WebMar 17, 2015 · Look on this site for a replacement and get the part number and do a ebay or google search for a replacement. The newer modules are very small comapired to the one you (and I have) on the boat. Different package same connections and the same result. Reply J jaegerboy Member May 5, 2014 #5 WebJul 27, 2024 · Mercruiser introduced the Thunderbolt IV onto their engines in 1982, alongside the introduction of the 1-R drives. The TB-IV system was used until the …
Thunderbolt IV ignition problems. 3 coils in 2 days.
WebOEM MerCruiser Rotor Thunderbolt IV & V ignition Systems13524T 1 $17.10 $12.21 On Sale OEM MerCruiser Rotor-Thunder IV&V HEI Ignition Systems 13524A 6 $17.90 $12.79 OEM MerCruiser Ignition Coil Dfi O/B 339-856991A 1 $179.92 $133.04 On Sale OEM Mercury Marine MerCruiser Oil Filter V6 V8 35-866340K01 $13.70 $9.79 Top Description Warranty … WebDec 31, 2005 · Troubleshooting the Thunderbolt IV is pretty simple and can be done with just a test light and a spark tester on the dist end of the coil wire. First step is to disconnect the tach. (grey wire on the negative terminal of the coil) A … ez fitness lakemore
Sierra International 18-5470, Thunderbolt IV V-8 …
WebFind ignition tune-up kits & components including points, rotors, condensers, rotor cap kits & distributor caps for your Mercruiser stern drive using the application chart from the Mercury Quicksilver catalog. Need other parts? If you need parts not listed in the application guide, please see: Mercruiser engine diagrams WebMercruiser Thunderbolt Iv Ignition Module With Wiring Harness $195.00 View Details Mercruiser 4.3 Thunderbolt Iv Ignition Module V6-14 1 Alpha 15247a1 $135.00 View Details Mercruiser Thunderbolt Iv Ignition Module $250.00 View Details Ignition Module For Mercruiser Volvo Penta Omc 4-cyl V6 V8 Engines W Delco Br $16.98 View Details WebMay 13, 2010 · I have a mercruiser 5.7 with thunderbolt IV ignition module. 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 initial degrees. The book calls for 8 initial and 22-25 advance for total of 30 degrees. ez fit meals