Lifter Orientation

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Nov 24, 2007 | 05:28 PM

PhillHD1

Thread Starter

Stage I

Joined: Nov 2007

Posts: 1

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Lifter Orientation

I am in the middle of upgrading my 04 FLHRS to 95". I removed old lifters without noting orientation of oil holes. Nothing in the shop manual. Do the oil holes face the outside or inside of the motor? Thanks for the help.

Nov 24, 2007 | 05:38 PM

Harleypingman

Extreme HDF Member

Joined: Apr 2006

Posts: 10,449

Likes: 46

From: Roswell, GA

RE: Lifter Orientation

Page 3-41 of the 2004 HD Service Manual for Touring Models says:

"Install the hydraulic lifters in the crankcase bores with the flats facing forward and rearward. To preserve existing wear patterns, orientation of the oil hole (inboard or outboard) should have been noted during disassembly. To avoid damage, do not drop lifteronto cam lobes."

Nov 24, 2007 | 06:24 PM

Doc 1

Outstanding HDF Member

Joined: May 2007

Posts: 2,304

Likes: 31

From: Florida

RE: Lifter Orientation

It really doesn't matter but I see most of the lifters set in with the hole faced toward the cylinders.

Nov 26, 2007 | 06:35 PM

dcfatboy

Tourer

Joined: Jan 2006

Posts: 373

Likes: 26

From: Virginia

RE: Lifter Orientation

I am finishing up my AMS 96" build. The holes in all my lifters were facing away from the cylinders. They were all facing the right side of the bike.

Good luck.

Nov 30, 2007 | 07:38 PM

hdfatboy54

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Joined: Feb 2006

Posts: 63

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From:

RE: Lifter Orientation

I have an 02 fatboy and the holes were facing outwards. In other words you should see the holes as you are putting them in.

Nov 30, 2007 | 08:51 PM

mtclassic

Outstanding HDF Member

Joined: Oct 2007

Posts: 3,437

Likes: 15

RE: Lifter Orientation

The last 3 I have done also faced away from the motor. I know the manual says the holes face in but that is not how they are being put in at the factory.

Nov 30, 2007 | 08:58 PM

dawg

Seasoned HDF Member

Joined: Jun 2006

Posts: 28,552

Likes: 3,954

From: Vermont

RE: Lifter Orientation

It doesn't really matter, on my 04 they were all facing outward. Having said that, depending on the mileage and assuming you are doing cams with this, I hope you are replacing the lifters anyway.

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Dec 1, 2007 | 02:33 AM

darkdyna06

Tourer

Joined: Dec 2006

Posts: 314

Likes: 0

From: North Hills California

RE: Lifter Orientation

If the hole is placed inside of the large radial groove machined into the lifter body, it makes no difference which way you put it in. Some automotive rollers are made with "edge oriface" oiling where the groove is eliminated and oil is only passed through a small hole while the cam is on, or just off the base circle. This type needs to be aligned to function properly, and I think it was designed to keep more oil in the lower end, but these are only used in extreme applications and would have no buissiness in a harley.