Running hot
09-12-2019 | 09:17 AM
#1
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From: Marco Island, FL
Running hot
mercruiser 8.1 getting EMCT warning both manifolds. Due to Stainless Marine suggestion the hose between oil cooler and manifolds were deleted. Is this enough to cause low flow and overheat. Pumps all new, water pressure 15 psi at 3000rpm.
09-12-2019 | 09:40 AM
#2
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From: KY
Could use a serial number?
Your a little low on pressure
Get a piece of clear hose at the hardware store, double barbed fitting and couple clamps. Install the hose at the inlet side of the HX and take it for a run and look for bubbles. If there is bubbles you have an air leak
water pressure 15 psi at 3000rpm
Get a piece of clear hose at the hardware store, double barbed fitting and couple clamps. Install the hose at the inlet side of the HX and take it for a run and look for bubbles. If there is bubbles you have an air leak
09-12-2019 | 10:15 AM
#4
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From: KY
Both engines running same 15 psi,
Its either the cooling water system or the sensors. Figure your codes are 160 and 179
Could use an IR temp gun and compare temps at the sensor locations
Codes may be incorrect because you didn't say if your getting a constant alarm
Last edited by AllDodge; 09-12-2019 at 10:19 AM.
09-12-2019 | 12:07 PM
#8
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From: Marco Island, FL
Just to clear hoses # 6 and # 14 leaving only main supply line for water to the exhaust manifolds on starboard engine, the one running hot. Port engine has original hoses and connections running normal. Starboard engine at idle was running and risers were just warm to the touch. Engines temps are balanced and normal.
