Technical Articles

Technical Articles and Specifications

 
Search: Help

Blog RSS Link

Get Free Mercury Gen II Shift Cables
I don’t normally throw out a lot of advertisements on our blog page but this is a pretty good deal. Mercury is currently giving away free Throttle/Shift Cables with the purchase of a 4000 or 4500 Remote Control. http://tinyurl.com/25e6tjr

How to Select a Better Propeller
Topic: Gear Ratio and Propeller Pitch Selection Guide.   Question #1: How do I select the correct gear ratio and propeller combination when upgrading my current product? Response: There is no basic answer to this question while the reality is that nothing replaces having good data to review when making selections. No matter how much estimating and calculating [...]

Used Boat Sales
The latest report released by Soundings Trade shows that used boat “Brokerage” boat sales were down a little for July 2010 as compared with July 2009. Speaking for those of us here in the Mid-West, I suspect this is due to the lack of good, high quality used boats. With the new boat sales market still [...]

Installing Closed Cooling On An Old Engine
I’ve had at least 10 people ask me about this subject again this week. I’m not sure what’s triggered the rush on this subject again this week but thought I would go ahead and provide the link to where we addressed it again for those interested. The link on the website goes into detail regarding this topic [...]

When Will The New Boat Sales Market Recover?
The latest new boat sales data seems to indicate the same thing the new housing sales market did last week; people are still not willing to spend the extra money to purchase new versus used. Everything we can see points to the fact that investing into repairs of existing boats is very worthwhile since dealers are making [...]

You are Here: Skip Navigation LinksTechnical Help > Marine Cooling Systems > Premium versus Standard Cooling Systems Skip Navigation Links

Premium Systems
The main area of difference with a Premium System is that coolant is forced thru the exhaust manifolds before it passes through the heat exchanger thus it is referred to as a full flow system. With these type systems flow is maintained throughout the exhaust manifolds and engine block at all times and therefore potential "Hot Spots" are minimized. These systems utilize a dual acting type thermostat which regulates an internal bypass system such that even when the thermostat is in the closed position full flow is maintained through the engine.

Standard Systems
These system have bypass functionality integrated into the thermostat to allow a small amount of flow thru the thermostat in the closed position. Thus when the engine is cold the only flow thru the engine is what bypasses thru the thermostat bypass. This also prevents the exhaust manifolds from over-heating during engine warm up.

High Capacity
This term is used to describe particular design features such as 6 raw water passes, a tighter tube pitch meaning a higher number of cooling tubes, sealed dividers which means leakage is minimized. All of these features require a higher level of material and labor and therefore typically indicate a higher cost. This also typically indicated a heavier unti due to having more internal cooling material.