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| Gray Marine 4-75 overheating |
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Message |
    
Tom Blythe
New member
Username: flx38century
Post Number: 1
Registered: 07-2019
| | Posted on Tuesday, August 27, 2019 - 02:56 pm: | 
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Recently purchased a 38 Century with a Gray marine 4-75 that overheats quickly. Also noted water in the oil when I changed it. What should I consider? Head gasket? Leaking from oil cooler? |
Jim Staib
Senior Member
Username: drrot
Post Number: 264
Registered: 09-2008
| | Posted on Tuesday, August 27, 2019 - 04:44 pm: |
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First check the water flow out the exhaust pipe. See how much flow and how hot it is. When you fire it up how long does it take to get water out the pipe? |
Tom Blythe
New member
Username: flx38century
Post Number: 2
Registered: 07-2019
| | Posted on Wednesday, August 28, 2019 - 08:35 pm: |
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Thx Jim, after 1/2 turn on the grease cup to prime the pump, some water does come out within 30 seconds. I haven�t owned it long enough to know how much should be coming out. The previous owner had a reinforced clear line on the water line before going into the exhaust to be sure water did flow. On my second trip out that line melted within 10 minutes. |
Jim Staib
Senior Member
Username: drrot
Post Number: 265
Registered: 09-2008
| | Posted on Thursday, August 29, 2019 - 07:41 pm: |
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Sounds like there was a water flow issue and the last owner knew it. Time to fix it right. |
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