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Jeep Wrangler YJ
YJ General Discussion
My 93 Restoration Project
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<blockquote data-quote="machoheadgames" data-source="post: 427588" data-attributes="member: 18789"><p>As stated, thermostat sets the minimum temp, radiator and rest of cooling system sets the maximum temp. The 195° is proper. Mopar thermostats for the YJ aren’t truly from Mopar anymore so my typical default thermostat is the Stant Superstat 195°. I’d recommend going with something similar and of course, not the fail safe version.</p><p></p><p>As for burping, the system burps itself. A warm up cycle pushes air out as it warms up and when it cools down, the system will suck up coolant back from the reservoir. Keep coolant in the reservoir and do a few warm up-cool down cycles and it’ll naturally purge the air itself. Or, you can speed the process up by using a universal funnel kit and letting the Jeep warm up. The air will bubble out and replace itself with coolant.</p><p></p><p>Considering how much you flushed it, if you install a proper thermostat and make sure it’s all burped, I think you’ll be ok. 210° is certainly normal and where you want to be. If it goes much past that, maybe look into a fan clutch or a water pump swap.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 427588, member: 18789"] As stated, thermostat sets the minimum temp, radiator and rest of cooling system sets the maximum temp. The 195° is proper. Mopar thermostats for the YJ aren’t truly from Mopar anymore so my typical default thermostat is the Stant Superstat 195°. I’d recommend going with something similar and of course, not the fail safe version. As for burping, the system burps itself. A warm up cycle pushes air out as it warms up and when it cools down, the system will suck up coolant back from the reservoir. Keep coolant in the reservoir and do a few warm up-cool down cycles and it’ll naturally purge the air itself. Or, you can speed the process up by using a universal funnel kit and letting the Jeep warm up. The air will bubble out and replace itself with coolant. Considering how much you flushed it, if you install a proper thermostat and make sure it’s all burped, I think you’ll be ok. 210° is certainly normal and where you want to be. If it goes much past that, maybe look into a fan clutch or a water pump swap. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
My 93 Restoration Project
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