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| Chrysler 318 over heating |
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Message |
    
bubbadebobo
New member
Username: bubbadebobo
Post Number: 1
Registered: 04-2009
| | Posted on Wednesday, April 22, 2009 - 03:14 pm: | 
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okay...heres the problem...1969 chrysler 318, raw water cooled, sherwood d60 dual impeller raw water pump. ran fine last year, winterized, then put back in water about a week ago. engine temperature went to 220+...rebuilt pump with new impellers, pulled manifold hose to check flow, then started engine...good flow...reinstalled manifold hose...restarted...temp went to 120 then steadily rose to 220+...pulled manifold hose again...restarted engine to check flow and all i got was steam. let cool, replace impellers again...filled engine block with water, restarted same way...with same results. NOW WHAT DO I DO??????!!!!!!!!!!! |
mrpos
Member
Username: mrpos
Post Number: 15
Registered: 06-2006
| | Posted on Wednesday, April 22, 2009 - 04:04 pm: |
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Could be a multiple of issues. Check thermostat. Check all hoses for flow. Check for flow coming OUT of your engine, including exhaust. Check for free flow through your exhaust risers. Check oil for any water infiltration. Pull your spark plugs and look for a wet cylinder. You could have a blown head gasket or cracked head. Pressure test cylinder/heads. Check exhaust manifolds for internal cracks. Good luck! |
mike flannagan
Visitor
| | Posted on Monday, July 21, 2014 - 08:52 pm: |
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I did all that and took the thermostat out and it still ran at 200+. Its a new motor new everything replaced hoses. nothing i try works. I have spent a lot of money replacing things to see if it would help. Nothing i have tryed has heiped at all.I have ran out of ideas please help |
mykim
New member
Username: mykim
Post Number: 1
Registered: 07-2014
| | Posted on Wednesday, July 30, 2014 - 05:13 pm: |
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Mike, try tying a garden hose directly into the raw water pump. f that solves the problem then it's a flow issue between the external water pick up on the hull and the pump. Also, have you smeared lithium grease on the impellor vanes and plate face? Pump could be caveating and loosing suction. |
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