What should the compression #'s be on a 250 HP johnson. ??
H hydra84 Cadet Joined Jun 15, 2010 Messages 6 Jun 15, 2010 #1 What should the compression #'s be on a 250 HP johnson. ??
kenmyfam Supreme Mariner Joined Aug 10, 2006 Messages 14,385 Jun 15, 2010 #2 Re: Compression Numbers Over 100 psi and within 10% of each other. Testers vary in accuracy though so be careful. Welcome to iboats.
Re: Compression Numbers Over 100 psi and within 10% of each other. Testers vary in accuracy though so be careful. Welcome to iboats.
J jonesg Admiral Joined Feb 22, 2008 Messages 7,174 Jun 16, 2010 #3 Re: Compression Numbers hydra84 said: What should the compression #'s be on a 250 HP johnson. ?? Click to expand... What yr and model number, the big block loopers run lower psi. Mine are 80psi and thats ok.
Re: Compression Numbers hydra84 said: What should the compression #'s be on a 250 HP johnson. ?? Click to expand... What yr and model number, the big block loopers run lower psi. Mine are 80psi and thats ok.
H hydra84 Cadet Joined Jun 15, 2010 Messages 6 Jun 19, 2010 #4 Re: Compression Numbers 1999 250 Johnson Oceanrunner My #'s are in the low 90's but fall within the 10% varance. I'm just wondering how much life does it have left.
Re: Compression Numbers 1999 250 Johnson Oceanrunner My #'s are in the low 90's but fall within the 10% varance. I'm just wondering how much life does it have left.
