| Author |
Message |
    
adam trouten
Member
Username: runabout650
Post Number: 5
Registered: 06-2009
| | Posted on Tuesday, June 30, 2009 - 11:12 am: | 
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i have a 1974 merc 650 3 cylinder and theres a strong burnt smell in my distributor and it won't spark and i have a guy that said he would give me a distributor from a 1974 merc 850 but its a 4 cylinder he said they look like they're the same size would i beable to put my cap (if it fits) on the one for the 85 hp and make it work to feed 3 cylinders or would it cause more problems in the long run? |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6166
Registered: 09-2003
| | Posted on Tuesday, June 30, 2009 - 01:28 pm: |
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Correct. You can you do it by removing the 4 banger distributor shaft and replacing it with your 3 cylinder item. DO not try to pry the rotor off for it's bonded on!
Jeff
PS: The optical sensor in your distributor is fried. |
Pat Dickson
New member
Username: 69merc
Post Number: 1
Registered: 07-2009
| | Posted on Thursday, July 09, 2009 - 02:36 pm: |
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I have a 69 merc 1250 inline w/a thunderbolt ignition. My problem is that I only get spark when the key is just turned and released. Has anyone ever had this problem? If so what is the solution to solve. Thank you. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6228
Registered: 09-2003
| | Posted on Thursday, July 09, 2009 - 05:49 pm: |
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Bad ignition switch.
Jeff |
Pat Dickson
New member
Username: 69merc
Post Number: 2
Registered: 07-2009
| | Posted on Thursday, July 09, 2009 - 06:40 pm: |
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Jeff thanks for a quick feed back . It still does the same thing with a remote start switch .
so would it be ignition switch. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6231
Registered: 09-2003
| | Posted on Thursday, July 09, 2009 - 07:17 pm: |
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Possibly.
Jeff |
Pat Dickson
New member
Username: 69merc
Post Number: 3
Registered: 07-2009
| | Posted on Friday, July 10, 2009 - 08:45 am: |
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Jeff is there a way to test the switch wiyh out pulling it??? |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6237
Registered: 09-2003
| | Posted on Friday, July 10, 2009 - 10:09 am: |
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Yeah. You could disconnect the wires and jumper the ignition ON circuit.
Jeff |
Pat Dickson
Member
Username: 69merc
Post Number: 4
Registered: 07-2009
| | Posted on Friday, July 10, 2009 - 10:14 am: |
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sounds likea plan i will try it and let you know what comes of it.
thanks for all your help!! |
adam trouten
Member
Username: runabout650
Post Number: 6
Registered: 06-2009
| | Posted on Friday, July 10, 2009 - 04:17 pm: |
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ok i replaced the distributor and coil on my 1974 merc 650 and still no spark coming from the coil when the old distributor burned up could it have fried something else? |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6246
Registered: 09-2003
| | Posted on Friday, July 10, 2009 - 05:24 pm: |
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Unfortunately, yes: the sparkbox. There's one on eBay at the moment.
Jeff |
