1999. 5.0GL distributor cap short life

[mikeneal]

I repowered my 99 5.0 GL about a year ago and it seems like abouot uevery 6 months it gets a miss and other interior of the cap is gross, I replace it and runs smooth again. No idea why the cap would be get corression huld up, I checked the basket under cap is intact and cap is tight. Any thoughts?

 

[gbeltran]

Are you getting the cap with brass contacts or aluminum? Also, how old are the plugs and what about the condition of the wires?

 

[jimmbo]

Marine distributor? Marine engine for that matter?

 

[dypcdiver]

No Title

Does it look like mine? This is the state it get to after being stored over the winter.
I just take a Nylon tuffted wheel on my Dremel to the posts and the come up shinny, takes about 2 mins.
The first cap that came new with the boat had aluminium alloy posts, did the same so I swapped it for the one with brass posts, as you can see no difference.
Boat is in salt water for 6 months here in the Mediterranean. Now just part of my pre launch maintenance schedule.

 

[mikeneal]

Mine has brass contacts, on the water I scrubbed it with a small stainless brush to run better for reminder of the day.

 

[mikeneal]

Yes marine longbloxk installed last October. Ignition is stock prestolite

Marine distributor? Marine engine for that matter?