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#1
12-29-2010, 10:55 AM
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johnson commercial 155
has anyone ever had any experiences, good or bad, with these motors? the guy said he just had it rebuilt and hasnt even broken it in yet. would this be too much for my 78 18ft? this might be a deal i cant pass up, but dont want a motor with alot of headaches.
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#2
12-29-2010, 11:57 PM
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Re: johnson commercial 155
What year? With or without the VRO system?
__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes. Fr. Frank says: Jesus liked fishing, too. He even walked on water to get to the boat! Currently without a SeaCraft  (2) Pompano 12' fishing kayaks '73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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#3
12-30-2010, 01:25 AM
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Re: johnson commercial 155
Low compression motor, they run on the worst of fuel. I forget the octane they can run on. Good smokey old motor, they were the predominant motor on the back of towboats for years. 155 I think was basically a 185, bigger lower, couple other things.
__________________
Thank goodness that in the scheme of things you are broke, powerlesss and inconsequential, because with the shortsighted alternatives and idealogy you have you'd be much worse than those you complain about.
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#4
12-30-2010, 03:59 PM
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Re: johnson commercial 155
89 motor. the guy said the VRO was disabled, if it isnt and i get it, i will disable it and mix my gas. do you think this wee be too much weight for my 18? i looked it up on NADA, says it weight 400 lbs. being a low comression motor, what #s do i need to look for on a comp gauge?
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#5
12-30-2010, 07:13 PM
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Re: johnson commercial 155
I just sold a boat with a 1989 150hp Johnson "cross-fire" motor (not a looper). I've had four of these type engines and they never broke, just wore out. I thought the 88hp, 155hp commercial marketed motors were mix your oil only type engines. That way, no worry of VRO failures.
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#7
12-31-2010, 11:40 AM
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Re: johnson commercial 155
Quote:
also,"low compression engines" ? it's a 2 stroke,the compession ,ratio is much less than a 4 stroke engine...that comment concerning "it's a low compression engine",it's incorrect...
__________________
do not let common sense get in your way
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#8
12-31-2010, 01:30 PM
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Re: johnson commercial 155
They don't run a different cylinder head on those than other crossflows?
__________________
Thank goodness that in the scheme of things you are broke, powerlesss and inconsequential, because with the shortsighted alternatives and idealogy you have you'd be much worse than those you complain about.
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#9
01-01-2011, 02:35 PM
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Re: johnson commercial 155
Quote:
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#10
12-30-2010, 11:24 PM
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Re: johnson commercial 155
a 155 cant say i ever recall seeing one
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