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200 Merc engine
#11713445
07/09/16 02:27 PM
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Joined: Mar 2016
Posts: 1,697
Lazy Ike
OP
Extreme Angler
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OP
Extreme Angler
Joined: Mar 2016
Posts: 1,697 |
Iam looking at boat, has a 200hp Merc . What should compression numbers be? Its a2000yr model. thanks for help.
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Re: 200 Merc engine
[Re: Lazy Ike]
#11713516
07/09/16 03:24 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Which 200? EFI, Optimax or what. Compression on all cylinders within 10% of each other is the general rule.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: 200 Merc engine
[Re: Lazy Ike]
#11714789
07/10/16 01:35 PM
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Joined: Dec 2014
Posts: 1,665
Muzzlebrake
Extreme Angler
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Extreme Angler
Joined: Dec 2014
Posts: 1,665 |
+- 5 psi between all cylinders and 120 psi cold cranking compression would be great. Below 100 psi on any cylinder would concern me. If any two cylinders next to each other are both low might indicate a blown or leaking head gasket. My 2003 EFI 150 is still setting on 125 all holes. A 200hp merc should be about the same if it is a 2.5L v6 engine.
From Genesis: "And God promised men that good and obedient wives would be found in all corners of the earth."
Then He made the earth round...and He laughed and laughed and laughed!
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Re: 200 Merc engine
[Re: gary purdy]
#11714895
07/10/16 02:59 PM
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Joined: Mar 2016
Posts: 1,697
Lazy Ike
OP
Extreme Angler
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OP
Extreme Angler
Joined: Mar 2016
Posts: 1,697 |
Tanks gary, don't think its efi, he said its a2000yr mod.
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Re: 200 Merc engine
[Re: Muzzlebrake]
#11714898
07/10/16 03:00 PM
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Joined: Mar 2016
Posts: 1,697
Lazy Ike
OP
Extreme Angler
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OP
Extreme Angler
Joined: Mar 2016
Posts: 1,697 |
Thanks, for reply Muzzlebrake,gonna check it out today.
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