Shovelhead Bottom End Rebuild — Oil Pump Case Mods, Fitment Issues & Final Install | Marley Pt 5

This week we push Marley’s Shovelhead Bottom End rebuild forward with one of the most confusing parts of vintage Harley work — oil pump case modifications and pump fitment issues that every builder eventually faces. Please Note : As was pointed out to me by a subscriber, I made a mistake on the thread types in the video. Early Threads are 1/4' X 24 TPI and the Later thread types are 1/4" X 20 TPI. Thank you for pointing it out @maxheadflow . I got confused when talking about them. Like, Subscribe Comment and Share us out there! If you’re rebuilding a Shovelhead, Evolution, or early Harley-Davidson, 4 or 5 speeds, these videos will walk you through the exact issues you’ll face — and how to solve them without the fluff. What you will Learn in this Video: . Oil Pump Case Modification & drilling the pressure‑relief hole . How the Harley oiling system actually works . Oil pump year identification . Thread identification by generation . Part Number Identification . How to Install Oil Pump . How to Modify Engine Case . Checking Main Bearing End Play . Flywheel bearing installation Chapters: 00:00 Coming Up 00:45 Intro 01:09 Motor Information 01:33 S&S Jig Part Number 02:34 Explanation for Drilling Relief Hole 02:45 Pump Years Identification 03:08 Oiling System Explanation 05:54 S&S Oil Pump Multiple Modificaton Tool 06:17 Part Numbers for Only One Modification Tool 06:42 Thread Identification Years 07:25 Verify Hole Position 08:13 Special Long Tip Markers 09:21 Drilling Pressure Relief Hole 12:42 Side by Side Case Comparison 12:53 Installing Oil Pump 14:15 Installation Problem 15:12 Case Interference 16:00 Machining Case 16:47 Test Fit Oil Pump 17:53 Still Some Intereference 18:58 Oil Pump Final Install 19:04 Gear Identification Marks 21:50 Washer Interference 22:31 Drive Gear Key & Clip Install 25:48 Drive Gear Free Spinning Visual Conformation 26:25 Main bearing End Play Check 31:05Install Flywheel Bearings 32:23 Install Left Side Case 33:16 Outro #harleyshovelhead#vintagemotorcycles#shoptech ----------------------------------------------------------------- If you enjoyed the content or found it helpful, you can “Buy me a Coffee” using the link below. Your support helps keep the channel going — thank you! https://www.buymeacoffee.com/itsmytim... Subscribe for More Harley Rebuilds Thanks to everyone who shows up, shares knowledge, and keeps vintage Harley‑Davidsons on the road. Subscribe for more Shovelhead, Panhead, Knucklehead, and Evo rebuilds:    / @itsmytimeletsgo   -------------------- Shout Outs - Channels Worth Checking Out: Hippies Chopper Corner:    / @hippieschoppercorner   Slick Heads Custom Cycles:    / @slickheadcustomcycles   This Old Chopper:    / @thisoldchopper   -------------------- Some tools and products that I use: Emanualonline (Get your manual): https://shrsl.com/4hlm3 Gooloo Tire Inflator (Amazon.ca): https://amzn.to/3ZaWaYs CASOMAN Impact Socket Set (Amazon.ca): https://amzn.to/4ga99jZ Accusize Dial Bore Gauge Set (Amazon.ca): https://amzn.to/3CRphZm VOTOER Micro Pencil Die Grinder (Amazon.ca): https://amzn.to/3CKQzR2 -------------------- Disclaimer: Links included in this description may be affiliate links. If you purchase products using the links included, I may receive a commission; however, there is NO additional charge to you. If you opt to use anything I share, you do so at YOUR OWN RISK and take full responsibility for the outcome. Any advice and information shared on my channel is general only and does not take into account your particular circumstances and needs. Thank You! #HarleyDavidsonShovelhead #MotorcycleRestoration #harleyrockerboxrebuild