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Broken butterfly screw


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#1 tsi_tom

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Posted 30 March 2016 - 05:44 PM

The first time I tried to change the throttle shaft seals I followed instructions to use a drill to get the screws in the butterfly out.  Well the drill didn't slip it just crushed the metal and then stripped.

You need to grind the staking away from the butterfly screws carefully with a Dremel.

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Stripped screw

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Drill bit and tap I used.  Thankfully the screw came loose.


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Edited by tsi_tom, 31 March 2016 - 02:26 PM.

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#2 techboy

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Posted 30 March 2016 - 08:38 PM

Nice work Tom.  

I know when I put the butterfly screws back in on my Eclipse TB after rebuild, instead of peening the back of the screws over I just used some locktite to keep them in there.  I know you gotta be extra careful with those things though, last thing you wanna do is have a screw coming loose and sucked down into the head.
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#3 kev

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Posted 31 March 2016 - 01:43 PM

Have any info on the replacement screws and how you peened the threads?     Would love to move this thread to the FAQ section.


Kevin

#4 tsi_tom

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Posted 31 March 2016 - 02:29 PM

 kev, on 31 March 2016 - 01:43 PM, said:

Have any info on the replacement screws and how you peened the threads? Would love to move this thread to the FAQ section.


Kevin

That is a good question.  There seems to be options for the butterfly screws that I saw on a Eclipse forum but I got some spares from Brian at LSP.  For peening  I used a punch.

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I also used red Locktite.

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Feel free to move it to the FAQ is you like.

Edited by tsi_tom, 31 March 2016 - 02:35 PM.

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Stock injection system

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#5 psu_Crash

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Posted 01 April 2016 - 11:16 AM

Looks like a good time had by all! Nice recovery Tom!
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