EVO All Evo Model Discussion

Oil lines

Thread Tools
 
Search this Thread
 
Old Jun 17, 2008 | 06:02 AM
  #1  
mulch63's Avatar
mulch63
Thread Starter
|
Road Master
Joined: Feb 2007
Posts: 849
Likes: 2
From: where i'm at
Default Oil lines

Is the oil return line on a 98 Heritage the rear most line of the&nbsp\\;three&nbsp\\;on the oil tank? In other words two are side by side the vent and feed. The third which is behind them the return?
&nbsp\\;
jim
 
Reply
Old Jun 17, 2008 | 08:12 AM
  #2  
twowheelsforever's Avatar
twowheelsforever
Tourer
Joined: May 2006
Posts: 467
Likes: 0
From:
Default RE: Oil lines

I'm not sure about a 98 heritage, but on my 93 Softail, the return is the right most line.&nbsp\\; Go to:
&nbsp\\;
http://www.twowheelsforever.com/how-...and_flush.html&nbsp\\;and enlarge the picture in step 8.
 
Reply
Old Jun 17, 2008 | 08:48 AM
  #3  
mulch63's Avatar
mulch63
Thread Starter
|
Road Master
Joined: Feb 2007
Posts: 849
Likes: 2
From: where i'm at
Default RE: Oil lines

My tank is a bit different. Only two in a row and one behind a bit.
 
Reply
Old Jun 18, 2008 | 11:08 PM
  #4  
eglideic's Avatar
eglideic
Road Master
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2008
Posts: 1,069
Likes: 27
From: Iowa
Default RE: Oil lines

&nbsp\\;It will have that information right there in your service manual.
&nbsp\\;Just look for it in the oil pumpn section.
 
Reply
Old Jun 19, 2008 | 08:38 AM
  #5  
twowheelsforever's Avatar
twowheelsforever
Tourer
Joined: May 2006
Posts: 467
Likes: 0
From:
Default RE: Oil lines

The pictures in the following links should help:
&nbsp\\;
http://www.steelthundercc.com/assets...%20routing.jpg
&nbsp\\;
http://www.bikernet.com/garage/PageV...asp?PageID=384
 
Reply
Old Jun 19, 2008 | 10:13 AM
  #6  
jokenroll's Avatar
jokenroll
Road Captain
Joined: Nov 2007
Posts: 517
Likes: 6
From: Ottawa, ON
Default RE: Oil lines

The pictures in the manual are not easy to understand. I also have a '93 softail manual, and spent considerable time still trying to figure it out, before I simply brought the tank to the shop.
So, here is the deal for the tank with 2 lines beside each other and one behind them:

The one behind is the main feed.
The one closer to you (the right one) is the vent.
The further one (the left one) is the return

And the one on the left side of the tank is obviously the drain.

Hope it helps.
 
Reply
Old Jun 19, 2008 | 10:35 AM
  #7  
twowheelsforever's Avatar
twowheelsforever
Tourer
Joined: May 2006
Posts: 467
Likes: 0
From:
Default RE: Oil lines

Also, just as an FYI, typically the vent and the return line are interchangeable.&nbsp\\; Having the return connected to the right one (closest to you) makes it easier if you are going to flush your crankcase oil during oil changes...
 
Reply
Old Jun 19, 2008 | 12:58 PM
  #8  
mulch63's Avatar
mulch63
Thread Starter
|
Road Master
Joined: Feb 2007
Posts: 849
Likes: 2
From: where i'm at
Default RE: Oil lines

Thanks friend. I figured it out. The vent and return was switched. i just followed the one coming from the filter.
&nbsp\\;
jim
 
Reply
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 Jun 19, 2008 | 01:03 PM
  #9  
mulch63's Avatar
mulch63
Thread Starter
|
Road Master
Joined: Feb 2007
Posts: 849
Likes: 2
From: where i'm at
Default RE: Oil lines

I know what you mean. The manual isn't as easy as you think. Well on this bike the two front ones are set up as vent and feed. The one behind is set up as the return. Followed it to the filter.
&nbsp\\;
jim
 
Reply
Old Jun 19, 2008 | 01:04 PM
  #10  
jokenroll's Avatar
jokenroll
Road Captain
Joined: Nov 2007
Posts: 517
Likes: 6
From: Ottawa, ON
Default RE: Oil lines

ORIGINAL: twowheelsforever

Also, just as an FYI, typically the vent and the return line are interchangeable.&nbsp\\;\\\\\\;\\\\\\\\\\\\\\; Having the return connected to the right one (closest to you) makes it easier if you are going to flush your crankcase oil during oil changes...
You are probably right. If you look inside, both (return and vent) terminate at the top, beside each other. One being bent down though. it might be the return, but go figure...

I have also read, that instead of removing the return hose, one can simply run it without the filter.
After collecting 1 qrt, stop the engine, install the filter and add 1 qrt. It is probably way messier though...
 
Reply



All times are GMT -5. The time now is 04:47 AM.

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