Boat
1984 150, is 90 psi ok on very cylinder, and on a 200 evinrude, is 90 psi, these were checked with all plugs out
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1984 johnson 150, is 90 psi ok on very cylinder, and on a 200 evinrude, is 90 psi, these were checked with all plugs out
Answered by oldnewenglandmarine in 32 mins 9 years ago
oldnewenglandmarine
Auto Mechanic
34,336 satisfied customers
Specialities include: Marine mechanic, Diesel Engine Repairs, Boat Body Repairs, Boat and Watercraft Repairs
Hello, my name is XXXXX XXXXX I will be helping you today. Thats fine on that engine. Those older Johnson/Evinrudes were not the highest compression engines even when new. When new it was more like 110 psi, and I've seen those run well with compression as low as 75 psi in each hole. So at 90 psi, thats an enging thats about 1/2 way through it's life.
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That should do it, but I do want to make sure you are happy with me and my answers before doing the rating. If you have a further question on this, by all means feel free to fire away. If not, please let me know if the ratings box gives you any troubles.
Thanks in advance, and good luck!
Jason
Customer
thanks for the info,
Your very welcome Randy, and thank you.
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