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FE Power Forums => Non-FE Discussion Forum => Topic started by: fekbmax on August 02, 2016, 01:17:14 PM

Title: Time serts
Post by: fekbmax on August 02, 2016, 01:17:14 PM

Are the common carbon steel time serts what is commonly used it the aluminum heads when replacing the helicoils or is a better grade or different material serts being used ?

Title: Re: Time serts
Post by: jayb on August 02, 2016, 01:25:52 PM

I like these better than time serts; I've broken a time sert or two.  Also you can get these with larger diameter external threads, to hold more force.  I've used the 5/8" OD ones before for 3/8-16 threads, like rocker shaft studs, to handle really big valve springs.

http://www.use-enco.com/CGI/INPDFF?PMPAGE=757&PARTPG=INLMK32

Title: Re: Time serts
Post by: fekbmax on August 02, 2016, 02:01:36 PM

Sweet !!.
Thanks Jay.
Should I use a standard tapered tap with those or a bottom tap ?
Maybe a tighter fit with the tapered tap ?

Title: Re: Time serts
Post by: jayb on August 02, 2016, 06:48:17 PM

Quote from: fekbmax on August 02, 2016, 02:01:36 PM

Sweet !!.
Thanks Jay.
Should I use a standard tapered tap with those or a bottom tap ?
Maybe a tighter fit with the tapered tap ?

I've always used a standard bottoming tap.  They come with some kind of a thread sealing or locking compound already applied - Jay