Troubleshooting Engine Troubleshooting Guides EFI Engines Only: Refer to EFI Diagnostic Manual . These guides were written to help you trace the symp- toms of the trouble to the source, without having to read through and prove every possibility. Much of the information here will be familiar to well informed me- chanics. Whether servicing the boat’s systems yourself or hav- ing your product serviced by a certified Volvo Penta dealer, you will need this record of information to iden- tify potential causes of the malfunction. Analyze this information and try to match it to similar situations you have experienced in the past. Keep in mind the fundamental rules:
Also, many factors will seem insignificant but when you think of it, usually the toughest problem to trouble- shoot is caused by the smallest error. The greatest aid to solving a service problem is information. Start gath- ering information and keep a detailed record of the symptoms of the malfunction. Keep a record of perti- nent facts, such as: COMPRESSION - Mixture inducted into cylinder and compressed. SPARK - Proper intensity at the proper time. FUEL - Proper mixture of air and fuel. These are very old rules, but necessary for the engine to run. Use the following charts and the service infor- mation to which they refer.
Do not try to remember tol- erances, settings, measurements, etc., as they are written in the service manual. Leave your mind free to analyze the problem. When did this trouble start? How was the boat loaded? Did the trouble occur suddenly or did it become apparent gradually? 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 Following is a list of the troubleshooting guides which may be found on the pages indicated. Title Page Engine Will Not Crank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Engine Cranks, But Will Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Hard Starting - Cold Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Hard Starting - Hot Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Engine Runs Rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Engine Noises and Vibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
107 Engine Overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Engine Dies Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Engine Won’t Reach Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Defective Engine Lubricating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Low Battery Voltage After Short Storage . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 104 VPA 7743722 English 10-2004