Doc
Guru
- Joined
- Oct 5, 2007
- Messages
- 508
I have recently noticed a 2 degree increase in the operating temperature of my 2000 model Cummins 330 hp engine. This increase coincides with the Cummins Tech changing all my hoses and clamps, off boat cleaning of all heat exchangers and coolers, replacing the coolant circulating pump and the thermostat.
Impeller has 152 hours and it has been 711 hours since I did a minor rebuild on the Sherwood RW pump which was a new cam and wear plates. The pump itself which does not (as I type this ) leak has about 1200 hours.
I have owned this boat for 5.5 years and have added 1120 hours to the meter. Total time now is 2250. The bottom job is less than 60 days old.
The boat's operating temperature at the 1800 rpm cruising speed was always 188 degrees. Now it is 190 degrees and has been for three short cruises.
All that PM should have lowered the temperature I would think.
-- Edited by Doc on Sunday 5th of December 2010 11:45:05 AM
Impeller has 152 hours and it has been 711 hours since I did a minor rebuild on the Sherwood RW pump which was a new cam and wear plates. The pump itself which does not (as I type this ) leak has about 1200 hours.
I have owned this boat for 5.5 years and have added 1120 hours to the meter. Total time now is 2250. The bottom job is less than 60 days old.
The boat's operating temperature at the 1800 rpm cruising speed was always 188 degrees. Now it is 190 degrees and has been for three short cruises.
All that PM should have lowered the temperature I would think.
-- Edited by Doc on Sunday 5th of December 2010 11:45:05 AM