Quote:
Originally Posted by hauss
Two more things, First I have a 42 tooth pulley so, it is big on the water pump. 2nd all hoses are mushy feeling to me, maybe normal for backdraftt. I do not know.I do have one question what are normal water pump rpms .
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If your lower rad hose feels soft or mushy there's a good chance it's collapsing at higher RPM. If you can squeeze it by hand enough that opposing sides can (or almost) touch each other that's almost a guaranty that it's collapsing. If it was doing that I'd replace it and ensure it has a spring inside to prevent that from happening.
Hint: I've salvaged a few stainless steel springs from rotor sprinkler heads (Rainbird) that have failed. Those springs are a great fit in a radiator hose.