| Author |
Message |
    
Joseph Cram
Member
Username: ladycram
Post Number: 4
Registered: 10-2009
| | Posted on Sunday, November 01, 2009 - 09:22 pm: | 
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I am looking at buying a 1978 Johnson 70hp motor and controls for $500. The top end has no problems but bottom end has a shifting problem. If you adjust to go easily into reverse it is hard to go into foward. If adjust for foward hard to get into reverse.Is the motor worth $500 and what is most likly problem with trans. Thanks |
Logan D
Member
Username: omc_10
Post Number: 29
Registered: 11-2008
| | Posted on Sunday, November 01, 2009 - 10:06 pm: |
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The trans lol!? (Transmission) never heard of one of those on a outboard engine. |
Joseph Cram
Member
Username: ladycram
Post Number: 5
Registered: 10-2009
| | Posted on Sunday, November 01, 2009 - 10:27 pm: |
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I am sorry I do not not know the technical terms .I heard it called the foot or leg , the gear box at the bottom of the motor where the prop is. I am willing to be educated. I would appreciate any help ,thanks |
jwbmarine
Senior Member
Username: jwbmarine
Post Number: 5080
Registered: 11-2005
| | Posted on Monday, November 02, 2009 - 07:27 pm: |
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that would be ,..the lower unit,...the 'most likely' prob,..is a bad forward gear and cluth dog!.....see if u can shift it into gear,..solidly,wthe shift cable disconnected..shift it at the engine..wks ok ,then u have a control box prob!.or bad cabl;es... |
Joseph Cram
Member
Username: ladycram
Post Number: 7
Registered: 10-2009
| | Posted on Monday, November 02, 2009 - 10:08 pm: |
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thanks for your help!! I will try it. I was told a mid 1970,s 40hp Johnson lower unit would fit a 1978 70 hp Johnson motor. Is this true? would appreciate any words of wisdom |
jwbmarine
Senior Member
Username: jwbmarine
Post Number: 5086
Registered: 11-2005
| | Posted on Tuesday, November 03, 2009 - 04:27 pm: |
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seeing my above post,...i CAN spell,..i just,cant TYPE...the 40 LU will not wk ... |
Joseph Cram
Member
Username: ladycram
Post Number: 8
Registered: 10-2009
| | Posted on Wednesday, November 04, 2009 - 08:41 am: |
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thanks for your help again. ordered a book so it should help answer some of my questions. as for spelling not required for a mechanic. no one spells gooder them me |
Joseph Cram
Member
Username: ladycram
Post Number: 9
Registered: 10-2009
| | Posted on Thursday, November 05, 2009 - 08:28 am: |
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is there a good place on line were I could buy a used throttle control for a 70hp Jhonson. thanks for any info!!! |
Jack Sprat
Member
Username: jack_sprat
Post Number: 8
Registered: 10-2009
| | Posted on Thursday, November 05, 2009 - 07:46 pm: |
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LOL I always said if I could spell I would not be a mechanic STILL LOL SORRY.. |
Jack Sprat
Member
Username: jack_sprat
Post Number: 9
Registered: 10-2009
| | Posted on Thursday, November 05, 2009 - 07:53 pm: |
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AS for Transmission in my trade it is anything that takes power from the engine/motor and takes it to the work. |
jwbmarine
Senior Member
Username: jwbmarine
Post Number: 5094
Registered: 11-2005
| | Posted on Thursday, November 05, 2009 - 08:07 pm: |
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joseph,..i would look on ebay.com..new ones,r pricey,..but last for yrs,and yrs... |
Joseph Cram
Member
Username: ladycram
Post Number: 10
Registered: 10-2009
| | Posted on Thursday, November 05, 2009 - 11:17 pm: |
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bought i am told, 1980 55hp Johnson with electric shift.bought it to play with, going to take it apart to see how it works but wanted to try and start it first but wiring harness is missing. not going to pay $100 for harness. I need a wiring diagram . numbers on tag on motor are TRL 10R second number is 2991497 Is there somewere on line I can get diagram .Thanks for any and all help!!! |
jamie campbell
Advanced Member
Username: outboard_doctor
Post Number: 713
Registered: 02-2009
| | Posted on Friday, November 06, 2009 - 12:18 am: |
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Something to try befor stripping down the gearbox
Disconect the gear cable at the engine end...start the engine and move the gear lever at the engine into forward and reverse if you get both gears i would say you have excessive lost motion in the control box. |
