Harley Davidson Forums

Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Oil Pressure Fluctuating

Thread Tools
 
Search this Thread
 
Old Sep 24, 2013 | 07:20 PM
Share
  #1  
PappyUSMC's Avatar
PappyUSMC
Thread Starter
|
Tourer
Joined: Jan 2010
Posts: 254
Likes: 1
From: Fredericksburg, VA
Default Oil Pressure Fluctuating
2009 Ultra, 60K, no mods.

Running fine. Sounds fine.

Stopped at gas station. Attempted to start it up. Horrible grinding sound. Stopped. Tried again, and started trying to start. Stopped. Tried again, started no problem.

Happened twice in same day. After second time, I noticed while riding the Oil Pressure gauge was constantly going from 5 to 31.. even while at same speed for a good distance.

Bike running fine, not noticeably hotter. Oil Temp gauge sits at 190 as normal for 40 min from work to home.

Ideas????

Clogged oil filter?
 
Reply
0
Old Sep 24, 2013 | 07:39 PM
Share
  #2  
Neil's Avatar
Neil
Road Captain
15 Year Member
Photogenic
Joined: Jun 2006
Posts: 723
Likes: 62
From: Cape Cod, Ma.
Default
Crank could be scissoring and getting ready to eat your oil pump. Just a thought. Could also be a bad sender.

Neil
RDMC
 
Reply
0
Old Sep 24, 2013 | 07:39 PM
Share
  #3  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,552
Likes: 3,954
From: Vermont
Default
Even with the new tensioner system, at 60k I'd be checking them to be safe.
 
Reply
0
Old Sep 28, 2013 | 10:57 AM
Share
  #4  
PappyUSMC's Avatar
PappyUSMC
Thread Starter
|
Tourer
Joined: Jan 2010
Posts: 254
Likes: 1
From: Fredericksburg, VA
Default
Crank scissoring... not understanding that reference.....
 
Reply
0
Old Sep 28, 2013 | 11:16 AM
Share
  #5  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,552
Likes: 3,954
From: Vermont
Default
Crank shifts and causes excess runout.
 
Reply
0
Old Sep 28, 2013 | 12:57 PM
Share
  #6  
PappyUSMC's Avatar
PappyUSMC
Thread Starter
|
Tourer
Joined: Jan 2010
Posts: 254
Likes: 1
From: Fredericksburg, VA
Default
Ahh ok.... how do I determine if that is it, and how do I correct it?
 
Reply
0
Old Sep 28, 2013 | 03:22 PM
Share
  #7  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,552
Likes: 3,954
From: Vermont
Default
Would have to check crank runout. If excessive, cases would have to be split and crank trued and welded.
 
Reply
0

Trending Topics

Old Sep 28, 2013 | 03:24 PM
Share
  #8  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,552
Likes: 3,954
From: Vermont
Default
Could also be coincidental and the oil sending unit is faulty and has nothing to do with the noise. Noise as "grinding" when attempting to start could be starter clutch, issue with jack shaft and ring gear, etc.
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Sep 28, 2013 | 03:33 PM
Share
  #9  
Stiggy's Avatar
Stiggy
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2010
Posts: 17,548
Likes: 7,197
From: Oxford, Nc
Default
dawg is correct as usual...But don't take this lightly. The cam cover on the right hand side needs to be pulled and the cam plate, oil pump and cams removed. The camshaft is now exposed and the use of a dial indicator while cranking the engine determines how "out of round" the crankshaft is.

If that's the problem, you rebuild the motor.

Clink, clank grind on hot restarts is common on '07 and later Twin Cams and may have nothing to do with the oil pressure.

One way or the other it needs to be checked out soon.
 
Reply
0
Old Sep 28, 2013 | 08:50 PM
Share
  #10  
lakedrum03's Avatar
lakedrum03
Cruiser
Joined: Aug 2012
Posts: 134
Likes: 0
From: Uniontown, OH
Default
If it was in a cager I would say spun rod bearing. Not sure if that correlates to the bike world.
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 07:11 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE