[DeTomaso] A-arm bushings...should they require machining?
jgkrenton at comcast.net
jgkrenton at comcast.net
Fri Sep 22 10:50:13 EDT 2017
Joe:
I have some NOS bushings (Circa 1985) laying around. With my cheap digital caliper they measure 1.180. (They are also pretty cold this morning) I have a Delrin bushings from the same era and they measure 1.179.
.008 inches sounds like an awful lot to press in if they were steel/rubber OEM style, but if they are polyurethane that probably isn't too bad.
Others may have better advice.
Jeff/2467
----- Original Message -----
From: "grayjim" <grayjim at cox.net>
To: "Charles Engles" <cengles at cox.net>, "Joseph F. Byrd, Jr." <byrdjf at embarqmail.com>, detomaso at server.detomasolist.com
Sent: Friday, September 22, 2017 7:08:00 AM
Subject: Re: [DeTomaso] A-arm bushings...should they require machining?
Dear Chuck,
I had the same experience. Rubber hard to get out, urethane easy to install.
Any driving scheduled for the weekend? I have to go to Duncan on Sat for a
funeral.
Jim Gray
-----Original Message-----
From: Charles Engles
Sent: Thursday, September 21, 2017 8:11 PM
To: 'Joseph F. Byrd, Jr.' ; detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] A-arm bushings...should they require machining?
Dear Joe,
I don't know.
I do know that twenty odd years ago when I converted
both Panteras to polyurethane bushings from Pantera Performance Center, they
went in with just finger/hand pressure. No press needed. Obviously, they
must have been smaller than yours and I don't understand why there is such a
great difference.
Puzzled, Chuck Engles
-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Joseph F. Byrd, Jr.
Sent: Thursday, September 21, 2017 5:32 PM
To: detomaso at server.detomasolist.com
Subject: [DeTomaso] A-arm bushings...should they require machining?
I have removed the bushings from the front A-Arms and have found their ODs
to be a consistent 1.184". the A-arm bore IDs varied slightly around
1.181". this makes sense as the IDs would be 30mm with the bushings
oversized for MY expected press fit of ~ 0.003".
NOW, the new bushing ODs vary around 1.189". to ME, that is way too much
press and could plastic yield the A-arm bores.
Is it expected to machine the new bushing ODs? (Pretty common practice for
new parts to be oversized for field fitting in the machines I use to work
to allow for possible damage/wear.)
OR
Throw away the micrometers and get a bigger press?
Joe/5177
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-------------- next part --------------
Joe:
I have some NOS bushings (Circa 1985) laying around. With my cheap
digital caliper they measure 1.180. (They are also pretty cold this
morning) I have a Delrin bushings from the same era and they measure
1.179.
.008 inches sounds like an awful lot to press in if they were
steel/rubber OEM style, but if they are polyurethane that probably
isn't too bad.
Others may have better advice.
Jeff/2467
__________________________________________________________________
From: "grayjim" <grayjim at cox.net>
To: "Charles Engles" <cengles at cox.net>, "Joseph F. Byrd, Jr."
<byrdjf at embarqmail.com>, detomaso at server.detomasolist.com
Sent: Friday, September 22, 2017 7:08:00 AM
Subject: Re: [DeTomaso] A-arm bushings...should they require machining?
Dear Chuck,
I had the same experience. Rubber hard to get out, urethane easy to
install.
Any driving scheduled for the weekend? I have to go to Duncan on Sat
for a
funeral.
Jim Gray
-----Original Message-----
From: Charles Engles
Sent: Thursday, September 21, 2017 8:11 PM
To: 'Joseph F. Byrd, Jr.' ; detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] A-arm bushings...should they require machining?
Dear Joe,
I don't know.
I do know that twenty odd years ago when I
converted
both Panteras to polyurethane bushings from Pantera Performance Center,
they
went in with just finger/hand pressure. No press needed. Obviously,
they
must have been smaller than yours and I don't understand why there is
such a
great difference.
Puzzled, Chuck Engles
-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On
Behalf
Of Joseph F. Byrd, Jr.
Sent: Thursday, September 21, 2017 5:32 PM
To: detomaso at server.detomasolist.com
Subject: [DeTomaso] A-arm bushings...should they require machining?
I have removed the bushings from the front A-Arms and have found their
ODs
to be a consistent 1.184". the A-arm bore IDs varied slightly around
1.181". this makes sense as the IDs would be 30mm with the bushings
oversized for MY expected press fit of ~ 0.003".
NOW, the new bushing ODs vary around 1.189". to ME, that is way too
much
press and could plastic yield the A-arm bores.
Is it expected to machine the new bushing ODs? (Pretty common practice
for
new parts to be oversized for field fitting in the machines I use to
work
to allow for possible damage/wear.)
OR
Throw away the micrometers and get a bigger press?
Joe/5177
_______________________________________________
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Posted emails must not exceed 1.5 Megabytes
DeTomaso mailing list
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use
the links above.
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list.
They also grant the list owner permission to maintain an archive or
approve
the archiving of list messages.
_______________________________________________
Detomaso Email List is not managed by POCA
Posted emails must not exceed 1.5 Megabytes
DeTomaso mailing list
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use the links above.
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