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Old Feb 4, 2013 | 07:50 AM
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Default Water Pump Bolt

What size is the bolt the secures the thermostat housing on the LS1 water pump? There are two (2) of them and I stripped one of them and need to heli-coil it.

What size heli-coil does it take?

Cheers!

Chad

Last edited by ss4chad; Feb 4, 2013 at 07:51 AM. Reason: Typo
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Old Feb 4, 2013 | 12:06 PM
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M6 x 1 x 25-10mm soc
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Old Feb 7, 2013 | 02:52 PM
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Thanks man, is this the right Heli Coil kit to repair it?

http://www.helicoilchart.com/helicoi...r-kits-metric/

Chad
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Old Feb 7, 2013 | 05:06 PM
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Originally Posted by ss4chad
Thanks man, is this the right Heli Coil kit to repair it?

http://www.helicoilchart.com/helicoi...r-kits-metric/

Chad
That's it... It would be better if you remove the pump and do it on the work-bench. If the pump is old, you can just replace it and that will fix all your problems. The thermostat/water pump inlet bolt torque is 15 N·m (11 lb ft).
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Old Feb 8, 2013 | 06:53 AM
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The pump is used but I rebuilt it, its a Meziere electric pump and I replaced the o-rings and had it painted, I also sent the motor back to Maeziere for a free motor/pump evaluation. It's installed on the motor but luckily the stripped bolt is on the top / outboard side so I can get to it fairly easy.

Thanks for the help bro!

Chad
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