Recent content by Wellcraft1996

Hello I have a thunderbolt 5 ignition system on my boat. It's a 350 5.7 V8. I was told from tech. from Holley that my sniper EFI wouldn't work right if I didn't remove the Thunderbolt-5 module and distributor and I needed to purchase a Holley MSD Ignition and purchase a Holley marine...

The old girl started up and eventually after some ruff idling and rattling/knocking noise the engine smoothed out and ran like a champ. Don't know what the knocking noise was, but it went away.

After carb was rebuilt, I think shop didn't set fuel and air mixture screws at all and too much fuel is going into carburetor.

engine serial number is OF414565. Engine I dont think it fires in the cylinder 7 and 8. Those cylinder spark plugs were really dripping with gas and black carbon

I have a 4bbl carb. 5.7L and it will crank but want start. After new coil, distributor cap, still know start. Checked spark plugs and both rear plugs 7 and 8 were wet with gas and black smuck. The other plugs were covered in just black smuck could that keep engine from starting. Also recently...

Battery fully charged, dont have post on battery. Pulled number 7 cylinder plug and it was wet with gas or oil black stuff.

4bbl carb and battery is fully charged. I try the battery post cleaning

1996 Welcraft Excel26 Mercruiser 5.7Liter V8 engine. It has fuel has ignition spark but still want start. Starter seemed to be struggling turning engine over so I replaced with new starter. Now with new starter engine acts like it wants to start but want. Batteries are fully charged but the...

1996 Wellcraft 26. when I pump toilet handle to draw water into toilet boil, no water comes in.

Replaced diode and lights came on. Thank you

It has diode on it, as seen in picture here.

I have been restoring my Wellcraft excel26 for about a year or more. I recently ran into an issue with my nav/anchor or running lights not working. Checked all fuses and they are good. I don't think the switch has a power source. Its wired with three wires pigtail together on the top pole and...

It was the main harness connector. I just took my time and spread open those prongs a little bit and re connected the harness and it runs great.

Went through every wire connector, wires, fuses and safety switch on my boat. Still no spark, so unplugged engine main harness connector and spread apart all the male prongs, plug it back in and shazam, it fired up. Thanks for your help