Dragonman's Working on Motors for Over 50 Years

Published on November 1, 2024
Duration: 11:39

Dragonman details his 'rebuild your own motor' service, emphasizing cost savings for customers. The process involves glass beading heads, installing new seals, nitrated valves, and performing two-angle valve jobs. Lower end work includes boring cylinders, new bearings, balancing flywheels, and assembly. He also covers transmission rebuilds, Sportster and 45 motor work, and provides crucial advice on priming the oil pump after a rebuild to prevent startup damage. Dragonman has over 56 years of experience in motor rebuilding and machine work.

Quick Summary

Dragonman's 'rebuild your own motor' service includes glass beaded heads with new seals and nitrated valves, bored cylinders with specific pistons and rings, and a rebuilt lower end with new bearings and balanced flywheels. Crucially, he emphasizes priming the oil pump before starting a rebuilt engine by shooting oil into the breather line while cranking to prevent damage.

Chapters

  1. 00:01Introduction to Engine Rebuilds
  2. 00:21Top End Rebuild Details
  3. 00:30Lower End Rebuild Details
  4. 01:31Transmission Rebuild Service
  5. 01:51Lower End Only Rebuild
  6. 02:16Sportster and 45 Motor Work
  7. 02:27Dual Spark Plug Head Example
  8. 02:47Shipping Tips for Motors
  9. 03:15Flywheel Shaving and Balancing
  10. 03:46Stroker vs. Stock Pistons
  11. 04:37Timing Mark Differences (Pre/Post 1977)
  12. 05:44Evolution Motor Lifter Adjustment
  13. 06:19Solid Lifter Adjustment
  14. 06:53Hydraulic Lifter Adjustment Technique
  15. 07:39Demonstration of Rebuilt Motor
  16. 08:37Motor Performance and Revving
  17. 09:13Post-Rebuild Tightening Procedure
  18. 09:56Pushrod Adjustment and Oil Pressure
  19. 10:19Priming the Oil Pump
  20. 10:55Contact Information and Services

Frequently Asked Questions

What are the key components of Dragonman's 'rebuild your own motor' service?

Dragonman's service includes glass beaded heads with new Amco guide Teflon seals and nitrated valves, a two-angle valve job, bored cylinders with 8.5:1 compression pistons and Hastings rings, and a top-end gasket set. The lower end gets new bearings, races, and balanced flywheels.

How does Dragonman advise on shipping motorcycle engines for rebuild?

Dragonman recommends avoiding UPS or FedEx shipping stores because they add a 20% markup. Instead, he advises customers to bring their motors directly to the shipping terminal to save money.

What is the critical step after rebuilding a motorcycle engine before starting it?

It is crucial to prime the oil pump before starting a rebuilt engine. This involves using an oil can to shoot oil into the breather line while someone turns the motor over to remove air bubbles and ensure lubrication.

What is the difference in timing mark orientation on Harley-Davidson flywheels before and after 1977?

Before 1977, the timing mark slash on the flywheel was for the front cylinder. From 1977 onwards, the orientation switched, and the slash is for the rear cylinder, with the front cylinder hole in a different position.

What is Dragonman's experience in motorcycle engine rebuilding?

Dragonman states he has been working on motors and transmissions for over 56 years, indicating extensive experience and expertise in the field of motorcycle engine rebuilding and machine work.

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