Oil pump question

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skidoomt

Free Member

Feb 11, 2009

80

9

8

Greater Kalispell, MT

• Mar 10, 2015

• #1

After some time, I have got my 03 800 RMK engine back in the sled. I had to replace two pistons after dropping a value into one of the cylinder.

My question is what are the best ways to confirm that the oil pump is pumping. I would like to confirm that the oil pump is pumping to my end bearings and carb. The first ride out I added some extra oil to my gas to be on the safe side. After a short ride I could see that the oil level was lower, so the oil pump was pumping. I am just wondering if the oil was pumping to the end bearings. There was air bubbles in the end bearing oil lines. Included some photos. Would like to get some options....

 

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skidoomt

Free Member

Feb 11, 2009

80

9

8

Greater Kalispell, MT

• Mar 10, 2015

• #2

Here are the photos

 

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skidoomt

Free Member

Feb 11, 2009

80

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8

Greater Kalispell, MT

• Mar 10, 2015

• #3

Here is the clear photo:

 

brandon1

Active member

Premium Member

Jan 20, 2009

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Glenwood Springs

• Mar 10, 2015

• #4

I rig up a short section of tie wire and hook it around the oil pump lever, fire the sled up and pull the oil pump lever to full oil at idle. You can see the air bubbles move at that point. I do this to help summerize the sled and also shortly after the first fire up of the season to make sure the pump is pumping and things are getting a nice new shot of oil.

I also run 100:1 in my fuel per Indy Specialties request so I can keep their warranty. I use a lot of oil but things seem happy.

 

Last edited: Mar 10, 2015

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skidoomt

Free Member

Feb 11, 2009

80

9

8

Greater Kalispell, MT

• Mar 12, 2015

• #5

brandon1 said:

I rig up a short section of tie wire and hook it around the oil pump lever, fire the sled up and pull the oil pump lever to full oil at idle. You can see the air bubbles move at that point. I do this to help summerize the sled and also shortly after the first fire up of the season to make sure the pump is pumping and things are getting a nice new shot of oil.

I also run 100:1 in my fuel per Indy Specialties request so I can keep their warranty. I use a lot of oil but things seem happy.

Click to expand...

I tried that same thing. With the engine running at an idle, soon as I pull the oil pump level up the sled dies. I would conclude that the oil pump is pumping a bunch of oil into the carburetor and the engine dies.

 

sled_guy

Well-known member

Premium Member

Jul 5, 2001

3,566

843

113

Riverton, Utah

• Mar 18, 2015

• #6

No, you are probably activating the throttle safety switch and that is what is killing the motor. Even at full open on the pump the sled will still idle.

Check you throttle cable adjustment. Sounds like the oil pump return spring is what is putting enough force on the throttle cable to keep the dead man switch from activating so when you wire the oil pump open it dies.

sled_guy

skidoomt said:

I tried that same thing. With the engine running at an idle, soon as I pull the oil pump level up the sled dies. I would conclude that the oil pump is pumping a bunch of oil into the carburetor and the engine dies.

Click to expand...

 

whoisthatguy

Well-known member

Lifetime Membership

Dec 27, 2007

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43

• Mar 18, 2015

• #7

You put a mark on the oil reservoir and fill it up to that mark for every ride. Then during the ride, you stop and check that the oil level is being drawn down an appropriate amount, for the gas consumed.

 

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drumerjb

Free Member

Oct 19, 2014

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64

Jackson,Wi

• Oct 26, 2015

• #8

Vent the cap & your oil bubble in the line won t reappear after you bleed it out. I always had a oil bubble in that same spot on my 05 800 until I vented the cap. It never came back since venting was done.