View Full Version : New type of thread repair

Chucks Stude
10-02-2009, 05:40 PM
Stumbled across this new insert. It was on TV, but looked like it might be a good product.
The reason that I need it, is to repair the two water-manifold bolts that go into the front of the block. The A/C compressor plate has stressed these two bolts, and allowed water to leak and destroy the threads in the block. Your thoughts on this?


10-02-2009, 05:47 PM
Dang, thought you were going to fix the forum.

'50 Champion, 1 family owner

Mike Van Veghten
10-02-2009, 05:51 PM
Not new.
We have used them for years in tooling at work.

They do work well.


Colgate Studebaker
10-02-2009, 10:21 PM
Look to me like what I've called Heli-coils for years in the past. Yes, they work very well. B.V.

10-02-2009, 11:23 PM
Doesn't appear to be the Helicoil system. Helicoils are a shaped strip of material wound like a spring. This is more like an externally and internally threaded bushing.

Often in error, never in doubt
____1966 Avanti II RQA 0088_______________1963 Avanti R2 63R3152____________Rabid Snail Racing

10-03-2009, 05:31 AM
You're right Jim. The website says this:
TIME-SERTŪ is a solid bushing insert. This guarantees easy installation and allows for full load use of tapped hole, ensuring protection against stress and vibration.

Winston-Salem, NC
Visit The NEW Studebaker Skytop Registry website at: www.studebakerskytop.com

10-03-2009, 02:17 PM
These are used extensively to repair threads in the aluminum Northstar GM engines. In fact they were automatically installed with any head gasket repair.

Best so far 15.065 @ 91.36 MPH Island Dragway Great Meadows NJ Summer 2009.

Chucks Stude
10-04-2009, 10:32 AM
Good, than they should work well to fix the block on my car. Thanks for the feedback.

10-04-2009, 11:59 AM
These have been used for years to fix porsche 911 2.7 liter engines when head studs pull out of the crankcase. Once installed, it is a permanent fix, even under racing conditions.

54 Champion coupe
48 Champion Convert

Dan White
10-05-2009, 10:21 AM
I used these on my Hudson St 8 aluminum head 20 years ago. They work great and have had no problems.

Dan White
64 R1 GT
64 R2 GT

10-05-2009, 01:53 PM
timeserts are similar to helicoils, but their gimmick is that instead of being sound from diamond shaped wire they are a solid insert of consistent thickness, so they are smaller OD than a Helicoil (hence the name, the threads are "timed" so the crest of the outside tooth is opposite the root of the inside.) And yes, these are the recommended fix for stripped stud holes in Porsche crankcases.

A Helicoil is probably cheaper and I would assume would work just as well when space is not an issue. If you're dealing with a casting with limited meat around the stripped hole, a Timesert is the way to go.


55 Commander Starlight