Author Topic: Help!! Heli coil insert tap and installing tool problems  (Read 180 times)

Offline Mr.Pontiac

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Help!! Heli coil insert tap and installing tool problems
« on: September 30, 2019, 04:53:41 PM »
I recantly bought a special 7/8-20 SFI tap .940 o.d. size for the 7/8-20 heli coils, after installing tool into fuel inlet area it bottoms out to bottom of carb. to hold heli coil insert.,Groove is approx. 3/4 deep. am i using wrong insert tool?? advice please.

Offline Cliff Ruggles

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #1 on: October 01, 2019, 03:47:38 AM »
Did you purchase a genuine Heli-Coil brand kit, or something else?....

Offline Mr.Pontiac

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #2 on: October 01, 2019, 07:03:02 AM »
Heli coils themselves are a brand kit of 5 in a package, Tap was purchased with advice from Heli coil themselves.

Offline tayto

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #3 on: October 01, 2019, 12:04:19 PM »
I've taken taps to the belt sander in order to get threads "deeper" I would guess your Heilcoil tap was not cheap though.

Offline Cliff Ruggles

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #4 on: October 02, 2019, 05:15:23 AM »
So it's not a genuine Heli-Coil tap?

Offline Kenth

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #5 on: October 03, 2019, 10:53:29 AM »
The tap in my Heli-Coil kit is "bottom style", no issues.

Offline Cliff Ruggles

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Re: Help!! Heli coil insert tap and installing tool problems
« Reply #6 on: October 04, 2019, 11:25:47 AM »
There is a company that offers the both the 7/8"-20 and 1"-20 taps, pretty sure they are called "Recoil".

Those taps will not work well if at all.  I bought one for 1"-20 threads and it was useless.  Had to source out a genuine Heli-Coil tap and it works fine.....FWIW.....Cliff