Ive conducted a search and didn't find anything directly related to my situation.
I had my bike apart all winter and assembled it. It ran well but had a leak at the base gasket on the rear cylinder. Tore it all apart again and replaced the base/head gaskets. Fired the bike up again last night and the oil light won't go off. I checked everything again and found nothing that threw up a red flag.
Having had the rear cylinder off, what could I have done to cause this? Obviously I had the oil pressure sensor out to get the belt covers off but that is back in its spot. What else could be causing the problem?
Bike is an 02 MS4
Quote from: lazyjinglin717 on June 07, 2012, 09:32:33 AM
Ive conducted a search and didn't find anything directly related to my situation.
I had my bike apart all winter and assembled it. It ran well but had a leak at the base gasket on the rear cylinder. Tore it all apart again and replaced the base/head gaskets. Fired the bike up again last night and the oil light won't go off. I checked everything again and found nothing that threw up a red flag.
Having had the rear cylinder off, what could I have done to cause this? Obviously I had the oil pressure sensor out to get the belt covers off but that is back in its spot. What else could be causing the problem?
Bike is an 02 MS4
checked the wire to the sensor to make sure there are no kinks or anything?
Yeah, I'd be checking the connection. The light comes on in the absence of acceptable signal from the sensor. So too little pressure will trip it the same as the wire not being connected to the sensor at all.
You can hook up a pressure gauge to that port to verify your pressures. I had a leak by the clutch slave - and it'd manifest as a flickering oil light, when the bike was hot and at idle.
If you light is always on, at full brightness even when the bike is cold (thickest oil) I'd be looking at the electrics. Be sure to check inside the sensor for a bent pin. If you got frustrated and a little rammy, it's not hard to bend the connection in the sensor
It could also be the sensor that's not working. It happened to a friends monster 600. Just replaced the sensor, and everything worked perfect after that.
The sensors aren't known to fail like that - spring leaks sure, but stop sending a signal, not so much. Not saying it isn't possible, but down on the list after more simple possibilities
Quote from: Slide Panda on June 07, 2012, 10:22:20 AM
The sensors aren't known to fail like that - spring leaks sure, but stop sending a signal, not so much. Not saying it isn't possible, but down on the list after more simple possibilities
Make sense to check some other things first, without replacing parts.
I am going to disconnect the coils, remove the oil pressure switch an crank the engine to see if i get any oil. If that doesn't work, I will have to look at the sensor.
Sound like a sensible plan eh?
Engine has oil?
Oil pickup screen is tight?
With key on, after needle sweep and engine not running, unplugging the pressure sensor should turn the light off.
Quote from: Speeddog on June 07, 2012, 01:16:40 PM
Engine has oil?
Oil pickup screen is tight?
With key on, after needle sweep and engine not running, unplugging the pressure sensor should turn the light off.
Oil in there and the screen is tight. The light goes out when I yank the plug
Coils unplugged and switch out pumped oil all over my garage floor
Quote from: lazyjinglin717 on June 07, 2012, 02:39:35 PM
Coils unplugged and switch out pumped oil all over my garage floor
I'd clean up the oil and replace the sender. ;D
When that happened to me, it was 'cause I'd make the beast with two backsed up and left the oring that connects the oil gallery on the sidecover that leads to the pressure sender out.
big
Not sure what o-ring you are referring to. I don't recall having dealt with any o-rings other than the intake bells.
If I am going to replace the switch, I suppose I should look into getting it paired with the male plug?
Man I hate anything with wiring. I am so electronically dumb it ain't even funny.
WTB thread over here if anybody has any leads: http://www.ducatimonsterforum.org/index.php?topic=57665.0 (http://www.ducatimonsterforum.org/index.php?topic=57665.0)
Easiest way is to go OEM;
53940302A Switch ~$44
Quote from: lazyjinglin717 on June 07, 2012, 05:20:52 PM
Not sure what o-ring you are referring to. I don't recall having dealt with any o-rings other than the intake bells
Part # 12
(https://dl.dropbox.com/u/7633426/DMF/RHS_cover.png)
Update:
Replaced the switch and the light went out. Everything looks to be ok at this point.
Thanks to Jason1 and his kindness for donating the sensor!!!
And thanks to the rest of the DMF for donating your time and energy to help me out [thumbsup]
Just happy to finally help a fellow member out. Glad to hear you're up and running again.
Light is back on again.
Went through the same things I did the first go-round and everything is the same.
I will replace the sensor with a new one.
What the hell is making them go bad?
I rode in the rain... washed the bike pretty well from a big trip to WV... bike got rained on yesterday at work.
The light was off on the way home yesterday and came/stayed on this morning. I yanked the plug on the sensor and there was some water in there. I took an air hose to it and dried it very well, plugged it back in and the light stayed on. Will a little bit of water in the connection destroy the sensor that easily?
Humbug >:(
Moisture creates a weak ground, causing the light to glow. Getting all the moisture out is more difficult than you think. Did you repack with dielectric grease? Just in case, an oil pressure check with a mechanical gauge might be in order.
I did not use any grease upon replacement last time.
On my 06 S2R I had repeated problems with the light coming on because of moisture in the plug-in. It can take days to get it dried out, I finally resorted to riding with it unplugged, checking every few days to see if it was out. Then I packed it with dielectric grease, that was probably 30,000 miles ago, no issues since and I do ride in the rain too often. bill
Hi Guys,
This is the post that attracted me here in the first place, so thought I'd better add to it.
My new acquired 800 S2R got caught out in the rain last week while I was at a work function, when I went to start 'er up she was pretty wet :'( - fired up ok but the oil light wouldn't go out. Quickly switched off, checked the oil level, it was fine, so assuming the oil pump hadn't managed to disconnect itself while parked I guessed it must be the sensor malfunctioning. I've had previous experience with oil pressure switches failing on various cars, nonetheless rode home very gingerly.
Once home, after a thorough chamois down, I disconnected the wire to check the light went out & left her for a few days to dry out properly. Fired up, the light went out as normal so must have got water in the switch/connector & shorted it out. A small piece of duct tape around where the cable enters the connector should solve the problem & avoiding leaving my Monster out in the rain in future! :-[
Ciao, Ian
The anwer is to pack the connector with dielectric grease.