sharpscuba
Banned
Hoop that is what I read out of this also and I agree this would not be normal.
Remember this is an EVO.
carbon etc. in the relief valve.
Remember this is an EVO.
Could be a 7 Lb fluctuation in the gauge too or it could be some carbon etc. in the relief valve. The gauges aren't all that accurate.
No glyder it's a 2001 Roadglide twin cam - what are the chances that it's the carbon in the relief valve on a twin cam? Or how about possibly the sending unit or gauge itself?
FXRS, So are we talking about holding a ROCK STEADY rpm of 3000 and the oil pressure is drifting 9 psi.?
that's why I wondering if it might be the sending unit or possibly the gauge itself. .
Yes- but not always,the 9 psi is the total range of fluctuation - it may go from 33 down to 27 for a while then go back up to 32 and stay for a bit then go to 26 then back up to 30 - the 9 psi is the range that it varies -that's why I wondering if it might be the sending unit or possibly the gauge itself. With the bike fully warmed up, if the psi is 26@ 2700rpm and I get off the freeway and shut the bike off, even just for 3-4-minutes then start it up the psi will go up to 33-34 psi @2500rpm and stay for a at least a couple of minutes.
Absolutely. It can be the sending unit, gauge or the oiling system itself. You will need to hook up a temporary mechanical gauge to the engine port and see what you read. Does not have to be expensive, fancy or accurate. You really don't care about the "absolute pounds" of oil pressure. You just want to see if it varies while riding and holding a fixed RPM.