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Time-sert on exhaust thread

  • Thread starter Thread starter Johnny K
  • Start date Start date
J

Johnny K

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I am very close to actually starting my bike but have an obstacle in my way(suprise right?). The owner before me put a bolt coming out of each of the two exhaust threads from the head. A bolt from each thread on one exhaust flange. Well I did the whole top-end and when I got my new V&H exhaust and went to test the allen bolts in the head, 2 threads on one exhaust hole are wider than the other threads for the bolts and don't want to spend $80+ dollars for a time-sert kit. Is this the only way or is there another way. Thanks..
 
Find the size and pitch of your new bolts and get a heli-coil. Screw in the tap and then the coil. Done.
 
What is a Time-sert? I've heard of and installed both heli-coils and Keen-serts (the steel insert with 4 steel pins driven into the base material), but Time-sert?
 
Smokinapankake said:
What is a Time-sert? I've heard of and installed both heli-coils and Keen-serts (the steel insert with 4 steel pins driven into the base material), but Time-sert?
Click to expand...
Instead of a coil like a heli-coil it is a solid piece that screws into the tapped threads. Looks like a hollow bolt without a head.
 
Personally, for spark plug holes, ive found the Time serts to be more functional and a heck of a lot easier to use. I tried a helicoil first, but i just couldnt get it to grab in the head on the car i used it on. Time-sert+plus some high temp heavy duty adheasive and that puppy went right in there first time. Cake. Other bolts or deep ones, i would likely use a helicoil tho.
 
So what keeps the Time-sert from backing out when you try to remove the bolt?
 
according to time sert, the insert also bites in at the end of the threading to lock it in there....
 
If you drive a Ford with 4.6 or 5.4 2 valve motor, a time sert kit can save you thousands of dollars when a sparkplug is blown out of the head.

If it's like my Big Sert kit it counterbores, reams, taps, driver inserts, and cold form the last few threads to lock the insert in place.

Awesome kits
 
I just bought a 8mm*1.25 time-sert set for my two exhaust threads. I will hopefully be able to time-sert the threads, put on the exhaust and tank. Then I will be all set to fire it up after many months of doing the top-end, cleaning, replacing, do-over's and cursing my head off. My mechanic was there to guide me, but I did all the work and many long hours myself. Hopefully in the end it will be worth it, plus pics when I'm finished.:-D
 
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