nsformula

not my formula, but my old boat i am trying to sell.


89 454 carb engine
blows big time smoke out starboard side exhaust,
open pipes, not twined.
only after high speed run, then shut down and re start.
doesn't smoke without being turn off.

no blow by on crank vent in valve covers, either side
i am hoping valve seals on one bank.
waasss up

ThirdBird

Does sound like valve seals.

FRMULTR

I'd agree with ThirdBird. After shutting down, oil is leaking past the seals and laying on top of the pistons, thus lots of oil smoke on restart.

axapowell

Good place to start.

Dave

nsformula

thanx for the replies,
it's blows ALOT of smoke, will a seal leak that bad?
my local engine builder/friend fiqures it's a guide if it leaks real bad
I need to pay someone to repair this,
should I bite the bullet and pull the head?
do i need to take off intake to remove head

axapowell

Yes, you need to pull the intake to remove the head. If you do one, do both. Head gasket, surface the heads , valve job, guides, and springs. Check the retainers, locks, and rockers for wear. How many hours?

Dave

axapowell

Don't forget the seals too!

Dave

ThirdBird

I agree. It's time, it's an '89. Make sure you take them to a good machine shop and get them checked for cracks. I pulled my four heads a few years back just to get them freshened. 3 out of four had cracks between the valves - junk.

Hopefully you won't find that. If there are no cracks, a good head overhaul should be about 400 bucks each.

nsformula

took the valve cover and exh manifold off, changed the seals.
none were damaged or dried up.
lots of water in exh manifold and one cylinder pumpd out a little water when aired up to change seal.
heads coming off tomorrow,
sure sucks on a boat for sale, already lost one sale,

On the bright side, got the Formula out of storage today,
cleaned it up and checked and lubed etc,
flashed up instantly on 1st hit of the key....gotta like it

axapowell

Sorry to hear the bad news...Might be good that you caught it this soon though. You will feel better knowing that someone will get it in much better condition.

On the Good note...The Formula is out and running with no problems! 50% is better then 0%!!

Dave