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View Full Version : How to keep ign. coils from looking like starwars???



xr1million
06-28-2010, 05:21 PM
I have an '87 yami 30 3 cylinder on an 8' Flivver. Everytime the engine gets the slightest spray of saltwater (which happens almost instantly on this boat) the ign. coils turn into a giant ball of orange arcs and the engine starts missing. I replaced both the CDI and coils from a parts motor of the same vintage. Both sets of coils have done the same thing. Although the original ones didnt do it until I flipped the boat in salt water a few weeks ago. I thoroughly coated the replacement coils with some CRC heavy duty corrosion inhibitor hoping that it'd protect them from the salt water but didnt help.

The casing on the coils look to be in alright condition although after 20+ years Im sure the insulation has deteriorated a bit.
So any ideas on ways to protect the coils from moisture or am I do for a new set at $100 a pop?

Thanks!

rockbottom
06-28-2010, 08:15 PM
well the way I see it :eek:, you got two options , either take 6-8 people out of that boat or raise the motor up a couple feet , steve :thumbsup:

M. HARDEE
06-28-2010, 08:24 PM
i agree with Steve -- Raise engine up 3 feet on transom lol ---------- take off coils CLEAN OIL OFF LET DRY and coat them in spray clear-- lacker--- (spelling error for lib-tard) seal good 4or5 coats

xr1million
06-28-2010, 10:45 PM
ehh the most Ive had in the boat so far is 5... and we were oacean bound on that trip. The engine is mounted with the anti-ventilation plate about an inch under the bottom of the boat (to keep the prop hooked up in turns). :)

The boat has been prop up in fresh water many many many times with No ill effects. One dunk in the salt and its been nothing but problems... well only this problem but still!

Slowly figuring out how to bomb proof this engine!

I'll give the clear coat a try. But also thinking about mounting the coils and CDI inside an ignition box from a jetski... I've got one of those laying around!

baddjonny
06-29-2010, 06:26 AM
Try to find a old fliver with the high sides big difference in staying dry and afloat had a merc 1100 on one of mine knowone had the *&^%$#@# to drive it but it floated pic on S&F someplace had the raps off to prove there was a powerhead under the cover . I was one crazy kid when I was 16-17. Try to get rid of that phoney fliver real flivers have fins. ran mine with a merc mark 55a 45 hp. with a home made tiller a old cut down closet rod hose clamped to the engine.

my two : you can even try womens hair spray to seal the coils.

jon b



s

j_martin
06-29-2010, 08:54 AM
Try a homogenous clear solution of polyether-modified organopolysiloxane resin in toluene.

Translated, it's electrical insulation lacquer. Should be available from your local electric motor rewinder, transformer manufacturer or an electrical supply house.

(edit) There's spray can versions available from Grainger for sure, probably also from automotive suppliers. Clear spray lacquer from Wally World is probably just as good as those.

The professional version is pretty unbelievable stuff compared to the street version.

M. HARDEE
06-30-2010, 11:30 AM
HOMOGENOUS,POLYETHER-MODIFIED ORGANOPLYSILOXANE --------------------- DAM---------- JAY----- I got a headache from that one . lol

xr1million
07-01-2010, 09:21 PM
Jay, found the website you got your info from: http://www.ecplaza.net/product/56592_66378/electric_insulating_lacquer.html
with the same mispelled words and all. :)

I found some spray stuff at Grainger that Im trying tomorrow.