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  new motor Johnson on 18'

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Author Topic:   new motor Johnson on 18'
george nagy posted 07-19-2001 11:39 PM ET (US)   Profile for george nagy   Send Email to george nagy  
Well after much contemplation i'm finding myself on the eve of a possible engine purchase and am still sitting on the fence, probably the money!

Here is my quandry other than the $$$$$$$.

I have an 87 evinrude 150 and would like to exchange it with a 2001 johnson 150 (not FICHT)!

For those of you whom have done this recently I was wondering what was usable and what else I might need to do this job successfully. I know I need an oiltank, and some sort of wiring adaptor harness, but what else?

Any help would be greatly appreciated as usual of course!

p.s. please see my similar posting about prop selection.

Peter posted 07-20-2001 07:19 AM ET (US)     Profile for Peter  Send Email to Peter     
George,

Several years ago I contemplated doing the same thing. I never did it because my 1987 150 always ran like a top, but I figured some day that wouldn't be the case. My mechanic told me that the new 150 (60 degree block) would require new controls along with the wiring harness. Also, if you have hydraullic steering (quite likely with a 150), then I think you may need a different adaptor between the piston and the motor's steering arm.

LarrySherman posted 07-20-2001 07:43 AM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
Your dealer will proably tell you that you need a new steering cyclinder ($350), but if you call Teleflex, and aggange to send the cyclinder to them, they will put the correct adapter on your old cyclinder, as long as it can support it. Just went through this with them.
Marco Whalo posted 07-20-2001 02:46 PM ET (US)     Profile for Marco Whalo  Send Email to Marco Whalo     
George, Are you repowering becasue your engine is shot? I have 1990 Johnson 150GT (old cross flow technology, you may have this or loop charged) and I was thinking about doing the same thing but not after seeing what the new technology is like. Just curious. My engine runs great and has new spec compression.

Mark

johnk posted 07-20-2001 03:34 PM ET (US)     Profile for johnk  Send Email to johnk     
George,

I repowered my '86 Montauk / '86 90 hp Johnson with a new 2001 90 HP Johnson OceanPro.

For my application it was quite simple. There was an adaptor plug available to mate the existing wiring harness with the new motor. Steering bolted right up.

OMC (had) a large new combination tach/engine warning gauge that was available to monitore temp and oil. They also had a smaller gauge available for just the warning system. I actually didn't use either, but used the original warning buzzer that made I believe 4 destint tones or pulses for problems with temp/oil etc. OMC furnished a small sticker that mapped the tone with the problem, and I stuck that to the inside of the port console hatch.

All in all, I could not have been more pleased with the new motor..
good luck

jk

george nagy posted 07-20-2001 05:04 PM ET (US)     Profile for george nagy  Send Email to george nagy     
Well to answer your question my engine still runs, but it is quite corroded, and I have a cahnce to buy one at a reduced price. I like the 60degree johnson outboard technology, everything I have heard is good. I do think my prop may not be the right pich 15x17. Well I'm told that I have to get new rigging even throttle, I'm doubtful though. I have more investigating to do.
Peter posted 07-20-2001 05:27 PM ET (US)     Profile for Peter  Send Email to Peter     
When and if you do get new, that 15 x 17 will be too small of a wheel. The new 150s, assuming the gear ratios are the same as the old, will easily turn a 21 inch on an 18 Outrage.
maverick posted 07-21-2001 07:44 AM ET (US)     Profile for maverick  Send Email to maverick     
George...i refitted my 85 Outrage with new J150..non ficht...bought new 6.99 but engine was a 98 in the box...saved me a few bucks there...as far as cutting corners on steering...controls...etc as you are considering...Do it right the first time with good and new steering and new controls...etc. The boat is worth it and so is your safety. A few hundred bucks extra after a $7000 new motor buy is negligible and hardly worth the discussion.

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