Often asked: How Do You Get To The Thermostat On A Chevy 454 In A Motorhome?

Where is the engine thermostat located?

Most cars have a top-mounted thermostat located close to the water pump on the cylinder head. The top radiator hose feeds coolant through the thermostat into the engine. If you can’t locate the thermostat, simply follow the hose until you see the housing containing the thermostat where the hose joins the engine.

What causes a 454 to overheat?

The head gasket, which separates the cylinder head from the engine block, prevents the leakage of engine coolant into the cylinders and crankcase. If the head gasket of the 454 engine breaks or cracks, overheating can quickly occur.

What temperature should my 454 run?

If the engine is creeping too much above the 190-200 degree range, it’s probably running hot. Personally I like to see it in the 185 to 190 range. In some cases short instances of higher temp is not going to damage the engine but prolonged overheating can do serious damage.

Which way does the thermostat go in the thermostat housing?

In most cars the thermostat is placed under a housing near the water pump on the cylinder head; the housing is connected directly to the top radiator hose. In a few cars the thermostat is housed near the bottom hose. Test the thermostat quickly by starting the engine from cold.

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What happens if you run a car without a thermostat?

If you drive your car without a thermostat, it will run at 50 degree centigrade. When the car drives at this temperature, moisture or humidity will form. And when it is condensed, it will mix with oil and turn into slush (watery ice). This slush blocks out lubrication.

How do you cool down a big block Chevy?

Premium Member. A stock brass HD radiator,water pump and fan will easily keep a mild big block below 200 degrees under normal circumstances. Brass is a better thermal conductor than aluminum. It just doesn’t look as cool and is heavier.

What size thermostat do I need for a 454?

Your 210~220 with a 195 thermostat is expected.

What temperature should my engine coolant be?

Normal Temperature engine temperature gauge Most experts agree that your engine should run between 195 degrees and 220 degrees. In ideal situations, your needle will maintain a posture right in the middle of your gauge.

What temperature should a big block Chevy be?

The owners manual says 210 is normal. On hot days 90 degrees or hotter my car would go to 220 or 230. I put a high flow water pump and 190 high flow themostat.

What happens if you put a thermostat in backwards?

If you installed the thermostat backwards, it would probably not open up enough to allow coolant to flow, and the temp gauge would shoot up into the far right range, the engine would overheat, etc.

Can you change a thermostat without draining the coolant?

No, the thermostat cannot be changed without draining the radiator.

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Why is my thermostat leaking?

Coolant will also leak out of the system once the housing is cracked, warped, or damaged in any way. A failed or worn seal may also cause a similar issue. Your engine may overheat if your thermostat housing keeps on leaking, so it’s best to address this issue right away.

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