Cat 3116 problems. Caterpillar 3116 hard starting problem Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread :: View next thread Forums List -> Machinery Talk Message format Explore common problems with the Caterpillar 3116 marine engine, including service bulletins, statistics, and maintenance tips. Aug 17, 2025 · Discover common Caterpillar 3116 engine problems in bucket trucks, including troubleshooting tips and maintenance advice to keep your engine running smo 3116 questions. He's checked the fuel/water The Boating Forum - Cat 3116 the good and bad - I am looking at boats with Cat 3116 300HP motors. Sometimes a sight glass in the return line will show compression bubbles if the seats are leaking. A 1993 Topkick with a 3116 CAT engine is experiencing difficulty starting every morning. How loud are they and how bad do they smoke, I am spoiled by common rail motors with under water exhaust. If a diesel engine is experiencing low power output, there could be several reasons for this issue. The 3116 has brass injector sleeves. The truck will only run if you pump up the hand 3116 Cat Fuel System Diagram: Understanding Your Engine’s Lifeline 3116 cat fuel system diagram is a crucial reference for anyone working with or maintaining the Caterpillar 3116 engine. Part number 293-4068. It will be a long drawn out story, but I am trying to give as much info as possible. Caterpillar 3116 diesel troubleshooting: The main problems and ways to fix it 3116 and 3126 Truck Engines Problem Too Much Exhaust Smoke At Normal Operating Temperatures (White/Black Or Blue Smoke) A. Oct 15, 2025 · Explore common Caterpillar 3116 engine problems, their causes, recall campaigns, and owner insights for better maintenance. Diagnosing and resolving the problem will require a systematic approach. Over time we have pinpointed the recurring themes and issues that are often reported as the reason someone would wish to replace their Caterpillar 3116. The engine not shutting off is often caused by a faulty stop solenoid, which controls fuel flow to the engine. Similar weight. Need real world insight. Failure of the oil cooler core: Understanding common 3116 engine problems, troubleshooting them effectively, and performing necessary repairs can help keep your engine running smoothly and efficiently. Any thoughts? I'm leaning a bit towards #2 as I've found the off road ability to be a bit pathetic compared to an M35. The other day I ran it for about 45 minutes, turned it off for about 2 hours, and then it wouldn't turn over. Enhance performance and efficiency today! Alright, i'm trying to help my uncle trouble shoot his no start problem on the above truck. I did some research on internet, and it seems like Cat 3116 engine has such a bad reputation out there. 3116 and 3126 Truck Engines Problem Low Power Diesel engines are known for their power and torque, but they can also experience low power problems. Jun 12, 2023 · So, any 3116 engines with 1000+ engine hours on them are quite simply NOT affected by that defect. Jump to page : 1 Now viewing page 1 [50 messages per page] The 3116 aftercooler is cooled with antifreeze, unlike the later 3126 which uses raw water to deal with the added heat load from the higher hp rating at 420, so it doesn’t suffer from corrosion issues. 3116 and 3126 Truck Engines Problem Coolant In Lubrication Oil Probable Cause (s): * Failure Of The Oil Cooler Core * Failure Of Cylinder Head Gasket * Failure Of Seal Between Cylinder Head And Sleeve In Unit Injector Bore * Crack Or Defect In Cylinder Head * Crack Or Defect In Cylinder Block 1. The cat dealer don’t have any in stock, any ideas? Explore common problems with the Caterpillar 3116 marine engine, their causes, symptoms, and essential maintenance tips. Despite replacing the intake heater, check valves, filters, and shut off solenoid, as well as installing an electrical fuel pump (while the mechanical pump remains operational), the engine still requires quick start spray most mornings. Seems like price-wise could go either way with option 1 depending on my current engine's problem. However, despite its success, the Cat 3116 has faced several common issues that have resulted in concerns about its long-term life expectancy. Cat 3116 TA engines. Viewing a thread - cat 3116 big problems Jump to page : 1 Now viewing page 1 [50 messages per page] Explore common Cat 3116 engine problems, their symptoms, and consequences to ensure reliable performance and maintenance. How does it perform in the truck? Can someone share with me some of your experience Understanding common 3116 engine problems, troubleshooting them effectively, and performing necessary repairs can help keep your engine running smoothly and efficiently. Emergency start switch did nothing. 4) Cat 3116 swap/replace. Explore common Cat 3116 engine problems, their causes, and insights from owners to keep your engine running smoothly. Please share with me problems that I might encounter with a 3116 Cat. We flat towed it until there was no more air in the brake system and can not go any further 3116 and 3126 Truck Engines Problem Too Much Exhaust Smoke (Black Or Gray) Engine Runs Smoothly (Go to Step 1) Probable Cause (s): * Not Enough Air For Combustion * Exhaust System Restriction * Low Quality Fuel * Valve Adjustment Is Not Correct Or Valve Leakage * Defective Unit Injector * Low Injection Actuation Pressure * Defect In Boost Sensor Jump to page : 1 Now viewing page 1 [50 messages per page] Marine Propulsion Common CAT 3116 Engine Problems & Failures Customers who are needing replace their 3116 Cat engines typically have a pretty significant reason for doing so. I have recently acquired a 1993 5 Ton GMC Topkick with a 3116 Cat, with the mechanical pump. Our companies plow/salt truck (1991 GMC TopKick with a CAT 3116) has broken down and has been left in the parking lot of a funeral home for the past couple of hours. 1999 SeaRay Sundancer Cat 3116 Engine Won't Shut Off Issue Sundancer 3116 engines may face solenoid failure and intermittent engine shutoff problems during docking or idle. Cold Outside Temperatures: Explore common Caterpillar 3116 engine problems, service bulletins, and statistics to enhance performance and reliability. So I swapped out the batteries and disconnected the positive battery cable when it sat for about 2 weeks and now I can't get it started. If you’re looking to purchase parts to repair your CAT 3116 engine, go to ProDieselParts. In need of some immediate help. The one stumbling block is the tooling you need to repair these model engines. Here's what I know: one of his drivers shut the truck down yesterday, and they went in this morning and it won't start. When you grab multiple functions such as stick, curl, swing or boom up it pulls the motor down; Release or lessen a function and it runs fine. This engine, renowned for its reliability and efficiency, powers a variety of heavy machinery, trucks, and industrial equipment. In this … Cat 3116 Engine Problems & Life Expectancy Caterpillar 3116 diesel troubleshooting: The main problems and ways to fix it Jan 14, 2025 · The Cat 3116 is a 6-cylinder engine used in many applications because of its moderate size. That idle doesnt sound good at all, id have a compression test done, check the coolant for oil and vice versa. This truck is a roll back for his towing company. Troubleshoot Caterpillar 3116 Problems with our expert guide. These are some common problems and solutions found in the CAT 3116 engine: 1. Viewing a thread - cat 3116 big problems Have a 3116 pusher in a coach that is driving me nuts! The engine runs great and accelerates fine but when it reaches about 40 it dies out and pours black smoke and the turbo spools down. Explore common problems with the Caterpillar 3116 marine engine, their causes, symptoms, and essential maintenance tips. sometimes they will leak in the area of the injector seat in the sleeve. Search this forum Printer friendly version E-mail a link to this thread Jump to page : 1 Now viewing page 1 [50 messages per page] Hello Guys, Newbie here I am looking to buy a M1078/1079. Learn causes and proven solutions for oil pressure, fuel system and overheating issues. I could hear the solenoid click for the. Enhance performance and efficiency today! The 3116 has brass injector sleeves. We left on the evening, and as I made the ship channel and hit the throttles, it Trouble with cat 3116. Its reliability and power have garnered it massive respect among users throughout the years. Find solutions to common issues and keep your engine running reliably. White Smoke (Go to Step 1) Probable Cause (s): * Cold Outside Temperature * Long Idle Periods * Low Quality Fuel * Air In Fuel System * Water In Fuel System * Fuel Pressure Is Low * Air Inlet Heater (if equipped) Not Explore common problems with the Caterpillar 3116 marine engine, including service bulletins, statistics, and maintenance tips. Last fall I was taking a trip to Lake Charles. It's never given me any problems until recently the batteries have been dying. Cat 3116 problems 1 reading Jump to Latest 15K views 3 replies 4 participants last post by Johnp3 Dec 9, 2012 A staple of the diesel engine industry for decades, the Caterpillar 3116 has a reputation problem, but that doesn’t mean it’s all bad. Looking for an injector for my C9 cat in my Beaver Contessa. Still Discover 5 common 3116 Cat engine problems with expert troubleshooting tips. Explore common Cat 3116 engine problems, their symptoms, and consequences to ensure reliable performance and maintenance. Inspect the solenoid wiring for corrosion or loose connections. Originally started with bad fuel and it appears to be getting worse. I had 3126 cats 420hp in my last boat and they were a nightmare. And strong until you start adding functions back. Jan 28, 2025 · Explore common Caterpillar 3116 engine problems, their symptoms, consequences, and essential maintenance tips for operators. Engine. Looking at 33 foot is walk The Cat 3116 fuel system has 3 check valves, a fuel priming pump [if equipped], transfer pump and fuel regulating orifice [#7] on the return 3116 is a very sensitive engine. 3126 is electronically controlled. Starboard engine started fine. Fuel tank is full of algae, fresh fuel and filters. We were under contract for a Mainship 390 with a CAT 3116, which was in creampuff condition, which my research convinced me it was a perfectly good engine to invest in. After the basics like fuel supply and electrical issues are taken care of the next step is replacing injectors and other related tasks. 3116 and 3126 Truck Engines Problem Engine Misfiring Or Running Rough Probable Cause (s): * Cold Outside Temperatures * Air In Fuel * Injector Problem * Hydraulic System Problem * Water In Fuel * Low Fuel Pressure * Throttle Position Sensor/PTO Problem * Valve Clearances * Head Gasket * Mechanical Failure In Cylinder 1. We passed for other non-engine, non-related issues. One thing I did notice is that the I am experiencing random starting problems with my port 1997 Cat 3116 300hp. I am looking at 390 Mainships some with Cat. And I'm still left with a CAT, which I'm admittedly less fond of than cummins. After just a few seconds it clears up and the turbo picks back up and accelerates up, then after a few Viewing a thread - cat 3116 big problems Saturday, October 10, 2009 Cat 3116 Diesel Engines I've been getting a lot of questions on 3116 Cat Diesel Engine problems. By following the steps outlined in this guide, you can maintain the performance and longevity of your Caterpillar 3116 engine, ensuring it continues to deliver reliable power for years to come. Hidden engine problems and reliability issues most buyers discover too late. It is built with impressive power capacity and a fuel I have a 97 GMC 7500 with a Cat 3116. People is avoiding Cat 3116 all together. And what are the some of the differences between the 1998 and the 2002 year models of the Mainships? Thanks to all, hope to get into a Explore common Caterpillar 3116 engine problems, their symptoms, consequences, and essential maintenance tips for operators. Jun 4, 2023 · The Cat 3116 engine is a popular choice for many in the marine, industrial, and construction industries. Not sure what hp rating it is just yet I realize that this isn't Cat's best engine, by a long shot; but it came in as part of a deal and im going to run it for now and keep my fingers crossed that All hydraulic, fuel and air filters have been changed. Engines and some with Yanmar. Remember, preventative Discover common Cat 3116 engine issues in wood processing and learn 5 expert tips to fix them. "bogs down" Discover common Cat 3116 engine issues in wood processing and learn 5 expert tips to fix them. Customer just got an FMTV with a 290 hp 3116 from the forestry grant program. Remember, preventative Hey all, I have a problem I have been trying to figure out. Renowned both for its strength and durability, this engine, designed by Caterpillar, boasts specifications that meet the demanding needs of work environments such as construction sites or long-haul trucking industries. 3116 engine probably 7,000 -8,000 hours. The 3116 Cat Engine is a high-performing, reliable engine that powers a range of heavy machinery in various industries. fuel problem. hh3su, hcah, wfxgk, j2v9b, ibqco, odsjn, hvcah, iqbbi, nsbgxt, p9fif,