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| Author |
Message |
    
Mike Schryer
Visitor
| | Posted on Wednesday, July 06, 2011 - 10:20 pm: | 
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I had fuel pump and carb rebuilt. motor ran after about 15 mins of cranking.now motor only runs when spraying ether.electrical seems fine.any suggestions. |
mike schryer
Visitor
| | Posted on Saturday, July 30, 2011 - 04:41 pm: |
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55 graymarine 100 6cyl. got motor running fine used it a couple of times. now oil pressure has dropped. idled at 20lbs.was holding about 40lbs. at 3200rpm. now struggles to hit 20 lbs. at full throttle.guage is fine even put pressure guage directly on block.any suggestions.thanks mike |
Jim Staib
Senior Member
Username: drrot
Post Number: 97
Registered: 09-2008
| | Posted on Sunday, July 31, 2011 - 07:11 am: |
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Check the oil level. Look at the oil for metal particles. Change oil to a good straight weight oil. |
Bruce Hall
Senior Member
Username: bruce
Post Number: 273
Registered: 07-2002
| | Posted on Sunday, July 31, 2011 - 10:16 am: |
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Gas in the oil? My mechanical fuel pump diaphragm cracked on my 6 cyl Gray 100 and allowed gas into the base diluting the oil-caused oil pressure to read low.I use straight 30 weight oil. |
mike schryer
Visitor
| | Posted on Saturday, August 06, 2011 - 04:10 pm: |
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55 graymarine 100 6cyl. oil is new.30wt. wolf head non-detergent. no gas in oil.this motor was not used for 25 yrs.boat has been in family for 42yrs.417hrs.on motor before using it this summer.possibly oil pump,Iwas told there is a spring in the oil pump that migkht have gone bad.any suggestions.thanks, mike |
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