talley2191
Cadet
- Joined
- Aug 22, 2010
- Messages
- 9
Boat is 1998 21' CC Striper with a 1998 Evinrude Ocean Pro 175 HP (non ficht) engine with 430 hours
Took the boat to OBX and she ran great. Had a period of about 6 weeks with no use and when I got out again she started the day by running great, and then the problem surfaced. She started to "sputter and hesitate (like it was falling on its face)" and would not get above 2000rpms which meant max speed was about 8 mph.
Figuring I had a fuel issue, I limped back to the dock and changed the water fuel sperator, added some fresh gas, sea foam, and changed the spark plugs. Test ran it again yesterday and the "sputter" was gone, but she still will not get above 2,000 rpms when under a load as in the water (engine will go above 2,000 rpms when in neutral so no throttle linkage problem.) Additionally, I have gotten a check engine alarm on one of the many attempts to throttle up that cleared once I shut it down and restarted it.
There seems to be improvement in idle smoothness but it does seem to be idleing lower than it usually does (500 rpms as opposed about 600-650 rpms). I had a problem which I though was similar about a year ago and it was fixed with the addition of the water fuel seperator. As a result I focused on that (since it was 30 hours past due to be changed) and did not check or clean the fuel filter (which is reusuable screen for this model). Last year it was fine, so my tunnel vision took me to back to the water fuel seperator issue.
My Thoughts: I am hoping it is the easiest fix and that would be some debris on the fuel filter. Of course I know it could be a carb issue, vacuum leak, timing, or god forbid a compression issue.
Any thoughts or direction would be very appreciated.
Took the boat to OBX and she ran great. Had a period of about 6 weeks with no use and when I got out again she started the day by running great, and then the problem surfaced. She started to "sputter and hesitate (like it was falling on its face)" and would not get above 2000rpms which meant max speed was about 8 mph.
Figuring I had a fuel issue, I limped back to the dock and changed the water fuel sperator, added some fresh gas, sea foam, and changed the spark plugs. Test ran it again yesterday and the "sputter" was gone, but she still will not get above 2,000 rpms when under a load as in the water (engine will go above 2,000 rpms when in neutral so no throttle linkage problem.) Additionally, I have gotten a check engine alarm on one of the many attempts to throttle up that cleared once I shut it down and restarted it.
There seems to be improvement in idle smoothness but it does seem to be idleing lower than it usually does (500 rpms as opposed about 600-650 rpms). I had a problem which I though was similar about a year ago and it was fixed with the addition of the water fuel seperator. As a result I focused on that (since it was 30 hours past due to be changed) and did not check or clean the fuel filter (which is reusuable screen for this model). Last year it was fine, so my tunnel vision took me to back to the water fuel seperator issue.
My Thoughts: I am hoping it is the easiest fix and that would be some debris on the fuel filter. Of course I know it could be a carb issue, vacuum leak, timing, or god forbid a compression issue.
Any thoughts or direction would be very appreciated.