oil Pressure
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2nd Gear
Joined: Jul 2016
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From: Louisiana
oil Pressure
Yesterday it was 103*. When i made a stop, I noticed that my oil pressure dropped to about 5# of pressure. When I took off, it went back to 28-32#. Is this normal, once the oil gets hot?
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Joined: Feb 2015
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From: Galt's Gulch - MI
That's been my experience with multiple HD's with oil pressure gauges; make a stop for fuel with the engine fully heat soaked on a nice hot day and when you restart the pressure is going to read rather low. Start to bring RPM's up and the pressure is fine and as you begin riding and the engine cools the pressure is back at its usual reading; on this Wide Glide 103" that's 40 PSI with SAE 50 VR1 engine oil... you're good to go 
No air flow at a stop and a heat soaked engine? That oil get's hot and it does affect your oil pressure readings when you first start the bike again...
No air flow at a stop and a heat soaked engine? That oil get's hot and it does affect your oil pressure readings when you first start the bike again...
Extreme HDF Member
Joined: Feb 2015
Posts: 10,907
Likes: 8,758
From: Galt's Gulch - MI
Exactly; I certainly don't want to turn this in to an oil filter debate but one of the reasons I prefer permanent oil filters is the increased oil flow rates they offer. HD's run on their volume and I'll take all the added oil flow I can
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From: Bedford UK
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Cruiser
Joined: Oct 2012
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From: McMinnville,Tn.
My 09 Street glide does same. After it's hot the oil pressure gauge drops when idle down at red light. Oil pressure light doesn't come on.
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5th Gear
Joined: Jul 2017
Posts: 9
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From: the mojove desert
Hello to all 
Fellas' I have a 96" Twin Cam engine built in 2007. It has S&S cases, Andrews cams, everything else is HD. I must say that I'm not familiar with the Twin Cam engine. All of them that I look at have the oil pressure gauge in front of the engine, mine is towards the back where the feed, return and vent lines are, just like the Evo.
The pressure gauge reads zero, its been replaced with a new gauge and it reads zero as well.The oil flows free and speeds up when I twist the throttle. There's no noise at the top end and the bike been running like this for 10+ years (I bet the bike doesn't have 5000 miles on it)
I'm lost on this one. If somebody has and idea or maybe another website, please let me know.
Thank you
fish
Fellas' I have a 96" Twin Cam engine built in 2007. It has S&S cases, Andrews cams, everything else is HD. I must say that I'm not familiar with the Twin Cam engine. All of them that I look at have the oil pressure gauge in front of the engine, mine is towards the back where the feed, return and vent lines are, just like the Evo. The pressure gauge reads zero, its been replaced with a new gauge and it reads zero as well.The oil flows free and speeds up when I twist the throttle. There's no noise at the top end and the bike been running like this for 10+ years (I bet the bike doesn't have 5000 miles on it)
I'm lost on this one. If somebody has and idea or maybe another website, please let me know.
Thank you
fish
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