Wet Test

[reelapeelin]

Originally Posted by THEFERMANATOR

If this is a early looper, the T-stats are out of the picture above 3000 RPM's. They are only supposed to be active at slow speeds, and the water diverter valve(black plastic valve atatched to the throttle linkage with 3 hoses) allows the t-stats to be bypassed. If it is a 93+ looper then most likely it is the t-stat springs or a weak pump. If it's a cross-flow also check the impeller or bypass's.

Wow...thanks Ferm!!...'89 looper and never got it past 3 grand, so you may be on to something...plus the diverter valve you mentioned has a small, steady leak and I don't know if that's a possible culprit here or not...the pisser stops pissin', but if you disconnect the back tube from the diverter that goes to the starboard t'stat(plenty of water coming outta there) and then reconnect it, then it starts pissin' again...
IF the t'stats are faulty, could they be closing at the wrong time and shutting the flow off?...Spare put a new water pump on just after we hung it on the boat, so confident no issues there...
Thanks for your thoughts...