boatnik821
Recruit
- Joined
- May 5, 2013
- Messages
- 2
I just bought a 1997 21ft Regal with a 4.3 Liter Volvo Penta sterndrive. At idle in the water the temperature gauge reads about 120. At about 1500 rpm it stays about 150. Once the boat is on a plane the temperature slowly rises (about 5 minutes of running) to about 190. Drop back to a high idle and the temp drops back to 150. Right before I bought the boat the exaust manifolds & risers had been replaced. There seems to be plenty of water coming out when on the trailer with the muffs on. The temp under those conditions is a constant 150. I plan to replace the raw water impeller & thermostat. Any other thins I should look at.