Uploaded June 2026 | Updated September 2026, 3 weeks ago
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Last week, this 1979 Triumph Bonneville lost oil pressure immediately after an oil change.
After working through the diagnostic process, inspecting the oil system, checking components, and narrowing down the possibilities, it's finally time to put everything back together and see if we solved the problem.
In this video, I install the replacement parts, reassemble the oil system, verify oil pressure, and confirm the repair.
Sometimes the hardest part of a repair isn't replacing parts—it's figuring out which parts actually need replacing.
In this video:
• Triumph T140 oil system repair
• Oil pump replacement
• Oil pressure verification
• Reassembly and testing
• Confirming the fix
• Follow-up to the oil pressure diagnosis
►► If you want help working through problems like this on your own bike, that’s exactly what we do inside the Inner Circle during live Q&A sessions.
themotorcyclemd.com/mcmd-inner-circle-member
►► Model Specific Carburetor Teardown and Cleaning Tutorials
themotorcyclemd.com/premium-courses
►► If you need guidance on fixing, repairing or diagnosing a problem with your bike.
themotorcyclemd.com/consult-submission
Channel memberships are a simple way to support the channel and keep this content coming. I appreciate you.
youtube.com/channel/UCmpL0CxrbzbsD6G0GE0P_DQ/join
Last week, this 1979 Triumph Bonneville lost oil pressure immediately after an oil change.
After working through the diagnostic process, inspecting the oil system, checking components, and narrowing down the possibilities, it's finally time to put everything back together and see if we solved the problem.
In this video, I install the replacement parts, reassemble the oil system, verify oil pressure, and confirm the repair.
Sometimes the hardest part of a repair isn't replacing parts—it's figuring out which parts actually need replacing.
In this video:
• Triumph T140 oil system repair
• Oil pump replacement
• Oil pressure verification
• Reassembly and testing
• Confirming the fix
• Follow-up to the oil pressure diagnosis
►► If you want help working through problems like this on your own bike, that’s exactly what we do inside the Inner Circle during live Q&A sessions.
themotorcyclemd.com/mcmd-inner-circle-member
►► Model Specific Carburetor Teardown and Cleaning Tutorials
themotorcyclemd.com/premium-courses
►► If you need guidance on fixing, repairing or diagnosing a problem with your bike.
themotorcyclemd.com/consult-submission
