M8 Cam Install Step by Step UPDATED w/New Images

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Feb 9, 2019 | 06:04 PM

#11

Bumpandrun

Stellar HDF Member

Joined: Jan 2013

Posts: 2,747

Likes: 419

From: Vermont

Quote:

Originally Posted by GlidingJoe

Stych listed a part number 25566-06, that is the Gear Drive Retention Kit which are the Sprocket Bolts, (which should be replaced as well) The Cam Spacer Kit # is 25928-06.. Just a heads up if your ordering.

bought them yesterday and only 6 bucks! Lmao.....too cheap not to do

Nov 22, 2023 | 09:56 AM

#12

BiggDeesporster

Intermediate

Joined: Jan 2023

Posts: 48

Likes: 20

From: Huntington Beach, CA

Cleaning

What do you clean the oil pump with before applying the assembly oil?

Nov 24, 2023 | 07:27 PM

#13

Sparkules

Tourer

Joined: Feb 2018

Posts: 357

Likes: 205

From: Eastern Washington USA

RE: Ordering the upgraded pump kit with the updated housings, new design scavenge gearotor, rear seal. The Tech Bulletin shows a feed gearotor as part of the kit, the parts microfiche show the pump kit number, then “also order …….. “. This “also order” is the feed gearotor part number. So, does the kit 62400247 come with both the new scavenge gearotor AND a feed gearotor ? If not, just reuse the existing feed gearotor? Looks to me the feed gearotor is the same part number not superseded.

Last edited by Sparkules; Nov 24, 2023 at 07:28 PM. Reason: Fix part number

Nov 25, 2023 | 08:56 AM

#14

Tharber

Tourer

Joined: Feb 2009

Posts: 343

Likes: 224

From: Viera, FL

It would be nice if FM included push rod tubes with their cam kits.
TH

Nov 25, 2023 | 10:04 AM

#15

Fireball Jack

Stellar HDF Member

Joined: Oct 2015

Posts: 2,681

Likes: 851

From: Puyallup, wa

Quote:

Originally Posted by Tharber

It would be nice if FM included push rod tubes with their cam kits.
TH

Do their push rods need them?

Nov 25, 2023 | 10:10 AM

#16

bradsULtd

HDF Community Team

Joined: Mar 2008

Posts: 1,892

Likes: 552

From: NH

Quote:

Originally Posted by Sparkules

Kit P/N 62400247 includes:

p/n: 62400126 Gerotor Assy, Feed

p/n: 62400238 Oil Pump Assy, Oil

p/n: 62400245 Oil Pump Assy, Cover

I don't think these p/n's have been superceded and are still accurate...

Nov 25, 2023 | 01:46 PM

#17

Mchad

Club Member

Joined: Dec 2014

Posts: 10,734

Likes: 3,755

From: SWFL

Quote:

Originally Posted by Fireball Jack

Do their push rods need them?

Nope. Using them in two bikes. Twin cam and M8. No issues with stock tubes.

Nov 25, 2023 | 03:03 PM

#18

MCRD'71

Road Master

Joined: Oct 2021

Posts: 1,033

Likes: 543

From: SC

Quote:

Originally Posted by fuelmoto

We put together an updated Cam Installation article for H-D Milwaukee Eight engine, the previous thread we posted back in 2016 no longer has images due to a server hosting issue. The full article can also be found on the Fuel Moto University site along with other technical write ups.

In this article we will outline what is involved in a cam swap in the H-D Milwaukee Eight engine. This is a very straight forward procedure. We will be covering the complete step by step install using a bolt in replacement cam using quick install adjustable pushrods, in this example we will be re-using the stock lifters. The bike is a Road Glide with 107" M8 air cooled engine.

Here is the motor ready for disassembly, we've removed the complete exhaust system, air cleaner, and cam cover.

In this application we will not be re-using the factory pushrods, we are using Quick Install style adjustable pushrods. THe image below shows cutting the factory pushrods with a bolt cutters and removing them. Do not use a cutoff wheel or grinder, use a bolt cutter which makes a clean cut and eliminates (or highly reduces) the chances of any particulates making their way into the motor.

Remove the cam cover. Here is a close up image of the camchest. Next remove the cam chain tensioner, sprockets & chain, then completely remove the cam plate leaving the oil pump in place in the engine case.