crazy question ....... would it be possible to blow an internal coolant seal / o-ring as a result of a mechanic do a cooling system pressure test ?

 

probably not.

 

What pressure did he test at?

RXDad

 

doubt it. test is done at about the same pressure as the engine is at when its running

 

If you are blowing coolant out the exhaust, then here's a thread on how I dealt with a very serious version of this problem. The product is called Alumaseal, has been used by a couple dozen forum members now, with great success.

https://www.rx7club.com/1st-gen-archive-71/engine-coolant-seal-repair-maybe-750774/



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cooling issue was with a friends car . He has found a wierd hose leak that was responsible for worries about a coolant seal going . the problem started by coincidence after a cooling pressure test.

thanks anyway