Danny's Engineportal
@dannysengineportal.bsky.social
Danny's Engineportal is an online platform and resource for engine enthusiasts, offering guides, troubleshooting, and technical details on engine repair, rebuilding, basic machining, testing, and diagnostics.
Website https://dannysengineportal.com/
Website https://dannysengineportal.com/
Carbon deposits on the back of intake valves are especially common in Gasoline Direct Injection (GDI) engines. They occur because fuel doesn't wash over them, allowing oil vapors, blowby gases, and condensation to stick and harden.
January 4, 2026 at 9:59 PM
Carbon deposits on the back of intake valves are especially common in Gasoline Direct Injection (GDI) engines. They occur because fuel doesn't wash over them, allowing oil vapors, blowby gases, and condensation to stick and harden.
Engine Will Not Start, But Fuel, Spark And Compression Are Good dannysengineportal.com/engine-will-...
Engine Will Not Start, But Fuel, Spark And Compression Are Good
We focus on DIY engine repair, offering guidance on engine rebuilding, basic machining, technical details, diagnostic troubleshooting, and testing with potential solutions.
dannysengineportal.com
January 1, 2026 at 6:17 PM
Engine Will Not Start, But Fuel, Spark And Compression Are Good dannysengineportal.com/engine-will-...
Distributorless Ignition System - Get to Know the Components dannysengineportal.com/distributorl...
Distributorless Ignition System - Get to Know the Components
We focus on DIY engine repair, offering guidance on engine rebuilding, basic machining, technical details, diagnostic troubleshooting, and testing with potential solutions.
dannysengineportal.com
December 17, 2025 at 8:36 PM
Distributorless Ignition System - Get to Know the Components dannysengineportal.com/distributorl...
To test a car relay, use a multimeter to check the coil resistance (pins 85 & 86) for an open/short, then apply 12V power to those pins to listen for a "click," indicating the internal switch activates. Finally, check continuity between the load terminals (pins 30 & 87) to ensure the switch closes.
December 15, 2025 at 8:49 PM
To test a car relay, use a multimeter to check the coil resistance (pins 85 & 86) for an open/short, then apply 12V power to those pins to listen for a "click," indicating the internal switch activates. Finally, check continuity between the load terminals (pins 30 & 87) to ensure the switch closes.
An automotive smoke machine is a diagnostic tool that injects smoke (vaporized oil/fluid) into a vehicle's sealed systems (EVAP, intake, exhaust, vacuum) to visually detect leaks.
December 14, 2025 at 2:14 AM
An automotive smoke machine is a diagnostic tool that injects smoke (vaporized oil/fluid) into a vehicle's sealed systems (EVAP, intake, exhaust, vacuum) to visually detect leaks.
Sticking Valves Because Of Carbon Deposits And Rich Fuel Mixture dannysengineportal.com/sticking-val...
Sticking Valves Because Of Carbon Deposits And Rich Fuel Mixture
Sticking valves can be a sign of carbon deposits building up. Learn how they form and how to prevent them, or at least slow them down.
dannysengineportal.com
December 12, 2025 at 8:16 PM
Sticking Valves Because Of Carbon Deposits And Rich Fuel Mixture dannysengineportal.com/sticking-val...
Engine bearing damage, caused by lubrication failure, contamination, or wear, leads to knocking noises, low oil pressure, poor performance, and eventual catastrophic engine failure. Symptoms include metallic rattling/knocking sounds, shaking, increased heat, and metal shavings in the oil.
December 9, 2025 at 12:55 AM
Engine bearing damage, caused by lubrication failure, contamination, or wear, leads to knocking noises, low oil pressure, poor performance, and eventual catastrophic engine failure. Symptoms include metallic rattling/knocking sounds, shaking, increased heat, and metal shavings in the oil.
Reduced Engine Power Warning Light - What To Do And Why? dannysengineportal.com/reduced-engi...
Reduced Engine Power Warning Light - What To Do And Why?
Whether its, reduced engine power, limp, fail safe, limp home mode, they all mean the same thing. Your Vehicle performance, has been reduced.
dannysengineportal.com
December 7, 2025 at 5:18 PM
Reduced Engine Power Warning Light - What To Do And Why? dannysengineportal.com/reduced-engi...
Engine cylinder deglazing is the process of roughening smooth/glazed cylinder walls with a hone to create a crosshatch pattern, which helps new piston rings seat, improves oil retention, and restores compression. It's done during engine rebuilds to ensure proper lubrication and sealing.
December 6, 2025 at 1:55 AM
Engine cylinder deglazing is the process of roughening smooth/glazed cylinder walls with a hone to create a crosshatch pattern, which helps new piston rings seat, improves oil retention, and restores compression. It's done during engine rebuilds to ensure proper lubrication and sealing.
How To Do A Cylinder Leak Down Test - With Or Without A Tester dannysengineportal.com/how-to-do-a-...
How To Do A Cylinder Leak Down Test - With Or Without A Tester
A cylinder leak down test, can tell you if the loss of compression is from, worn rings, burned or stuck open valves or a leaking head gasket.
dannysengineportal.com
December 2, 2025 at 8:43 PM
How To Do A Cylinder Leak Down Test - With Or Without A Tester dannysengineportal.com/how-to-do-a-...
Check Engine Light (CEL) - What Can Cause It To Come On dannysengineportal.com/check-engine...
Check Engine Light (CEL) - What Can Cause It To Come On
So, the Check Engine Light (CEL), is just a light, with no information, telling you that there is a problem, somewhere in your vehicle.
dannysengineportal.com
November 28, 2025 at 5:42 PM
Check Engine Light (CEL) - What Can Cause It To Come On dannysengineportal.com/check-engine...
Cylinder Head Cracking - Overheating Is The Most Common Cause dannysengineportal.com/cylinder-hea...
Cylinder Head Cracking - Overheating Is The Most Common Cause
Cylinder head cracking, can cause catastrophic damage to your engine. But, most causes, are actually, relatively simple and easy to prevent.
dannysengineportal.com
November 24, 2025 at 6:59 PM
Cylinder Head Cracking - Overheating Is The Most Common Cause dannysengineportal.com/cylinder-hea...
Valve stem seals function to control oil consumption in an engine by allowing a controlled amount of oil to lubricate the valve stem as it moves. They prevent excessive oil from leaking into the combustion chamber and ensure proper lubrication to prevent wear.
November 24, 2025 at 12:58 AM
Valve stem seals function to control oil consumption in an engine by allowing a controlled amount of oil to lubricate the valve stem as it moves. They prevent excessive oil from leaking into the combustion chamber and ensure proper lubrication to prevent wear.
The main downsides of direct injection include potential for carbon buildup on intake valves, which can reduce performance. Direct injection systems are also more complex and expensive to manufacture and repair, and can have issues with engine noise and fuel system clogging.
November 24, 2025 at 12:43 AM
The main downsides of direct injection include potential for carbon buildup on intake valves, which can reduce performance. Direct injection systems are also more complex and expensive to manufacture and repair, and can have issues with engine noise and fuel system clogging.
A cylinder that is too smooth is a problem because it won't properly hold oil, which is needed for proper lubrication and sealing by the piston rings. A proper cylinder wall has a "crosshatch" pattern created by honing, which retains oil in tiny pockets.
November 21, 2025 at 1:48 AM
A cylinder that is too smooth is a problem because it won't properly hold oil, which is needed for proper lubrication and sealing by the piston rings. A proper cylinder wall has a "crosshatch" pattern created by honing, which retains oil in tiny pockets.
Fuel Pump Issues - Excessive Heat - Contamination, Dirt, Rust dannysengineportal.com/fuel-pump-is...
Fuel Pump Issues - Excessive Heat - Contamination, Dirt, Rust
Fuel pump issues can affect your engine's fuel flow, leading to difficult starting, jolts & stutters, engine surging, & poor fuel mileage.
dannysengineportal.com
November 19, 2025 at 8:34 PM
Fuel Pump Issues - Excessive Heat - Contamination, Dirt, Rust dannysengineportal.com/fuel-pump-is...
Vacuum Leaks - How To Quickly Find Them In 5 Easy Steps dannysengineportal.com/vacuum-leaks...
Vacuum Leaks - How To Quickly Find Them In 5 Easy Steps
Vacuum leaks pull in outside air. The fuel air ratio is altered, to a lean condition. The computer says send more fuel, causing over fueling.
dannysengineportal.com
November 14, 2025 at 5:26 PM
Vacuum Leaks - How To Quickly Find Them In 5 Easy Steps dannysengineportal.com/vacuum-leaks...
Serpentine belts fail from normal wear (cracking, fraying, glazing) due to heat and friction, but also from external factors like fluid leaks (oil, coolant) that degrade the rubber, or issues with components like a bad tensioner or misaligned pulleys, causing slipping, noise, or sudden breakage.
November 14, 2025 at 1:17 AM
Serpentine belts fail from normal wear (cracking, fraying, glazing) due to heat and friction, but also from external factors like fluid leaks (oil, coolant) that degrade the rubber, or issues with components like a bad tensioner or misaligned pulleys, causing slipping, noise, or sudden breakage.
So, look at that, even roller camshafts fail!
November 11, 2025 at 10:03 PM
So, look at that, even roller camshafts fail!
Giving your old pistons new attitude!
November 10, 2025 at 6:56 PM
Giving your old pistons new attitude!
Repeat Engine Failures From Not Diagnosing The Original Problem dannysengineportal.com/repeat-engin...
Repeat Engine Failures From Not Diagnosing The Original Problem
Don't just replace parts without knowing why they failed. Avoid repeat engine failures with, the right diagnosis the first time.
dannysengineportal.com
November 9, 2025 at 10:33 PM
Repeat Engine Failures From Not Diagnosing The Original Problem dannysengineportal.com/repeat-engin...