Cat 1lw temperature issues, (?)

Cat 1LW, few weeks a go my temp started climbing, even with fan on, empty or loaded will reach 210 and stayed there and had to keep an eye on it, while many including Caterpillar say this temp is fine I say that's to close for comfort, from 210 to failure is only a matter of minutes, well one time I took my eyes away from my gauge and I guess was a little tired and drove like I normally do starting with a load and by the time I saw the temp, it was at 220, I'm talking just taking off from a stop light to about a half mile, was 220 too much? because now there's bubble in the radiator vent with a battle of water. I since have change the thermostats and that took care or the situation, 1LW stays at 180 and climb to 190 when I push it taking of from 0 mph to see how hot it gets, thermostat are doing exactly what the salesman at Caterpillar told me it will do. But my question still there 220 was enough to mess up a head gasket or something else? how log do I have before tearing apart? this answer to me will be I will try to buy some time and try to do it in the slow season (summer) or when it needs to.

 

I have a 5DS 600 B/S program, also I rebuilt it in June 2017 with around 120k miles since, what about the bubbles in the water bottle?
I'm sick and can't do anything with it at this time, but hopefully in about a week or two I will. Thank you for replying.

 

Thank you guys, Dave, I love Hisperia and Victorville, it used to be quiet and nice when I was there, 1991 and 1992. used to hate most of LA area.

 

Had to come back and finish this thread.

Monday went an checked all the fluids to go to work, up on inspection found some coolant dripping from the little hose between water pump and thermostat housing, turn out the hose clamps were not tight enough specially the bottom one, could move it around with my finger tip, picked up a flat screw driver tighten them and no more dripping, Today after few hours of driving I put the bottle of water on the rad vent and what a relieve, no bubbles, it appeared that while the engine was running the water would create an air vacuum from the not so tight hose, hence the bubbles. I'm posting this to help future operators with this kind of worries, hope it helps.