1972 mercruiser 120 ballast resistors??

[Fuss188]

After dealing with a rough idle/missfire, I think I've finally tracked the problem to the ballast resistor(s). There are 2 of them back to back, but from what I have gathered they act as a single unit. I checked them with my multimeter, one has absolutely no resistance and the other is open. My question is, can I possibly replace them with a resistor from say..an old car...if the resistance values match up with what the book says they should be (1.2-1.4ohms)?? If not, any suggestions on where I can get some new, or even good used ones? I've called a couple local boat mechanics...but havent heard back from them. Any suggestions are greatly appreciated Thanks.

 

[Bt Doctur]

Re: 1972 mercruiser 120 ballast resistors??

auto parts store ,Chrysler application

 

[Fuss188]

Re: 1972 mercruiser 120 ballast resistors??

Thanks alot! I will try that tomorrow. I'll let ya know how it works out!

 

[cr2k]

Re: 1972 mercruiser 120 ballast resistors??

Or replace coil with internal resister one.