How can I find out exactly what this TSB is for. I'm hoping its the faulty block (weak thread holes which caused a head gasket leak) that I had to replace. It says engine and engine cooling and the summary says 2az-fe engine block. *kb

 

If toyomoho doesn't post a reply then I'd just get a copy of the TSB from the dealer. There are web sites that will sell you a copy of the explanation - http://www.alldata.com/

 

I don't have a copy of the TSB.

Some non-Toyota shops have been using Time-Serts (steel threaded insert) to repair the block.

 

Can't find any TSB on Alldata dealing with the thread issue. The TSB above deals with front end engine noise.

 

Are the time-serts the same as helicoils with a different name?

 

I'm not sure this will answer your question:
http://www.tacomaterritory.com/forum...ad.php?t=98157

http://www.timesert.com/

http://www.emhart.com/products/helic...FQgfswodngbyTw

 

No, Time-Sert is a solid threaded bushing unit, not a coil that winds into the taped hole. Never used them but can see the advantage of this design. The Heli-Coil can back out of the treads.

There is another bushing called a Keensert that uses a differant locking mechanisum.

Visit the Time-Sert website:

http://www.timesert.com/

Measure the installed threaded portion of the bolt tread to get an idea of the insert length needed. Apparently there is an oversize outer diameter insert but if using this you might cut into the coolant passages when making the treads in the block.

Can't find a whole of info on this fix, you might call the Time-Sert folks for application info. Might be worth a try if the issue is a new block versus something like this.

Have not heard anything on Toyota approved fixes. Not sure what Toyota is doing, the issue is coming up and owners are not getting any support (to date) for what is a design flaw.

 

I'm not sure this will answer your questionhttp://www.xhcljx.com/eng)