Injecting diesel BTDC means the air-fuel mixture can burn completely before the piston reaches the top. If the advance is too far ahead, it can cause the mixture to push on the pistons as they are moving upward, making them knock together and damage the engine. This is also known as detonation. Changes that occur in your machine depend on the type of marine engine and its age. Advancing the timing on a diesel can affect various aspects of your engine, such as:. Injection delay is the interval of time from when injection begins to the start of combustion — meaning it directly relates to timing.
The period of suspension involves both physical and chemical intervals that coincide. The breakdown of atoms, vaporization and air-fuel mixing delays the process, as does the combustion reaction.
When you advance the timing, it decreases the injection delay, but when you retard the injection, it increases the interval.
Setting the ideal injection timing is critical to maintain and boost the performance of your engine. Diesel that enters too soon or too late into the cylinder can result in excessive vibrations or severe damage to components. How you adjust the injection timing of the injection pump also depends on the type of marine engine you have and its age. Before making any adjustments, make sure the cold start cable is in, and the camshaft drive belt has proper tension. The engine control module is easier to adjust in newer engines compared to older versions.
But if not, you can rely on a mechanic to make their way to the EMC and plug in a Flash tool which will reprogram the computer system. For older components, there are other parts you can alter to change the timing. One of the more straightforward ways to convert the timing is to adjust the fuel injection pump. All you have to do is rotate the pump with a screwdriver and socket wrench — standard tools you can find in your garage or toolbox.
You need to make sure you accurately measure the timing adjustment with a timer meter or probe for reading. Any small movement of the pump will cause massive timing changes. Avoid drastic adjustments and stick to minor alterations for the right modifications. Use a socket wrench on the front camshaft bolt to hand-turn the engine clockwise until the first cylinder is at TDC.
Both the intake and exhaust valves should be closed, and the TDC mark should be aligned. Install a dial indicator by removing the timing-check plug and ensure it reads at about 2. Turn the crankshaft counterclockwise until the indicator stops, then zero the dial. Loosen the injection pump to allow the diesel to enter the cylinders sooner and vice versa for retarding.
Once you have it at an appropriate position, tighten the mounting bolts. Rotate the marine engine through several revolutions and repeat the procedure to ensure you made proper adjustments. They will point you in the right direction of how much to alter your timing to fit your machine. This change allows you to make modifications when the valves and injectors trigger.
You may need to work with an experienced mechanic or technician because a decent amount of mathematical calculations go into this process.
One of the cheaper options is to get new cam gaskets and followers. Changing either of the gears can result in similar adjustments that you would see from replacing the camshaft.
Installing thicker or thinner gaskets will affect the cam lobes and followers when they come in contact. Therefore, the components can affect how the valve train activates. With 28 years of experience in the industry, Diesel Pro Power works hard to place you at the forefront of our operations. Browse our inventory of marine engine components or reach out to our intuitive customer care team by calling us at January 24, Injection Timing — What You Need to Know The internal components of a marine engine are complex and rely on precise movements to deliver efficient and reliable power.
The Internal Combustion Process The internal combustion process is what generates energy for the pistons to move, leading to a chain of events that propel a motor.
What Is Injection Timing? Reasons to Adjust Injection Timing You can adjust injection timing if your marine engine is past its prime running days or has had work done. Over time, the injection pump timing retards, resulting in problems, such as: — Difficult starting — Hot engine temperatures — Poor fuel economy — Smoke during startups and acceleration Making the proper adjustments can get the system back to its original performance levels or better.
Advantages of Adjusting Diesel Engine Injection Timing Systems Because a timing component delivers diesel under intense pressures, the parts and materials can withstand high levels of stress and heat. Advancing the timing on a diesel can affect various aspects of your engine, such as: — Engine longevity — Fuel consumption — Ignition timing — Fuel to air ratio — Engine power — Injection delay Injection delay is the interval of time from when injection begins to the start of combustion — meaning it directly relates to timing.
How to Adjust Injection Timing How you adjust the injection timing of the injection pump also depends on the type of marine engine you have and its age. Mouse over to Zoom - Click to enlarge. Have one to sell? Sell now - Have one to sell? Shop with confidence. Get the item you ordered or get your money back. Learn more - eBay Money Back Guarantee - opens in a new window or tab.
Seller information. Contact seller Contact seller. See other items See other items. Details about OTC diesel injector timing tool set cummins. Item Information Condition:. Time left: 5d 17h The listing has ended. Bid Amount. Place bid Resume bidding , if the page does not update immediately.
Buy It Now. The item you've selected was not added to your cart. Add to Watchlist Unwatch. Watch list is full. Longtime member. May not ship to Germany - Read item description or contact seller for shipping options.
See details. Located in:. Churubusco, New York, United States. This amount is subject to change until you make payment. For additional information, see the Global Shipping Program terms and conditions - opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees.
For additional information, see the Global Shipping Program terms and conditions - opens in a new window or tab. Seller does not accept returns See details. See terms and apply now See terms and apply now for PayPal Credit - opens in a new window or tab. Any international shipping is paid in part to Pitney Bowes Inc. Learn More - opens in a new window or tab International shipping and import charges paid to Pitney Bowes Inc.
Learn More - opens in a new window or tab Any international shipping and import charges are paid in part to Pitney Bowes Inc. Learn More - opens in a new window or tab Any international shipping is paid in part to Pitney Bowes Inc. Learn More - opens in a new window or tab. Sponsored items customers also bought. New New New. Last one Last one Last one. Report item - opens in a new window or tab. Seller assumes all responsibility for this listing.
Item specifics. New other see details. No Warranty. Custom Bundle:.
0コメント