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:

small drain screw on engine case

Thread Tools
 
Search this Thread
 
Old Mar 20, 2010 | 08:41 PM
Share
  #1  
tom lipke's Avatar
tom lipke
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 103
Likes: 2
Default small drain screw on engine case
My friend hsa an 04 ultra and thought he was taking out the tranny drain plug and mistakenly unscrewed a small alan head screw on the bottom of the engine case on the right side of the case. about a half cup of what looked like engine oil drained out. What the heck was that ??
Thanks
 
Reply
0
Old Mar 20, 2010 | 08:46 PM
Share
  #2  
soos's Avatar
soos
Grand HDF Member
Joined: Sep 2005
Posts: 4,890
Likes: 73
From: MA
Default
Which one did he pull?
 
Attached Thumbnails small drain screw on engine case-drainplugsfordummies.jpg  
Reply
1
Old Mar 20, 2010 | 09:03 PM
Share
  #3  
tom lipke's Avatar
tom lipke
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 103
Likes: 2
Default
the one you labeled "primary, 1 of 2. so when you drain the primary with the drain plug on the primary case you do not nee to touch the other one. what is it there for?
thanks
 
Reply
0
Old Mar 20, 2010 | 09:18 PM
Share
  #4  
soos's Avatar
soos
Grand HDF Member
Joined: Sep 2005
Posts: 4,890
Likes: 73
From: MA
Default
This is his primary drain plug. I honestly don't know why the other is there or what it is there for.
 
Attached Thumbnails small drain screw on engine case-primary-drain-plug.jpg  
Reply
0
Old Mar 20, 2010 | 10:16 PM
Share
  #5  
riteway's Avatar
riteway
Extreme HDF Member
Joined: Apr 2008
Posts: 13,023
Likes: 989
From: Just Outside Chicago
Default
Originally Posted by soos
Which one did he pull?
LMAO..Soos i new that was coming!!!!!!
 
Reply
0
Old Mar 20, 2010 | 10:45 PM
Share
  #6  
soos's Avatar
soos
Grand HDF Member
Joined: Sep 2005
Posts: 4,890
Likes: 73
From: MA
Default
Originally Posted by riteway
LMAO..Soos i new that was coming!!!!!!
I was waitin' on you rw but you took too long. Another play date with the ol' lady?
 
Reply
0
Old Mar 20, 2010 | 10:51 PM
Share
  #7  
riteway's Avatar
riteway
Extreme HDF Member
Joined: Apr 2008
Posts: 13,023
Likes: 989
From: Just Outside Chicago
Default
Originally Posted by soos
I was waitin' on you rw but you took too long. Another play date with the ol' lady?
Yep.you caught me..Never enough play dates!!!! XOXOXO....;-)... ..
 
Reply
0

Trending Topics

Old Mar 21, 2010 | 11:52 AM
Share
  #8  
canuck pride's Avatar
canuck pride
Cruiser
Joined: Jan 2009
Posts: 126
Likes: 0
From: Ont Canada
Default
Originally Posted by tom lipke
My friend hsa an 04 ultra and thought he was taking out the tranny drain plug and mistakenly unscrewed a small alan head screw on the bottom of the engine case on the right side of the case. about a half cup of what looked like engine oil drained out. What the heck was that ??
Thanks
I believe that was where they plum in the engine temp gauge.
 
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 Mar 21, 2010 | 01:22 PM
Share
  #9  
Lonewolf176's Avatar
Lonewolf176
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2007
Posts: 2,458
Likes: 671
From: Vancouver Island B.C.
Default
It's the drain plug for the crankcase. You pull it to check for sumping. 1/2 cup oil is good. The one to use for your oil temp gauge is the one marked "crank" in soos's picture.
 
Reply
0
Old Nov 26, 2022 | 04:44 PM
Share
  #10  
Ddjjss's Avatar
Ddjjss
6th Gear
Joined: Nov 2022
Posts: 14
Likes: 1
From: ct
Default
Originally Posted by tom lipke
My friend hsa an 04 ultra and thought he was taking out the tranny drain plug and mistakenly unscrewed a small alan head screw on the bottom of the engine case on the right side of the case. about a half cup of what looked like engine oil drained out. What the heck was that ??
Thanks
did you ever find out

Watt those bolts where. I did the same thing but I can’t unscrew mine I’m thinking it’s for the oil son that sits there in the bottom of the crank case. Maybe you could drain it out that way
 
Last edited by Ddjjss; Nov 26, 2022 at 04:45 PM.
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 11:28 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