Searaybio270
Active Member
- Jul 8, 2010
- 1,058
- Boat Info
- 1996 EC, Garmin 3210, Dinghy - Seadoo Jet boat with twin 85 horse. Fun and Fast.
- Engines
- 7.4 MC 360 HP each
Westerbeke 7KW
Before i start I have posted this in two other areas. Here and in the 410Sundancer/400EC Official Thread. No input yet but I am running out of time and need some suggestions
So, here's the story...........
In June I started both engines while still on land. No problems with either one. A few days later I launch the boat. Starboard engine starts and purrs like a kitten. I am very happy. Port engine - having trouble starting. Finally starts but it is very erradic. After a while it does settle down and I slowly move her to the slip.
Run it for a while in the slip and she appears to be settling down. So I shut both down. Do some work and then head off to help the others at the marina for clean up day. Later in the day I come back and I try to start the port engine - "Hydro Lock". A week later on one engine I am off to see the mechanic at the marina up the river.
They do some tests and find that the engine is in bad shape. I say how since I just had it rebuilt two years ago. They pull the engine and off to the shop for a rebuild.
Now some 8 weeks later the engine is back together. They tell me that at 1500 and 1800 and 2500 RPMs she is spot on. The issue is when she comes down to idle - it surges back up and then back down.
They have checked the IAC, MAF, mechanical fuel pump and the other one, some sensors and sprayed it to see if maybe there is a vaccum leak. I do believe the Mercruiser rep will be there but in the meantime - Any Ideas.
Haven't boated yet this summer and I will spend more money on another engine then I care to and haven't been anyplace.
then this: 8/22/14
So, Friday afternoon of the above date, I stop by the marina and they tell me the IAC wasn't working so they replaced it and she ran fine. they also said they would clean her up and I could take it on Sat afternoon or Sunday. I opted for Sunday b/c of the high tide.
On Sunday I go to the marina to find they hadn't cleaned the boat. So I take the next 5 hours and clean the cockpit area and I mean wall to wall. Then the stuff they threw into the cabin had to be removed, cleaned or thrown away. Redid all the glass in and out, cleaned the stern and the bow of the boat.
So, now I am pretty close to leaving and start the engines. The port (new engine) is idling around 1500RPMs but after a minute settles down to idle range and sounds great. Start the Starboard and she goes right into a perfect idle. So I go and undo the power cords and then the lines and pull away. And I am very happy to have my boat back. Until.......
I am not even out of this very small marina and the port engine starts surging and won't stop. Back to the slip it goes and still no boat. Waiting on a call from the marina to let me know if they figured it out. I am so disappointed. Nine weeks in the shop and still not working.
Then this: 8/26/14
So, as of this date the engine still won't idle once it warms up. The have put the computer on it and there are no faults. None. Nada. Nothing. They have replaced parts they thought might be doing it but nothing. They called the regional Mercruiser Rep but he is in Washington State on vacation. I hope he gets back ok as he must be the only contact they have. What is up with that?
So I call Mercruiser in Wisconsin. They ask if they did a fuel pressure test. Yes they did. All ok. Ignition componets are good. Yes. IAC and MAF all good. Fuel Pump is good. No vaccum issues. Nothing. Maybe lack of beer in the cooler is why? Hmm....
Now this:
I went to the Marina last night and they have no idea. There are ZERO faults and everything they send to Mercruiser is ok according to Mercruiser. I even asked about the fuel pressure - Nope it's good.
Today 8/28/14 they replaced the idle sensor - waiting to hear from them.
So here I am boatless all summer and very tired of shelling out $1000's for nothing.
Ok guys - Any ideas will be greatly appreciated.
So, here's the story...........
In June I started both engines while still on land. No problems with either one. A few days later I launch the boat. Starboard engine starts and purrs like a kitten. I am very happy. Port engine - having trouble starting. Finally starts but it is very erradic. After a while it does settle down and I slowly move her to the slip.
Run it for a while in the slip and she appears to be settling down. So I shut both down. Do some work and then head off to help the others at the marina for clean up day. Later in the day I come back and I try to start the port engine - "Hydro Lock". A week later on one engine I am off to see the mechanic at the marina up the river.
They do some tests and find that the engine is in bad shape. I say how since I just had it rebuilt two years ago. They pull the engine and off to the shop for a rebuild.
Now some 8 weeks later the engine is back together. They tell me that at 1500 and 1800 and 2500 RPMs she is spot on. The issue is when she comes down to idle - it surges back up and then back down.
They have checked the IAC, MAF, mechanical fuel pump and the other one, some sensors and sprayed it to see if maybe there is a vaccum leak. I do believe the Mercruiser rep will be there but in the meantime - Any Ideas.
Haven't boated yet this summer and I will spend more money on another engine then I care to and haven't been anyplace.
then this: 8/22/14
So, Friday afternoon of the above date, I stop by the marina and they tell me the IAC wasn't working so they replaced it and she ran fine. they also said they would clean her up and I could take it on Sat afternoon or Sunday. I opted for Sunday b/c of the high tide.
On Sunday I go to the marina to find they hadn't cleaned the boat. So I take the next 5 hours and clean the cockpit area and I mean wall to wall. Then the stuff they threw into the cabin had to be removed, cleaned or thrown away. Redid all the glass in and out, cleaned the stern and the bow of the boat.
So, now I am pretty close to leaving and start the engines. The port (new engine) is idling around 1500RPMs but after a minute settles down to idle range and sounds great. Start the Starboard and she goes right into a perfect idle. So I go and undo the power cords and then the lines and pull away. And I am very happy to have my boat back. Until.......
I am not even out of this very small marina and the port engine starts surging and won't stop. Back to the slip it goes and still no boat. Waiting on a call from the marina to let me know if they figured it out. I am so disappointed. Nine weeks in the shop and still not working.
Then this: 8/26/14
So, as of this date the engine still won't idle once it warms up. The have put the computer on it and there are no faults. None. Nada. Nothing. They have replaced parts they thought might be doing it but nothing. They called the regional Mercruiser Rep but he is in Washington State on vacation. I hope he gets back ok as he must be the only contact they have. What is up with that?
So I call Mercruiser in Wisconsin. They ask if they did a fuel pressure test. Yes they did. All ok. Ignition componets are good. Yes. IAC and MAF all good. Fuel Pump is good. No vaccum issues. Nothing. Maybe lack of beer in the cooler is why? Hmm....
Now this:
I went to the Marina last night and they have no idea. There are ZERO faults and everything they send to Mercruiser is ok according to Mercruiser. I even asked about the fuel pressure - Nope it's good.
Today 8/28/14 they replaced the idle sensor - waiting to hear from them.
So here I am boatless all summer and very tired of shelling out $1000's for nothing.
Ok guys - Any ideas will be greatly appreciated.
