Ducati Monster Forum

Moto Board => Tech => Topic started by: TitanMonsterS4R on January 07, 2012, 03:43:23 PM

Title: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 07, 2012, 03:43:23 PM
Was fitting the other gas tank on my 06 S2R this evening.  After removing and reinstalling the fuel injector pump and connecting everything back up again, I fired her up and she sputtered like she wanted to start but wasn't getting enough fuel.  Blipped the throttle and she died.  Then I remembered that I forgot to connect the fuel pump wire.  Reconnected wire and she fired up, however, she's now making a sound like the engine is pinging....

http://s777.photobucket.com/albums/yy51/wbamiduro/Project%20Stealth/?action=view&current=IMG_0815.mp4

There's a little bit of smoke coming out the the exhaust, feel like thats the engine burning up the extra fuel in the system but the sound has me worried.  Thanks for the help forum...  
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 07, 2012, 03:51:01 PM
Sounds to me like a leaky something.

Injector?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 07, 2012, 04:03:46 PM
Quote from: ducpainter on January 07, 2012, 03:51:01 PM
Sounds to me like a leaky something.

Injector?

Thanks for the tip Ducpainter.  Went out and checked the fuel pump nuts.  Everything is connect tightly.  

Fired her up again while I was out there.  The engine sounds like it's knocking and not running at full capacity.  Could I have messed up the belt timing when I tried to start her without the fuel pump plug connected, which is causing the problem?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 07, 2012, 04:18:44 PM
Quote from: MadDuc 20/20 on January 07, 2012, 04:03:46 PM
Thanks for the tip Ducpainter.  Went out and checked the injector nuts.  Everything is connect tightly. 

Fired her up again while I was out there.  The engine sounds like it's knocking and not running at full capacity.  Could I have messed up the belt timing when I tried to start her without the FI plug connected, which is causing the problem?
If you didn't mess with the belts I wouldn't suspect them.

Is it running on both cylinders?

You can check by putting your hand near each header. If it's hot it's firing.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 07, 2012, 04:43:22 PM
Quote from: ducpainter on January 07, 2012, 04:18:44 PM
If you didn't mess with the belts I wouldn't suspect them.

Is it running on both cylinders?

You can check by putting your hand near each header. If it's hot it's firing.

I'll check on that in the morning.  During the last check when I blipped the throttle up to about 4K RPM, it felt like it was to cut off and the engine started stuttering.  If it is a cylinder misfire, how does one fix that?

The fuel pump makes the sound as if it's fully functioning when I turn the bike on and everything sweeps. Fuel pump also makes the same noise when I go to shut her down as she normally does. 

Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 07, 2012, 04:45:32 PM
99% of the time it was the last thing you screwed with.

I'd look closer at that injector you had out.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 07, 2012, 04:53:58 PM
thanks DP.  I'll pull it back out in the AM and have a look see.

Open to other suggestions as well as DP's. 

Would have to have to send it in to the shop  [bang]

Thanks for the help all in advance!
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 07, 2012, 04:57:23 PM
Quote from: MadDuc 20/20 on January 07, 2012, 04:53:58 PM
thanks DP.  I'll pull it back out in the AM and have a look see.

Open to other suggestions as well as DP's. 

Would have to have to send it in to the shop  [bang]

Thanks for the help all in advance!
Check the o-ring seal for damage.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 07, 2012, 04:59:43 PM
misspoke before when I said fuel injector.  I only had the fuel pump out.  Never messed with the injector.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 07, 2012, 05:18:18 PM
Quote from: MadDuc 20/20 on January 07, 2012, 04:59:43 PM
misspoke before when I said fuel injector.  I only had the fuel pump out.  Never messed with the injector.
Hmmmm....

look in the tank with the bike running and see if you see any fuel spraying around.

Also check your plugs.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 05:45:51 AM
Quote from: ducpainter on January 07, 2012, 05:18:18 PM
Hmmmm....

look in the tank with the bike running and see if you see any fuel spraying around.

Also check your plugs.

Checked the tank, no gas sloshing around in there from what I can see.  Also both plugs were pretty black so I replaced them.  Fired the bike up again and it's still making that pinging sound from the from of the bike.  Both cylinders were warm, burned my hand trying to get to the one by the exhaust pipe towards the rear of the bike.  Damn those things get hot fast.  Other suggestions??
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: Howie on January 08, 2012, 05:52:37 AM
Return line pinched?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 08, 2012, 05:54:11 AM
Quote from: MadDuc 20/20 on January 08, 2012, 05:45:51 AM
Checked the tank, no gas sloshing around in there from what I can see.  Also both plugs were pretty black so I replaced them.  Fired the bike up again and it's still making that pinging sound from the from of the bike.  Both cylinders were warm, burned my hand trying to get to the one by the exhaust pipe towards the rear of the bike.  Damn those things get hot fast.  Other suggestions??
Let's back up a little...after you answer howie's question.

Why did you take the tank off and have the pump out?

Did you replace the fuel filter?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 08:47:53 AM
Quote from: ducpainter on January 08, 2012, 05:54:11 AM
Let's back up a little...after you answer howie's question.

Why did you take the tank off and have the pump out?

Did you replace the fuel filter?

I removed the tank so I could swap it with the one that was Caswell coated with the one that isn't so that one can have the same treatment done.  I've removed my tank before and never had this type of an issue....Not sure what the heck I did wrong.

Quote from: howie on January 08, 2012, 05:52:37 AM
Return line pinched?

I'm going to look into this right now.  Back in a few...
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 10:13:23 AM
Return line clear and free, re-checked all the connectors no problem with those.

While scouring over the bike, I did notice that my battery tender cap was severed and it looks like it happened via one of the timing belt cogs.  Not sure how it happened, might have been when I was moving wires around to swap tanks.  They are covered by Speedymoto belt overs but it's not fully enclosed  :( 

Understanding that the strap that holds the connector cap is small, could that have set things off like this?  If so, what do I need to get things back in sync and did I do damage while testing to find the problem by running the bike and blipping the throttle?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 08, 2012, 10:43:12 AM
Time to check the belt timing.
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 11:10:49 AM
Hey DP-

I found the Ducati video on how to install but how do I remove the belts??
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 08, 2012, 11:19:01 AM
Quote from: MadDuc 20/20 on January 08, 2012, 11:10:49 AM
Hey DP-

I found the Ducati video on how to install but how do I remove the belts??
You can check the belt timing without removing them.

Are they off?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 11:21:52 AM
Quote from: ducpainter on January 08, 2012, 11:19:01 AM
You can check the belt timing without removing them.

Are they off?

how do I check to see if they are off?  See if the dots line up on the horizontal and vertical pulleys?
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: Dellikose on January 08, 2012, 11:24:04 AM
Quote from: MadDuc 20/20 on January 08, 2012, 11:10:49 AM
Hey DP-

I found the Ducati video on how to install but how do I remove the belts??

If you do end up needing to remove them:

http://www.ducatisuite.com/beltchange.html (http://www.ducatisuite.com/beltchange.html)
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 08, 2012, 11:25:31 AM
Quote from: MadDuc 20/20 on January 08, 2012, 11:21:52 AM
how do I check to see if they are off?  See if the dots line up on the horizontal and vertical pulleys?
Pull the plugs...turn the engine until the mark on the lower pulley lines up with the mark on the engine case. It's pretty much at the 6 o'clock position.

There will be some nubs on the inner belt covers that will line up with the marks on the belt pulleys.

The video should show the relative locations of the marks.

If you aren't sure post pics.

Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 08, 2012, 11:48:30 AM
Quote from: ducpainter on January 08, 2012, 11:25:31 AM
Pull the plugs...turn the engine until the mark on the lower pulley lines up with the mark on the engine case. It's pretty much at the 6 o'clock position.

There will be some nubs on the inner belt covers that will line up with the marks on the belt pulleys.

The video should show the relative locations of the marks.

If you aren't sure post pics.

thanks guys
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 10, 2012, 03:17:02 PM
So I took a look at my belts.  Made some adjustments and then took it off to the the dealer to make sure I didn't make the beast with two backs anything else up.  Just not too sure of myself when it comes to the engine. 

They checked it out and thought that I might have bent a piston but everything looked good.  Pressure was at 130 for the front and 125 at the back. 

Should I be afraid or worried about anything when on the road?  Plan on picking it up this weekend. 

Thanks again for the help!
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: ducpainter on January 10, 2012, 03:54:52 PM
Quote from: MadDuc 20/20 on January 10, 2012, 03:17:02 PM
So I took a look at my belts.  Made some adjustments and then took it off to the the dealer to make sure I didn't make the beast with two backs anything else up.  Just not too sure of myself when it comes to the engine. 

They checked it out and thought that I might have bent a piston but everything looked good.  Pressure was at 130 for the front and 125 at the back. 

Should I be afraid or worried about anything when on the road?  Plan on picking it up this weekend. 

Thanks again for the help!
Bent a piston?

With those compression numbers I'd ride it and be happy.

If it all goes to hell next month just deal with it then. ;D
Title: Re: Engine Making a Funny Noise....What did I do?
Post by: TitanMonsterS4R on January 10, 2012, 05:29:51 PM
Quote from: ducpainter on January 10, 2012, 03:54:52 PM
Bent a piston?

With those compression numbers I'd ride it and be happy.

If it all goes to hell next month just deal with it then. ;D

Thanks DP!