That does make it more interesting

Some one gave me some ideas on were some other blockages may be. We will look a little more into it next weekend.

Jon

check power steering cooler.

i run no t-stats and run just shy of 150 degrees. what i think with my set up, and possibly other set ups, running no t-stat is just negating another issue. my t-stat housings are pretty corroded, so it could be not enough water get through to cool with a t-stat installed, thus taking out the t-stat lets more water through, and cools it....

or i was thinking maybe my t-stat housings are fine, and i should run a t-stat, but the little hole in the transom assembly where the water is picked up through the drive and and brought through the transom could be closing up due to corrosion, so maybe by taking out t-stat i am fixing that problem. WHO KNOWS!!??? its a boat