Katemma Life
Member
- Oct 7, 2018
- 135
- Boat Info
- 2007 sea ray 290 SLX
- Engines
- Twin mercruiser MAG 350 MPI w/ Bravo III
Hi,
I have twin Mercruiser 350 MAG MPI's and am curious to know... when does the Tstat close?
Scenario: I'm winterizing my engine and am running one of the engines on the garden hose until temp reaches 150 degrees. Now I shut off engine, switch the garden hose over to the antifreeze bucket, open the valve on the bucket and turn on the engine. The engine was only off for 2 minutes but... does the Tstat close and then need time to re-open or does it stay open allowing the AF into the engine right on start up - the engine temp never drops below 145 during the transfer..
thanks!
I have twin Mercruiser 350 MAG MPI's and am curious to know... when does the Tstat close?
Scenario: I'm winterizing my engine and am running one of the engines on the garden hose until temp reaches 150 degrees. Now I shut off engine, switch the garden hose over to the antifreeze bucket, open the valve on the bucket and turn on the engine. The engine was only off for 2 minutes but... does the Tstat close and then need time to re-open or does it stay open allowing the AF into the engine right on start up - the engine temp never drops below 145 during the transfer..
thanks!