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Old 03-07-2019, 10:54 PM #16
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Quote:
Originally Posted by gaber6 View Post
All fixed!

There were a few issues.

1. Sub-par, generic waterpump gasket. The OEM has a metal, layered gasket with a bevel that mashes down to create the seal. The gasket that came with the pump had a flat layered gasket with rubber/plastic.

2. My torque on the 12mm bolts must not have been enough, or I didn't go back over the bolts enough times with the torque.

The failure was created from incorrectly torqued bolts alloweing the heat/steam pressure to push the rubber gasket material away from the mating surfaces.

I'm 41 and still learning lessons from saving $10 on a generic gasket and paying down the road.
Good outcome, and lesson learned on cheap parts. Can't beat the multi-layer steel gasket that Toyota/Aisin use, and torquing the bolts incrementally to spec in symmetric pattern as AuSeeker described...just a figure 8 from inner to outer bolts.
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