Evinrude Fastwin 18hp 1957 help needed!

[sauersr]

Evinrude Fastwin 18hp 1957-model. 1st time boat owner, little to no experience with boat engines. <br />I have just got this engine. It probably has not been started in 5-7 years. My question therefore is what should I do? It appears to have a weak spark, and the carb float has crystallized, and is flaking apart. My thoughts where to purchase a "tune up kit" points, condenser and replace the coils. Then a carb rebuild kit?. any suggestions on where to find the part#'s, then where to get the parts for this engine?<br />What else would you recommend doing before taking it out for a test run? replace the water pump, impeller, change lower gear oil, etc...??? Any help greatly appreciated.

 

[Paul Moir]

Re: Evinrude Fastwin 18hp 1957 help needed!

sauersr, first off, welcome to Iboats!<br /><br />I would say that you're list is near perfect, except you should do a compression check first. That'll confirm that all the expensive and hard to get parts are good. You want to see 90psi or over on both cylinders, and most importantly, you want to see less than 10% variance.<br /><br />You must get an OEM carburator kit from a Johnson/Evinrude dealer, since the aftermarket ones don't include a float. You can get one here too. OEM #439071. <br />OEM Coils, condensors and points, and water pump impeller can be gotten from the dealer, or aftermarket ones can be purchased from NAPA autoparts, as well as many places online. Aftermarke part numbers are:<br />18-5181 - Coil (you'll need 2). Cheapest I've found is $13 each online.<br />18-5006 - Ignition tune up kit (~$15) (you'll need 1)<br />18-3002 - Water pump impeller (~$10) (you'll need 1)<br /><br />I'm sure others will have suggestions too.<br /><br />EDIT - I forgot, if your compression test works out, you'll want to get yourself a manual. You can order an original service manual here. You can order an aftermarket one from Iboats. The OEM one is more detailed and is particulair to your engine. The aftermarket one is geared more toward beginners and gives alternatives to using special tools. The OEM one is generally considered superior.<br />Sometimes they turn up on ebay pretty cheap. I don't see any for your engine right now though. Just some (later 18hp) parts books.<br /><br />Good luck!

 

[rickdb1boat]

Re: Evinrude Fastwin 18hp 1957 help needed!

Everything you have mentioned should be done. The whole works can be had here:<br /><br /> web page

 

[Paul Moir]

Re: Evinrude Fastwin 18hp 1957 help needed!

As long as you toss the NGK B8S spark plugs and put in a set of Champion J4C's.

 

[sauersr]

Re: Evinrude Fastwin 18hp 1957 help needed!

Thanks for quick resp... I called the local NAPA dealer, they said they do not carry any of the aftermarket part# listed below. However I was able to locate a few resources on line.<br />few more?'s. Anything that I need to be aware of when changing out these parts? Currently the engine has Champion J8C's I assume these are not the recommended plugs?

 

[Paul Moir]

Re: Evinrude Fastwin 18hp 1957 help needed!

Some NAPA's don't know that they even have a marine catalog. <br /><br />There are many things you must be aware of when you change these parts, but you'll find what you need in the service manual. Read through each procedure and understand it before attempting the repair. If you get stuck, we're here to help you. But tell us what compression readings you get before spending any money on the engine.<br /><br />Champion J8C's are far to hot for that engine, unless your operating it at a very high altitude. J4C's are the recomended plug, but if they're fouling on you, you might try a J6C.