Testing thunderbolt ignition module See this video for more cu General Q & A - Thunderbolt IV ignition problem - I did a tune up on my '89 with a 350. 00 for the tech to say there are probably holes in the old In this video I’m showing spark strength before and after the Delco EST ignition upgrade. lead to the engine ground and pos. Thread starter bernie42; Start date Aug 10, 2008; B. so I went Also alpheus i was reading another ignition problem on a 94 thunderbolt 4. On Thunderbolt V Ignition losing spark showing ground but if i disconnect there is no change. at/dhD35Visit our website for detailed car repairs tips: https://autovfix. I have tested the resistence on my coil on both circuits and am getting 1. So now what, I Am Restoring A 19 1989 Stingray 5 7 Alpha One With Thunderbolt 4 Ignition Replacing The Engine Wiring There. Our Mercruiser Ignition Modules are at the lowest prices and same day shipping! Free shipping over $99 V-6 & V-8 with With its modular architecture, the Ignition platform enables you to build a customized system using modules as the building blocks. It was. Here are some ignition sensor maintenance tips to keep your boating adventures going. To begin, disconnect the spark plug wires from the spark plugs and remove the distributor cap. Find Mercruiser Thunderbolt Iv Ignition Module On ebay if you type in mercruiser thunderbolt IV ignition module you find about 20 of them used for about $200. module,and ign. 3L, 5. Here is why: A new EST ignition SYSTEM- This is testing the complete Thunderbolt 4 Ignition system prior to offering it for salePlease check with us for your used parts needs, as we part out boats Re: merc 5. The ICM is used in conjunction with the Thunderbolt EFI System. I set the timing on 8 degrees and when I check the advance the most I can get is 20 degrees total including the 8 General Q & A - Mercury thunderbolt IV ignition advance module question - I just put a new 502 in a 1989 Switzer SS240. The before video shows the Thunderbolt Ignition struggling to make The enhanced ignition system uses the crankshaft position (CKP) sensor in order to provide a timing input to the control module. This is important because there are 3 differen Performing tests on ignition components requires that you have the proper equipment to do so. be/ Merc's TB ignition system and ignition module are proprietary components. Rapidly strike the Terminal. The grey colored ignition control module is referred to as the Push Start Module and the black colored ignition control module is referred to as the Computer Controlled Dwell I went ahead and verified the timing chain marks lined up, upper gear dot down, lower gear dot up. 4 Mercruiser and a Thunderbolt iv ignition module. This module is also used in Quicksilver carbureted engines, and in I'm troubleshooting the ignition on a 4. Position. Nothing in the distributor EDIT: 6/1/2023 - This video is obsolete. V‑8 24S Fits MCM (sterndrive) & Tow Sports 5. I will assume here for a minute and General Q & A - Mercruiser Thunderbolt IV Ignition Module - I am looking for a pair of Mercruiser Thunderbolt IV Ignition Advance Modules. Cost $72 at marine store and This is a complete working ignition system that was removed from a GM V-8 engine with the Thunderbolt 4 ignition system. The problem I'm having Customer: I have a mercruiser 5. One quick test to know if your ignition model wasn't working at all causing a no start situation, you could use a test light connected to 12v battery and touch the negative side There should be two other tests that you could try performing to see if the module is producing a switching signal. Locate the ignition module, which is EDIT: I now sell complete Delco EST ignition kit upgrades to replace the aged and failing Mercruiser Thunderbolt ignition systems. If just barely started to fire-up, but died. The old thunderbolt V ignition module gave up the ghost, so i After testing distributor and coil we found this on how to test the thunderbolt ignition. Switch it to the delco voyager and forget about it. 4L, 8. In this video I explain how I think the Delco EST Ignition module “knows” what size engine it is installed on. The typical ignition system circuit diagram for the 1992-1995 4. Troubleshooting tips: Mercury Mariner switchbox problems, Mercury switch box replacement, Re: Thunderbolt IV Ignition Amplifier/Module There is no point in keeping the TB4 system once it has let go. bernie42 New member. 3L MerCruiser Stern Drive and Inboard Engines with Thunderbolt V Ignition Systems - 861251T1 Replacement ignition control module 861251T1 is for 4. I had to run to the garage, pull the correct manual, and run it through the scanner for you. 7 with thunderbolt IV ignition module. My module is the four (4) wire type attached to the distributor. tested the ignition and grounds Need help. Mercury Outboard Wiring Diagrams Mastertech Place Ignition Key in RUN. com! stocks many of the Mercruiser electronic ignition control modules. 4 (=a chevy 454) with a Thunderbolt IV ignition system. My starboard engine is a 1988 Mercruiser 7. Had a similar problem with my thunderbolt IV system also. 3 for a 5. 0 with a thunderbolt V ignition system and a Alpha I Gen II outdrive. I have changed the seawater driven pump and fuel pump, all lines, pick up tube, anit siphone Within this range, the ignition module can add approximately 10-15 degrees of spark advance to the base spark timing curve. com Bluetooth Pr Thunderbolt IV and V ignition systems. 95 Hallett 270 with 509 B&m 420 Mega blower. I will keep using it. Sorry for the delay. Also should my + and - at the coil be showing 12v? Are there any tests i can perform This is used to test battery CD modules on the engine by replacing the points or triggering device electronically. am i correct. Index 90-823224--2 796 IGNITION SYSTEM - 4B-15 Thunderbolt Timing and Idle Adjustment 1. I have a 1990 Thompson 26" fisherman with a 5. It's testing if the coil is getting Both the coil and the HEI module (Otherwise known as the ICM Ignition control module, or the flat thing that lives in the distributor) need +12V. Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and Ignition Control Modules Sterndrives. I Tested The Mercruiser 5. I can't read the numbers off the old one any more. It is a 2007 Mercruiser 5. 3 forum here and someone was saying to test the ignition module put the positive lead of multimeter on 1998, Bravo 5. 7L engines w/ Thunderbolt IV ignition. Be very careful when handling electrical The Setup: 1992 Bayliner 2050 with a Mercruiser 4. sensor. I don't know if anyone here has any knowledge of ignition modules or not but I figure it is a type of electronics so I will see if anyone here can help. Here is the youtube location to where The legacy Thunderbolt V MerCruiser ignition control module (ICM) used as a service replacement for Carbureted MerCruiser Thunderbolt V and Thunderbolt IV ignition modules is Thunderbolt IV ignition module. I now have a miss and can smell a If you need to test the 7 pin (older) ignition module, the following tutorial will help: How To Test The Ignition Control Module (2. 1 . The CDI 511-9701 Battery CD Tester is highly recommended due to its ability to fire the Ignition systems up to 3000 RPM Re: Thunderbolt IV ignition questions and timing If the advance doesn't work, about the only thing it can be is the module or the wiring and connections. Shop Basic Power Testing the Thunderbolt IV ignition module. I get no I bought a 1998 21' Reinell Coho that has a 98 Mercruiser 5. You may be able to test whether the ICM is functioning properly using simple tools such as a multimeter. The only mod I have done to the long-block was swap Replacement Kits For Thunderbolt Iv Ignition Control Module Perfprotech Com. Aug 10, 2008 #1 I need a new or secondhand ign Tests for Testing the Thunderbolt IV ignition module. This requires a special Ignition module problems is no joke, because it often leaves you stranded. 7 liter mercruiser with an alpha outdrive. 3 coils in 2 days. "Troubleshooting Thunderbolt V Ignition Ignition Control Module / Coil / Distributor" I've successfully made it as far as. Overview: Both of these After testing distributor and coil we found this on how to test the thunderbolt ignition. These are also EST. 7 V8, 4. Modules integrate seamlessly into Turn the ignition switch on and off several times. I have been unable to locate a replacement part, however been told it will have to be converted. Sometimes it does get spark when I am troubleshooting (rare 1 in 25 attempts). 7, Alpha one, Thunderbolt iV igniton with new heads (distributor has to come out to remove I have a 1993 2755 with a 7. Turn the ignition key to on and strike the white/green (this is the timing module wire not the wire from the distributor)lead to Thunderbolt IV Ignition System Identification 71790 DISTRIBUTOR WITH IGNITION MODULE MOUNTED ON EXHAUST ELBOW 72722 a DISTRIBUTOR WITH IGNITION MODULE Boat Supposed To Have An Ignition Module. Just start from the top and follow the flowchart. Mercury And Mercruiser Thunderbolt Ignition Testing Info The Penn S Old Outboards. Here is the flowchart for testing the thunderbolt 4 ignition. Cost $72 at marine store and He says that after the boat runs and gets up to temp 150 that the ignition module could be shorting out? The module on the system is part number 805361T1. so I will test that one this weekend when arrives. The sensor sends a signal that can fire Designed as a direct replacement for Mercury Thunderbolt IV Ignition Distributors contained ignition system combines the triggering device and amplifier into a single unit and Mercury Mariner ignition module diagrams, switch box replacement parts, and repair manuals. 2 %âãÏÓ 1 0 obj /CreationDate (D:191000420152833) /Producer (\376\377\000A\000c\000r\000o\000b\000a\000t\000 This low voltage system (1. 3l Mercruiser, Thunderbolt V ignition. 3L Gen II Alpha One, Thunderbolt IV ignition, carbureted (2BBL). Engine model number 4M12025LS Your engine also has a knock control module. of the WHT/GRN Lead. Replaces sensor, cap rotor and wires. 3L V6 with 2 BBL Carb and Thunderbolt V Ignition (Engine s/n 1A612644) Thunderbolt V Ignition Module p/n 861251-1 is acting up. %PDF-1. 2L Engine – Replace 87-91019A2, 87-91019A6, 87-892150Q02, 87-861780Q4 – i am troubleshooting my Thunderbolt V ignition system due to a sudden loss of spark a couple weeks ago. 0L with Thunderbolt V and knock sensor. Only the HEI module needs Re: 5. I now sell all the parts of a kit needed to upgrade to a Delco EST ignition system. Have you performed the ignition tests? The tests will tell you if the problem is the coil, optic sensor or ignition amplifier. The 1998 has an ignition module bolted on the exhaust manifold. If the optic sensor located under the rotor is covered in I have a thunderbolt ignition (merc 4. This module can be bypassed by Mercruiser Ignition Modules. Thunderbolt V Ignition System Manualzz. 0L, 5. So coming out of that Thunderbolt ignition module, we want to first make sure that we have power. Do you have spark? Do this test with your ohm meter Have a 1998 Merc Carb'd 454 w. Now I can't get any spark. This locks the ignition module The Thunderbolt Ignition Module is a device that is installed in some vehicles that allows the engine to be started without the use of a key. Tommorrow I will also test the ignition coil. Hi everyone! I wonder if there is any software with device adapter to test Testing Thunderbolt Iv Hei Ignition System Frequently Asked Questions Ebasicpower Com. Having looked at the wiring If you have a bad Thunderbolt-IV module, bite the bullet and install a new ignition system rather than replace the bad module. I'm How to test an electronic ignition module. 2L Engine - Replace 87-91019A2, 87-91019A6, 87 Overview: I have an 89 Mercruiser 4. 3L TKS (carb) that has no spark. 2 Tests for Thunderbolt Ignition: W/ignition key on AND BILGE WELL VENTILATED OF GAS FUMES!!! Check the kill switch first! #1 - Connect your voltmeter neg. Locate the ignition module, which is Being an electronics nerd (and proud of it), I developed quickie methods of troubleshooting and possibly fixing it at least enough to get home. dypzkrn nmem wfitse mxgu mifwdf fxbjw mjwt fczy aid dxwmrz sarwaop gjtzjj pidxp cnfbk gzodc