pickle8486
New Member
Ok guys here's the lowdown on my 2004 seadoo xp di. completely rebuilt 951 black engine with 2 hours of break in time.
Had it taken to the local seadoo dealer and serviced by their master mechaninc and ok'ed. They set timing, cleaned out the gas i had in it, and bled the oil injection pump,they tank tested it and said everything looked good.. i installed the engine and had them do a once over of it. 3 weeks ago it had 140 psi in both cylinders , today i pulled compression and it only had 130 lbs in both cylinders. The plugs are dark but not fouled. i am running premix in the gas also, i put just 2 pints of seadoo synthetic in with the gas and filled it up with premium.
over the weekend it would not get over 25 mph, no warning lights or nothing. i just finished checking the fuel pressure and its fine, 27lbs initial and 100+ with engine rev'ed a tad. the needle did bounce alot at idle between 70-90 lbs. i thought it was the pump but apparently not. With no lights on and in my opinion a pretty significant decrease in psi on compression i am wondering if the oil injection pump is working. i did bench test the pump with a high speed drill and it was bled by the mechanic ,but i wonder. it starts and idles fine, at aprox 1600rpm out of water. i did a quick rev up to see if it would reach higher rpms(yes i know its bad) and with a quick 1 second punch of the throttle it got to 5720 rpm probably would have went higher but i didnt want to hold it on it. Also i am getting 13.1 volts charging while running so the rectifier seems to be good. whats next? any help would be greatly appreciated. I just hate to take it back to the mechanic but that might be my only option. opinions? ideas?
btw, the 951 is a p.i.t.a. to put in versus the 787 rfi in my gti, it went off without a hitch in 3 hours.The 951 took over a day, and whats up with the exhaust bolts and nuts?:bs:
Had it taken to the local seadoo dealer and serviced by their master mechaninc and ok'ed. They set timing, cleaned out the gas i had in it, and bled the oil injection pump,they tank tested it and said everything looked good.. i installed the engine and had them do a once over of it. 3 weeks ago it had 140 psi in both cylinders , today i pulled compression and it only had 130 lbs in both cylinders. The plugs are dark but not fouled. i am running premix in the gas also, i put just 2 pints of seadoo synthetic in with the gas and filled it up with premium.
over the weekend it would not get over 25 mph, no warning lights or nothing. i just finished checking the fuel pressure and its fine, 27lbs initial and 100+ with engine rev'ed a tad. the needle did bounce alot at idle between 70-90 lbs. i thought it was the pump but apparently not. With no lights on and in my opinion a pretty significant decrease in psi on compression i am wondering if the oil injection pump is working. i did bench test the pump with a high speed drill and it was bled by the mechanic ,but i wonder. it starts and idles fine, at aprox 1600rpm out of water. i did a quick rev up to see if it would reach higher rpms(yes i know its bad) and with a quick 1 second punch of the throttle it got to 5720 rpm probably would have went higher but i didnt want to hold it on it. Also i am getting 13.1 volts charging while running so the rectifier seems to be good. whats next? any help would be greatly appreciated. I just hate to take it back to the mechanic but that might be my only option. opinions? ideas?
btw, the 951 is a p.i.t.a. to put in versus the 787 rfi in my gti, it went off without a hitch in 3 hours.The 951 took over a day, and whats up with the exhaust bolts and nuts?:bs:
