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At this rate, the only thing running wide open is my wallet with all these new parts. Maybe I’ll just slap some racing stripes on the cowling and call it even 😂
**Update:**
Installed a new water pressure gauge—shows 0 PSI at idle and only up to 8 PSI when revved. Tach still not working. Changed the impeller 3 times (all aftermarket from Amazon). Planning to try an OEM Mercury impeller next.
Thanks for the info and your opinion, really helpful. I’m going to swap out the pressure gauge next, and I’m currently waiting on the divider plate gasket to arrive. Once I get everything installed and tested, I’ll report back with the results. Appreciate your input!
thanks for reply
I've already replaced the impeller and poppet valve kit, but i'm still getting the exact same symptoms. right now, i'm installing a new water pressure gauge to help diagnose the problem.
for those with experience, how do you interpret the readings from the water pressure gauge...
Hi all,
I’m looking for some advice on a persistent overheating issue with my Mariner 150hp 2.5L outboard (serial 0B384105). Here’s what’s been happening and what I’ve done so far:
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**Symptoms:**
- Motor idles fine and “pees” strong from the telltale until it reaches normal temp.
- Once...
