<VV> Two helicoils in line?

[Joel McGregor]

I've always used Time-Serts but I haven't used one for a cylinder stud yet.  They are vastly superior to Heli-coils and come in various lengths.  The Keensert website says "One length per size".
They would be cheaper than a Time-Sert and maybe better in certain applications.  Time-Serts aren't good for thin wall applications because the expand to lock feature can break the surrounding material if it's too thin.  They also require special tools to install.  The advantage of them is that the threads are "Timed" internal to external so the insert doesn't have to be very thick to be strong.
http://www.timesert.com/
They have the following lengths available for 7/16-14:
.400
.600
.870
1.000
1.250
1.500
Joel McGregor
________________________________________
From: virtualvairs-bounces at corvair.org [virtualvairs-bounces at corvair.org] On Behalf Of larry [larry at schuberts.com]
Sent: Wednesday, February 22, 2012 9:44 AM
To: 'chuck mckinley'; 'VirtualVairs AA'
Subject: Re: <VV> Two helicoils in line?

I have heard of this and I believe it will work.  Is there room for a
Keensert?  They come in various lengths do not require special tools
Larry Schubert