2005 M7 Oil in throttle bodies...Replace Check Valves?

m7ascent · Nov 20, 2016

In the parts fiche it shows the banjo fittings #10 as being "check valves". Has anyone replaced the 3 banjo fittings and stopped their sled from draining oil through the throttle bodies over the summer making a mess? Or do I need to change the entire oil pump assembly? Thanks for any help

clutch · Nov 20, 2016

Change the check valves. Should cure the problem.

m7ascent · Nov 20, 2016

clutch said:
Change the check valves. Should cure the problem.

Thank you, that's what I needed to know. Will report back should this not be the fix.

Rixster · Nov 21, 2016

When you put it away for the summer make sure the oil bottle is at half full or less and you wont have this problem. At least that worked on the old 900s

RACINSTATION · Nov 21, 2016

It is a common thing that we see on most sleds. The M chassis with the intake on the front of the motor seem to be worse than average. If the sled sits for a long period of time it will almost always bleed oil into the intake tract. The check valves may certainly be bad, but I would doubt it. As stated above, the more volume you have in the oil tank, the more pressure you will have due to heat expansion and the more pressure you will have on the oil lines when it is hot.

boondocker97 · Nov 21, 2016

I wouldn't bother changing anything. My M7, dad's M8, M1000 all did it to some degree. My 2014 is the only laydown motor I've run that doesn't seep oil into the intake, but it's running pre-mix :face-icon-small-win

kidwoo · Nov 21, 2016

It's a secret way to make sure your pistons are well lubed when you don't run the sled for a long time.

You know......a 'safety feature'

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2005 M7 Oil in throttle bodies...Replace Check Valves?

m7ascent

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clutch

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m7ascent

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Rixster

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RACINSTATION

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boondocker97

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kidwoo

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