anypromo180
03.05.2021 20:31:16
Overheating is a problem which can be diagnosed through a process of elimination. The best way to tackle such a problem is to first consider the obvious.
See full version: Mercury marine 454 optimal running temperaturre
Overheating is a problem which can be diagnosed through a process of elimination. The best way to tackle such a problem is to first consider the obvious.
Symtoms of a Bad Water Pump [links]
The water pump might be fine but it's a good place to start. The pump should be replaced each season. If you are overheating and you haven't replaced the pump for a while, do it. Replacing the pump will "kill two birds with one stone". Not only could it correct the entire problem but it will also get some scheduled maintenance out of the way. Even if it doesnt correct the problem at least you can rule it out as being suspect. here
Raw Water Pumps here
Thermostats more
Heat Exchangers [links]
3. Overheating – These types of problems can be more difficult to identify but in many cases related to a malfunctioning thermostat. Verify that the thermostat functions properly by inserting the thermostat into a pot of boiling water. Most thermostats will have the opening temperature stamped somewhere on the part, and should reach full stroke at approximately 20 degrees above the opening temperature. Thermostats are not repairable and should be replaced with the manufacturers specified part as these are system specific components. here
Step #3: Replace the Sea Water Pump Impeller (Watch “How To” Video) [links]
I grew up in Fond du Lac, WI. My dad retired from Mercury Marine foundry a few years back.
15 years ago I was fortunate to see both the High Performance shop and the dyno labs. Seriously crazy sh!t in there.
I can tell you that there are a few very fast cars in the area that have black big blocks in 'em, and they are very, very fast ;D
So, yeah. they can be easily installed in a passanger car ;) more
BS'er formally known as Rebeldryver [links]
The open cooling system engines have no pressure to speak of to keep down localized boiling - so they run low temp thermostats around 160 usually - a "sea pump" pulls water out of the lake - pushes it to a manifold that distributes it full time to the water jacketed exhaust and only when the thermostat is open to the rest of the engine. All of the water exits through the exhuast. So you basically have an endless supply of low temperature water to pull from.
Marc is right, higher nickle content to help fight off corrosion from salt water, other than that, car/truck vs marine blocks are identical. The internals may be different for a boat application, but a lot of trucks were different from pass cars. I did a 305 sbc (Mercruiser) for a friend a few years ago, and that's what I found out on marine vs pass blocks. [links]
As stated - marine engines are pretty hard core - but they have one easy out - unlimited cooling capacity! here
wtf this great ebook for free?! more
so many fake sites. this is the first one which worked! Many thanks [links]
Finally I get this ebook, thanks for all these Mercruiser 454 Engine Temp Sender I can get now!
It's very easy to get quality ebooks ;) [links]