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Beth Mann
Visitor
| | Posted on Thursday, July 25, 2013 - 09:40 am: | 
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I need to get a new thermostat for my sabb diesel 2JRG marine engine and can't seem to find one anywhere in and around Victoria bc. I'm wondering if anyone knows where I could find a thermostat for my sabb |
jimdereynier
Senior Member
Username: jimdereynier
Post Number: 83
Registered: 08-2007
| | Posted on Thursday, July 25, 2013 - 10:40 am: |
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I am not sure what automotive parts stores are available in Beautiful Victoria. I have a NAPA thermostat in my Sabb 2 H. You are looking for one with a 55-65C rating. Take the old thermostat ( first test it in a pan of hot water) to the parts store. The OD of the flange is critical. Measure the seating area for the thermostat ring- this will give you acceptable tolerance.
If you do not have the thermostat, buy the OEM one from Sabb America , Bill Miller, (352) 589-2882, Leesburg, FL 34788, |
bad
New member
Username: bad
Post Number: 2
Registered: 06-2012
| | Posted on Thursday, July 25, 2013 - 11:25 am: |
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I had little luck trying to find a non-oem thermostat in that temp range. It is very low. After giving it some thought, I also am not sure how critical it is that the stat opens at that low of a temp - basically it means that at 55C/133F it is fully open and the engine operating temp is 100% affected by the cooling/ sea water temperature. The Sabb runs pretty cool, and if the thermostat opens a bit later it should have litte influence on the final operating temp. For example, my engine seems to be stable operating at 160F with a water temp of 56F. Thermostat is wide open, and if it were to open at a slightly higher setting, the final running temperature should not be different.
If your thermostat is the same as for the H2 Sabb (the engine Jim and I have), (part no. 945.001) what I think you also need to look for besides the OD as Jim correctly pointed out, is that it opens in the same manner. The thermostat on the 2H extends downward as it opens and when fully open, limits or stops the coolant flow through the bypass. In other words, on some thermostats the piston lifts, on others it lowers as the thermostat opens. The H2 uses latter, because by blocking the flow to the bypass, all the coolant goes through the heat exchanger.
I ran my engine without a thermostat for a while, which allowed the coolant to flow through the bypass the heat exchanger. The engine took longer to get to temp and ran hotter - something like 180F. Still acceptable.
Hope this helps. Then again, it is free advice ;)
Erik |
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