470 question

Cool, thanks for the info :) I have seen the pertronics mentioned in other posts on the forum and it is definitely on my list of things to get. By the way, what should I set the gap to on the plugs? Thanks

[Steplift 72']

Originally Posted by ChumStain

Cool, thanks for the info :) I have seen the pertronics mentioned in other posts on the forum and it is definitely on my list of things to get. By the way, what should I set the gap to on the plugs? Thanks

I haven't fished on a 470 powered boat in many years but recall the alternator and heat exchanger being weak points. Other than that, I thought they were fine running engines with decent performance and mileage. My buddies that ran them switched the crank snout mounted alternator to an external model and one increased the heat exchanger size to keep the motor cool.

[spareparts]

.035

[cfelton]

I use 40w motor oil with about a quart of Lucus oil stabilizer in my 170, it seem to like it OK. I would also recomend doing the electronic ignition change over, it made a huge difference in starting and performance. I used the Pertronix ignitor and the Flamethrower coil, well worth the money!!

[spareparts]

I'd have to give the nod to 40w over 30 just for the fact that those motors don't use cam bearings, teh cam rides on the aluminum block, when it warms up, you tend to loose some oil pressure, this is normal for those motors, it just makes you feel a little better when you glance down at the oil presure gauge on a hot day

Awesome! Thanks Spare, This is my first real boat and I know nothing at all about it. Im also partial to chevys and I guess the 470 is basically a ford, or at least half of a ford, but it does run pretty good for an old boat thats been sitting a while. The speedo was bouncing around 40 when I took it out about a month ago, I cant wait to see how fast it really does with my new gps. Im planning on doing a tune up this weekend and hopefully some fishing afterward.