennis' too, after I wrote there was a flickering memory of
something about Dennis using a hexagonal internal shape to the
bushings with the steel insert being hexagonal to round for the bolt, I
wonder if this is the differentiator?
Date: Fri, 1 May 2015 08:22:48 -0500
From: Richard at richardgreenblum.com
To: detomaso at poca.com
Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera Technical)
Same for me, mine don^1t squeak either. They came from PPC in Castle Rock.
I followed Dennis^1 instructions, whatever they were, it was more than 10
years ago now.
Richard
Austin, TX
From: Julian Kift <julian_kift at hotmail.com>
Date: Friday, May 1, 2015 at 8:17 AM
To: John Donahue <demongusta at me.com>, Mike Thomas <mbefthomas at comcast.net>
Cc: deTomaso List <detomaso at poca.com>
Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera Technical)
This begs the question are all the vendors polyurethane offerings the
same? I have poly bushing and can't remember when I last greased
everything, but never had any squeaks.
Julian
> From: demongusta at me.com
> Date: Fri, 1 May 2015 01:22:05 -0700
> To: mbefthomas at comcast.net
> CC: deTomaso at POCA.com
> Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera
Technical)
>
> Ah yes, life is but a trade-off. Stiff and squeaky or softer and
quiet, The older you get, the more you like the latter.
>
> > On Apr 30, 2015, at 8:20 PM, Mike Thomas <mbefthomas at comcast.net>
wrote:
> >
> > I have a set of the original style bushings, but as I'm running an
offset
> > set in the front for more caster, and the shims are all forward,
I'd lose
> > some of the caster by going back to the stock bushings.
> >
> > I am getting awfully tired of the squeaking . . . .
> >
> > Mike Thomas
> >
> > -----Original Message-----
> > From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Mike
Drew via
> > DeTomaso
> > Sent: Wednesday, April 29, 2015 2:12 PM
> > To: demongusta at me.com; sjcarguy60 at yahoo.com
> > Cc: deTomaso at POCA.com
> > Subject: Re: [DeTomaso] [POCA Forum] A-ARM BUSHINGS (Pantera
Technical)
> >
> >
> > In a message dated 4/29/15 12 34 27, demongusta at me.com writes:
> >
> >
> >> What is the main advantage of the Poly A-arm bushings? If they
> >> are
> >>> replaced with the stock rubber, I assume you would not have the
> >>> squeaking, correct.
> >>
> >
> >>>> Interesting--I never saw this original message, or John
Donahue's
> > response, or Dennis' response to that; the only thing that came
through is
> > John's
> > subsequent reply. Is this something that bled over from a web-based
forum
> > perhaps?
> >
> > As to the question above--the principal selling point of poly
bushings is
> > that they offer less compliance (which is what bushings are for in
the first
> >
> > place). They are favored by racers and autocrossers (back in the
day, race
> >
> > Cobras came with solid metal bushings, yow!). The main advantage
they
> > used to have over factory bushings was greatly reduced cost.
> >
> > Drawbacks are many, however. As you mentioned, they can squeak
something
> > awful if they aren't properly (and routinely) lubricated. (People
often
> > fail to lube the outside ends of the bushings, which is where most
of the
> > squeaking happens). Too, they can deliver a somewhat harsher ride,
and
> > fail to
> > absorb road shocks as well, transmitting them through the body
instead.
> >
> > Now MaseratiSource sells stock-style bushings at a very affordable
price,
> > making them competitive with poly bushings. I vastly prefer
stock-style
> > bushings for a variety of reasons.
> >
> > Getting the old ones out is time-consuming and labor-intensive, but
not
> > especially difficult. Using a sawzall (you can use a hacksaw but it
would
> > take forever), you cut the large end off the bushing. Then you use
a
> > just-large-enough deep well socket on one side, and a
just-small-enough
> > socket on the other, put the whole affair in a vice and compress
it; the
> > small socket should be small enough to fit inside the A-arm tube,
and the
> > large one large enough to accept the bushing as it is pressed out
of the
> > A-arm.
> >
> > My wife Lori changed all 16 of her bushings herself, once the
process was
> > demonstrated, so you can definitely do it too! :>)
> >
> > Mike
> >
>
>
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>
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