Annual service for a 1991 SN

[MISFITS1981]

So, Im going to go out and do the service on my 91 SN with the 302 engine. What should I be looking at work wise? I know to change the engine and trans oil, but should I do spark plugs and points and condensor too? Does anyone know what impeller is used on this engine? Any help is appreciated!!

[TRBenj]

RE: Annual service for a 1991 SN

Do you have a '91 or '81? A '91 would not have had a 302, the 351 was standard. Most '91s would have had the Protec ignition (no points and condensor), are you sure you have a conventional distributor? If so, are you sure that you dont already have EI? Ive only seen one early 90's boat without the Protec and it came with EI from the factory, though it was a few years newer than yours.

Yes, change transmission fluid and engine oil. They should really be changed when winterizing, but better to do it now than not at all. Also put some fresh spark plugs in- use Autolites. Assuming you have a stock engine, you need Autolite 24's. The impeller is the same Sherwood unit used by all PCM Fords- you can get it at SkiDIM or Whitelake, among others.