09-05-2025, 05:50 PM
If the hissing sound is near to where the top water outlet is check the hose clips. A small water leak dripping from hose onto a warm head will make this noise as it boils and evaporates . The head is the first part of the engine to warm up.
John Mason.
John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.