05-06-2009 | #1 |
Join Date: Feb 2006
Location: Iowa aka "one big cornfield"
Posts: 341
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Broke thermostat housing bolts
Yep! I done did it!! Was looking everything over getting ready for the trip to BG next week and spotted a little leak coming from around the thermostat...started draining it and I twisted off 2 of the 3 bolts. I haven't touched the 3rd one yet as I'm leaving it in(one of the mounting bracket bolts) so I can drill out and retap the broken ones first (surprisingly there is a clear shot to drill them) and with any luck #3 will come out. My question is.....what is the size of bolt....all I have to go by is the twisted off heads. I need to know diameter and pitch of the threads. Anyone ever don't this before, any helpful tips? Thanks!
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05-06-2009 | #2 |
Guest
Posts: n/a
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Re: Broke thermostat housing bolts
M8 x 1.25 x 35mm
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05-06-2009 | #3 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
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Re: Broke thermostat housing bolts
Center punch the bolt first & start drilling with a smaller bit first. It will stay centered better & drill easier...... 1/8 ~3/16 bit. Keep lubed with WD40 or similar stuff. Work up in bit size until you can get good engagement on the EZ out. If you dont get enough, can break the extractor off.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
05-07-2009 | #4 |
Join Date: Jan 2004
Location: Alex VA
Posts: 1,087
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Re: Broke thermostat housing bolts
I was thinking about the thermostat housing problem and looking the part over. seems like a little cnc billet part would be worthwhile here.
carter, you out there buddy???
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95 390 LPE ZR1 (505 rwhp) LSV = Lingenfelter Super Vette Twin Turbo 2003 Z06 (800 RWHP) |
05-07-2009 | #5 | |
Join Date: Aug 2006
Location: McLean, VA
Posts: 3,725
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Re: Broke thermostat housing bolts
Quote:
Old buddy of mine has a CNC machine and I can AutoCad it. |
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