Hi Guys.. Been a long time. 4 years I think Since I rebuilt the 1993 Evenrude with Iboats help.
The Motor is a 1993 115 Evenrude.
120 hours on rebuild.
On a 19' center Console.
has run like a champ since I turned the key.
The past year I have been getting a slight .. Bump / Buck out of the Engine or lower unit every time I plained off the first time. The rest of the day it wouldn't happen again.
Lately it started happening a little while under way. at 3800 to WOT it's like a Skip// almost like the prop is slipping. RPMS do not change when it happens.
Changed Plugs Filters.. etc..
Seemed Fine for the past 3 trips.. ( 2 men )
Now I have the boat up for sale. This evening I took a prospected buyer out for a test run. Including me. there were four of us weighing in at about 900 Lbs.. He was wondering if we could get up on plain. I said no Problem.
Well the boat had no problem plaining out and ran a cool 5200 rpm at WOT for about 3 minutes. We backed off the throttle and I let him take it in a turn at about 3200 in that turn We got the Skip.. Then about every 30 seconds for about 2 minutes. We backed down and ran back at about 2500 Rpms.. Kind of load free.. and she ran fine.. Seems this is happening under load only.
Sorry for the drawn out Story..
Any Ideas Guys?
Rod
The Motor is a 1993 115 Evenrude.
120 hours on rebuild.
On a 19' center Console.
has run like a champ since I turned the key.
The past year I have been getting a slight .. Bump / Buck out of the Engine or lower unit every time I plained off the first time. The rest of the day it wouldn't happen again.
Lately it started happening a little while under way. at 3800 to WOT it's like a Skip// almost like the prop is slipping. RPMS do not change when it happens.
Changed Plugs Filters.. etc..
Seemed Fine for the past 3 trips.. ( 2 men )
Now I have the boat up for sale. This evening I took a prospected buyer out for a test run. Including me. there were four of us weighing in at about 900 Lbs.. He was wondering if we could get up on plain. I said no Problem.
Well the boat had no problem plaining out and ran a cool 5200 rpm at WOT for about 3 minutes. We backed off the throttle and I let him take it in a turn at about 3200 in that turn We got the Skip.. Then about every 30 seconds for about 2 minutes. We backed down and ran back at about 2500 Rpms.. Kind of load free.. and she ran fine.. Seems this is happening under load only.
Sorry for the drawn out Story..
Any Ideas Guys?
Rod