I am also new to this site and have already found it to be a wealth of info. I purchased this 1976 pioneer 19 foot in california in early august and have hauled it home to B.C. for a total restoration from the ground up It has a 460 in it and the tag on the pump is a bit hard to read but I think it says JG-A it is my winter project

Im trying had to get my daughter to show me how to resize them these are taken the day we tried it out to buy on a resovoir near grass valley

sandblast paint new bunks rewire trailer, sand hull new 3 color paint  polish jet polish all motor aluminum new engine paint new chrome goodies on engine new carpet new interior etc etc etc etc

sand blasting trailer but I am going to strip the hull with ctri strip I have already tried it and it seems to work good but will not harm the fiberglass the reason for stripping is that the previous owner painted it himself his first try and there are large runs everywher and sanding is such a tedious job that i thought strip then prime and block by hand but I am open to all suggestions

looks good..

today was finally the day ,my daughters boyfriend and I got the  boat off the trailer and the motor pulled. it went real well although I was  nervous with it swinging in the air when we had to cross the yard to the shop. now on to paint stripping then new paint .Thanks Tom for the advise on splitting the motor from the pump sorry to interupt your lunch

Farmers have all the neat tool love that engine hoist

I need some advise from you engine gurus. While I have the motor and pump out of the boat should I do anything to either. The working engine hour meter say 348 hours and the boat starts and runs fine . it think it is a fairly stock 460 and Im going to put new gaskets in to stop the oil leaks and some other dress up items but Im wondering if I should put in things like new bearings or have the heads looked at. Should I rebuild the pump thanks for any suggestions

I would put a set of aluminum heads on it. I guess it depends on your end result goal, fast or family? If your tearing it all the way down May as well rebuild it all. Then you Know what everything is and it's what you want.

Plastiguage is the ONLY way to do it as far as main and rod bearing clearances. My concern for you is the severely worn lifter (s) and were'd all that metal go? Or through! (That would be a concern). Gonna require a hot tank and thorough block/head cleaning to be sure, IMHO. The cam is wiped, at least on one lobe, probably.

New cam/lifters, obviously in order, and proper break in on that. I would replace the valve springs anyway while at it, as Marc said.

Personally, I would ensure the seat pressure on the springs meets spec for the cam you're gonna use .Those are all available as a kit, usually. Marcsrollin can hook you up on that! I would put in new main and rod bearings anyway and a crank polish while its down. Cheap insurance. Always polish the crank on new mains and rods.

As far at what clearances to look for on the short block? Dave at A&D, Ralph, or Barry (Obnoxious1) would be the pros, but I beleive if you go .002-.005 over spec you should be fine on a boat engine. I'd lean towards the .002 side, but just me.

Topm posted something recently about ring gap too, but doesn't sound like you need to mess with new rings/pistons.

Ray

thanks guys sounds like good advice I was kind of figuring to do all that . Havent pulled the cam yet but im sure from the 1 bad lifter that it is focked.what  if anything should i do to the pump berk 12jb-a

well after 2 weeks of applying paint stripper, scraping ,washing and sanding we are down to the original gel coat, snot green.next tear out the carpet which is glued in with some kind of construction adhesive then on to primer and blocking Engine block going to machine shop tomorrow for whatever is needed have new cam, lifters ,valve springs and such for rebuild. waiting to see what size bearings and rings I need

after discovering the green if I did not already have $1000 bucks worth of paint I would have been more careful stripping and just polished out the gel coat. and as far as I know (not much) it is a stock berk JB-A jet

 looking good  Gordy awsome job bud