Exhaust- What did I do wrong?

[Slopeflyer]

Rebuilt the carbs, new fuel lines, sprayed storage oil into spark plug holes while I did the work. Now I have got it all back together and when I fire it up It's blowing smoke out of the exhaust Manifold. I torqued the for bolts on the exhaust to 18 pounds. I also did this in a Crisscross pattern slowly adding turns to each one. I also used a new gasket. I have not hooked water to it because I don't want to have water go into my intake box. It was hard to get the pipe to line up Perfectly,but I was able to get the bolts in with my fingers first. Any Suggestions? Can I Reuse the gasket if I have Redo the Exhaust? Man I just want to go for a ride. There is a gap between the exhaust and the engine where the bolt from hell is. 2000 seadoo lrv 951cc.

 

[Strizzo]

You can't tighten the ring until you get the four bolts started and the surface seated, or it won't seal up. On top of that, the 951 exhaust is a pain to get right.

 

[Slopeflyer]

I have loosened the bolt under the spark plugs and the one exhaust bracket on the front of the engine. It just doesn't want to seat Properly. Can I use the same gasket because the engine hasn't got warm yet. Thanks Noob.

 

[ski-d00]

I suggest you read the manual on the bolt tightening sequence and torque sequence. This includes all the pipe mount and bracket bolts, not just the 4 bolts. It is very important, you will ruin the engine if not followed correctly. This is one of the major reasons the 951 gets such a bad rap from people but it is not difficult or complicated. You just have to make sure the pipe/exhaust manifold are properly aligned, you just can't bolt things together. SD gives you a very simple procedure to follow but nobody seems to do this for some reason. They bolt together improperly then blame the engine for being a dud.

Pipe bushing condition is also very important, worn out bushings will allow the pipe to vibrate excessively and either break bolts at the ex man/pipe connection or leak water into the motor and trashing it.

To tighten the nut on the ex man/pipe connection, just unbolt the carbs and let them hang then there is plenty of room. It really isn't the bolt from hell, quite simple really.

 

[Slopeflyer]

I do not have a manual. I bought a Specialty tool for the bottom nut on the Exhaust from sbt. It works well and I don't have to drop the carbs. I have only owned the ski for three weeks.

 

[ski-d00]

Well, to answer your question in your title. You didn't read the manual, that's what you did wrong. See below for what you should do.

btw, that sbt nut tool is junk, I have used it as well as the proper sd tool. if you want to torque it properly, unbolt the carbs, takes 2 minutes. only trying to help.

 

[ski-d00]

Actually, what you did wrong was that you took the pipe off in the first place. No need to remove the pipe when removing the carbs. Very simple to work around the pipe to access the carbs but I understand you are not experienced and have only owned it a few weeks but you created more work for yourself in the process. If you would have come here first, we could have advised you on the proper way to do everything.

Not trying to preach, just trying to help. There are very experienced people here who can help.

 

[Slopeflyer]

First and Foremost Thank You. The reason I took the exhaust off was the bolts one the carb had never been off and my friend I bought it from took it into the Ocean. There was a lot of Corrosion and I Couldn't Loosen them, I had to apply heat. I was Worried about stripping them or breaking one off.

 

[SabrToothSqrl]

The 951 pipe is an art. I've done at least 8 to date, and have another to go next week.

 

[caliburn]

I had the same issue with mine as it is a pain to get lined up right, and it is a dance trying to do it, your gasket is fine to reuse as it is new, your exhaust mount bolts have to be loose to position it right to the manifold, with the Carbs off that alignment bolt has to be in first and seated /threaded down far enough or it will bind on the exahust and make it that much harder to align, it still takes time to align proper to get the rest of the bolts in and tourqed down, then the mounting bolts tighten the rest of the way down.

 

[Slopeflyer]

Quick update. I didn't realize the washer on the bottom bolt near carbs was under my exhaust gasket so matter how I would tighten it there would always be a gap. So Frustrating, but at least I know what the problem is. I now need to order a new gasket because I damaged the new one I have now.

 

[SabrToothSqrl]

quick mechanic tip:

Super glue the washer TO the nut. just a few drops around the washer, let it dry, then spin the nut on. that will hold the washer in place for the install.

SabrToothSqrl's 951 tip #247.

 

[Seadoobuddy]

quick mechanic tip:
Super glue the washer TO the nut. just a few drops around the washer, let it dry, then spin the nut on. that will hold the washer in place for the install.
SabrToothSqrl's 951 tip #247.

Please post the first 246 tips....951 owners can use the help.

 

[SabrToothSqrl]

It's more like the Rules of Acquisition... you only get them here and there

http://en.memory-alpha.org/wiki/Rules_of_Acquisition

 

[Slopeflyer]

Thanks I will do that. Ordered new exhaust gasket and carb gaskets. Thanks goodness I live in Southern California I still will be able to test it out after its back together. Yesterday 102 Degrees out at my house.:thumbsup:

 

[SabrToothSqrl]

Well don't you suck, I just winterized 4 skis and a boat...

 

[RodInEscondido]

Well don't you suck, I just winterized 4 skis and a boat...

But just think of all the fun you will have in the snow when we in So Calif need to go to the mountains to find snow. Only in the upper 90s at my place over the weekend. Dang ... the Monday smartass coming out in me again.

Maybe I need to reread the winterizing sections here again, sounds like fun ... well, maybe not.

Rod

 

[SabrToothSqrl]

the ONLY fun part of snow is plowing the driveway w/my new mower... I'll admit that's fun... that and doughnuts w/the Tahoe in parking lots...

but I'd rather have 90 and sunny!

 

[RodInEscondido]

Of course the down side of So Calif: earthquakes and wildfires:
http://www.cbs8.com/story/19617891/shockey-fire-containment-increases

And the real fire season is not here yet.

Rod