Boat
I am looking at a boat with a 1996 200 evinrude. I am going to do a compression test on it. what numbers should i be
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Customer: I am looking at a boat with a 1996 200 evinrude. I am going to do a compression test on it. what numbers should i be looking for? I s this engine a looper? and do loopr have lower compression? How can I tell if it is a looper
Answered by Master Tech in 33 mins 13 years ago
Master Tech
30+ years of experience
732 satisfied customers
Specialities include: Marine mechanic, Diesel Engine Repairs, Boat Body Repairs, Boat and Watercraft Repairs
You should have 85 to 90 psi on all 6 cyls. The important thing is that they are all within about 5 psi of each other.
This is a Loop charged engine. The ports in the pistons and cyls create a looped intake charge and exhaust scavenge thus the term "Looper"
They can be identfied by their flat topped pistons.
Customer
So they should not be over 100 PSI. 85 to 90 is that what they are when new? or are you taking into hand how old the engine is. I will hit accept after this answer Thanks Joe
yes, that is the correct compression for your model when it was brand new and it should still be the same if it is in good condition.
Nope, it won't be over 100psi unless someone has milled the deck or cyl heads.
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BackMaster Tech
732 satisfied customers
30+ years of experience
Master Tech
30+ years of experience
732 satisfied customers
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