first, welcome aboard
you have 1-piece engine killer manifolds on your 4.3? I would switch them to the new 2-piece.
there is no such thing as a good 1-piece manifold, AKA "Batwing" AKA "engine killer"
because of the casting process, and the core shift that happens with every cast product...
Carb or efi?
Smooth valve covers or ribbed? (gen 5 or gen 6 identification)
6 bolt or 10 bolt timing cover (gen 5 or gen 6 identification)
Fuel pressure?
Compression numbers?
You may find used.
However used manifolds are like buying used depends......
Remember, boating is an expensive hobby, and $1200 for an aluminum manifold that is no longer available from the manufacturer is a deal
you cant unmake bad gas. once gas turns to varnish, your only choice is to pump it out, pay to dispose of it, clean the whole fuel system and then start over with fresh gas
or weld a plate on the end of the PDS shaft, and use the porta-power to pull it off the motor........ you would need a new PDS shaft and flex plate at that point
a good mechanic has permatex #1, #2, and #3 (aviation) on hand along with 4 different loc-tite compounds and both copper and moly based lubricants and a tube of tef-gel
use the permatex #3 (aviation sealer)
first, welcome aboard
the downside to most 70's and 80's mercury outboards are the wiring harnesses falling apart. the insulation lasts only about 15 years. the Mice didnt help
the two common choices are buy a new harness or build a new harness.
could be bravoitis
the brown rubber bits are now toast....... literally. you need new exhaust rubber bits including the flappers.
rubber bits are good for 250 degrees F max. exhaust temperatures without water are 1100-1400 degrees. the rubber bits never stood a chance.
Primary Drive Shaft. the "bell housing" on the AQ series drives is known as the PDS housing.
to remove the drive, pull the shift cover off the drive, disconnect the shift cable, disconnect the helmet use 1/4-20 screws (or 1/4-28 dont remember) to drive the helmet pin out. remove the pins...
that seloc manual is going so sink your boat. get a factory manual. the amount of misinformation in a seloc manual is staggering
at best, you can use it for knee pads, to prop up the corner of a couch. at least it would make emergency toilet paper in an outhouse.
pull the boat on the hard...
the head is a modified for 460 (it has a big ol hole drilled in it)
if you want to rebuild the 470, suggest you add a bore stabilizing spider (sometimes called a deck girdle) to the block and get an edelbrock aluminum head for a ford FE engine. you will also need to sleeve the bores
as Eric...
remember, Sea Star Solutions didnt exist until Teleflex sold off the marine side in 2011. that was the Gauge division sold to VeeThree and the cables and helms were spun off to SeaStar solution.
your 1976 boat would have most likely had a Teleflex marine helm and cables
however the series...
not sure what manual you are reading.
the factory manual says remove the drive, undo the 6 bolts that clamp the PDS in place and remove the engine and PDS housing (this would leave a nice large 6" diameter hole)
when was the last time you had the drive off for bellows change and u-joint...
