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coolant burping


JWX
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I thought about something(I know bad things happen when I think) but could you drill a hole in the thermostat, tap it and put a bolt or something in there to burp the system I mean it is higher than anything else right?

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Or how about changing the thermostat cover to one that has a radiator cap in it? I've got one like that on my hatchback. It came off a fuel injected RX7 and the bolt pattern etc matches the Subaru perfectly. There's probably other cars out there using similar 'stat housings but the mazda is the first one I noticed that served my purposes.

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I have drilled and tapped the T-stat housing on other makes to install an additional temp gauge. Not much meat there, so you have to be careful in doing so. Think your idea is a good one, but would use a pipe plug instead of a bolt. Better seal at threads that way.

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