Can’t repair, so must replace!!

Almost everything can be repaired. It would be cheaper to rebuild your engine than replace it.

Not trying to be a smarta** (just funny), but isn't a carburetor supposed to dump fuel into the cylinders?

Sorry that it ended up the way it did.

www.jasperengines.com

TYPE:      MARINE ENGINE
MAKE:      PLEASURECRAFT
YEAR:      1986
MODEL:      5.8L/FORD
LITER:      5.8 LITER V8
ROTATION:      REV
STOCK NUMBER:      745410 CARB COMPLETE

GRAPHITE HEAD GASKETS:Pliable material that does not tear when casting
expand and contract. Graphite gaskets transfer heat evenly and will   
not deteriorate around water passages like Kevlar gaskets do.       
MOLY PISTON RING:Higher durability, reduce cyl. wall wear.            
CHROME PLATED VALVE STEMS:Have better oil retention, improved       
resistance to galling and greater overall durability than conventional
valve stem      

Product summary: 223-250 HP, Firing Order 1-8-4-5-6-2-7-3, Timing Chain, 12 Bolts Holding Intake Manifold to Cylinder Heads, Dipstick in Oil Pan
Block casting: D2AE-BA D4AE-AA
Block casting location: PASSENGER SIDE-AT PAN RAIL
Crank casting: 7M 7MA 3M 3C
Crank casting location: BETWEEN #1 MAIN & #1 ROD JOURNALS
Head casting: D5OE-CA D7OE-DC D8OE-AB
Head casting location: BOTTOM OF HEAD UNDER 2ND INTAKE PORT
FIRING ORDER 18456273, FLYWHEEL TURNS CLOCKWISE HARMONIC BALANCER TURNS COUNTER CLOCKWISE SPECIFY IF ENGINE HAS CAST IRON TIMING COVER COMPLETE ENGINE WILL COME WITH ALUMINUM TIMING COVER AND TIN OIL PAN,IF ORIGINAL ENGINE HAS EITHER A CAST IRON PAN OR TIMING COVER IT IS THE RESPON -SIBILITY OF THE CUSTOMER TO CHANGE ENGINE DISTRIBUTOR GEAR RUNS TOP RIGHT TO LOWER LEFT SPECIFY THE NUMBER OF BOLTS 12-16 HOLDING INTAKE MANIFOLD TO CYLINDER HEADS


THE PRICE IS: $2392.00
SOLD ON AN EXCHANGE BASIS W/JASPER RECEIVING OLD UNIT AS A CORE.

Ken:

Jasperengines is selling rebuilt engines (hence wanting your old engine). $2392 seems like a fair price, as it usually costs me about the same to rebuild V8 engines. It would also save you alot of time and trouble. You basically would just have to bolt on all your accessories, wire it up and go.

It looks like Jasper is rebuilding to mild factory specs as I would like to see a HP improvement over what is listed in above post...say 300HP or so.

I really appreciate the replies. I'm completely baffled about what Correct Craft said. They did a "drain down test". They screwed an attachment to where the spark plugs go. Then they blow air into each cylinder to test the integrity of each cylinder. Two cylinders experienced 60% blow-by and caused pressure in the crankcase. Two other cylinders are nearing failure. The other four are about 20%, which I'm told is OK.

With only 595 hours on this well cared for boat, somewhere down the line, the orginal carburetor failed. When I bought it, the problem occurred after an hour worth of use. It would run great, then just stop idling. This is where Correct Craft feels where the problem began. The fuel was either flowing too much, causing it to flow into the crankcase or it ran too lean. Goes to show you how important it is to keep the carburetor running right.

I am leaning towards a rebuilt block. David, does it come with new valves/head? What's the approx. shipping expense from this place to NECC in New Hampshire? Plus, I'd need to send mine to them. I would love to push more HP out of a 351. Is it a high output engine? I'm looking at the time and expense factors. NECC would charge me labor to strip my engine down and bolt on the parts on the new block.

Ken

The fuel running into the cylinders caused a lack of lubrication of the cylinder walls which caused the piston rings to wear the cylinder walls excessively. The blow by(pressure in the crankcase is caused by the same problem which caused the rings to overheat and loose tension which in turn caused compresion pressure to leak by the rings into the crankcase. A "leak down test" and a compression can verify this. I recommend to my customers that are not mechanicly inclined to replace the Holley carb with a Edelbrock marine carb. Two reasons for this that Holley is worn out & needs to be replaced and if that engine backfires on take off one time the power valve blows out(those not blow out valves are not fool proof) causing rich fuel mixture which leads us to the beginning of the reply. I just rebuilt the 351 in my '78 total, bored .040" over,new pistons, ground the crank, fitted new rods, balanced the components, complete valve & head service to the tune of $1400.00 parts & labor. The Jasper units are a good value. But $7000.00 is a little steep for an older boat. But if you had the money to piss away what the heck that engine is turn key. Good luck.

Can you feel the difference between the 255 HP stock engine and the 300 HP upgrade? Looks good but is it enough difference to spend an extra $1,200? Will that engine fit in my 1986 Nautique? I just want to make sure I can swap out each part and that it will fit. Will it fit my Velvet Drive 1:1 transmission? Do the people at Jasper know about Correct Craft boats? I'd be more than happy to call Chad.

Thanks and keep the suggestions coming. I do plan on keeping the boat another two or three years, so it's worth every cent.

I just spoke to the service department at NECC. They can get me a rebuilt 351, new manifolds, new paint, tune, install, one year warrantee and delivered in two weeks for $5,500. I will see about increasing the HP. Would anyone ever do this for their Bayliner?

You can buy a 400 hp, 396 full-zoot stroker long block for that scratch, but you still have to install it. Its mostly wrench off-wrench on.