small block lifter leplacement

[pine island fred]

After repeateted oil/filter replacement to eliminate water in crankcase, friend took boat on a trip today. Engine developed a loud knock that from me standing in the water could be either a bad bearing or hopefully a bad lifter. Did not want to get any closer at this point. <br /> Question is , can the lifters be replaced without removing the heads? Did this on a chrysler slant 6 with a tool I have. Dont know if the push rod hole is large enough on a chevy 305. <br /> Also, if the block is trashed can the engine be replaced without removing the outdrive? Boats is in the water, no trailer but on a lift. It is a 92-93 chaparrell with a volvo 290 DP with a small block chevy 305. When do you know when to stop throwing $$$s at these things? thanks fred

 

[pine island fred]

Re: small block lifter leplacement

Let me add, just replaced the 290DP with a new one out of the box. Then the distributer self distructs when the fly weight springs let go. Replaced the exh. manifolds and risers do to salt water intrusion. Replaced the raw and cric. pumps. Nice older boat but when do you pull he plug? Works good at the dock but every time it goes out a problem developes. Any ideas, want to buy it? I am an o/b man myself. fred

 

[Don S]

Re: small block lifter leplacement

Lifters don't knock, they clatter a little bit, but they don't make a "Scare off the People around the boat" type knock.<br />That's either a bearing, broken rod, valve hitting a piston or something like that.<br />And YES, the lifters can be replaced without pulling the head.

 

[Don S]

Re: small block lifter leplacement

I was typing while you were posting.<br /><br />Sounds like a lot of corrosion problems. You can see it, we can't. The items you described are common to salt water boats that never get any preventive maintenance or even maintenance needed at the time. "Run it till it starts falling apart then sell it" is how that boat was taken care of. Want to guess what the drive is like?????<br />A lot of your problems could also be because the boat is always in the water. You MUST pull the upper gear box to remove the engine (properly). I suppose you could just seperate the bellhousing from the engine, but the Volvo bellows really need service yearly.

 

[Bondo]

Re: small block lifter leplacement

Originally posted by Don S:<br /> I was typing while you were posting.<br /><br />Sounds like a lot of corrosion problems. You can see it, we can't. The items you described are common to salt water boats that never get any preventive maintenance or even maintenance needed at the time. "Run it till it starts falling apart then sell it" is how that boat was taken care of.<br /> Want to guess what the drive is like????? <br />

Originally posted by pine island fred:<br /> Let me add, just replaced the 290DP with a new one out of the box. fred

Brand New would be My Guess...................... <br /><br /><br />You Don't need to Pull the Heads,.......<br />But,....<br />You Do have to Pull the Intake,+ Everything Related...........<br /><br />Sounds to Me,... That it's Probably time for a GM Goodwrench 350 Truck motor........... <br /><br />The boat ain't worth Nothing,..... If it Ain't Runnin'................

 

[pine island fred]

Re: small block lifter leplacement

I was standing in the gulf water( nice and comfortable) when the boat got to the ancorage, to much confusion and help on board so I decided to listen to it while in the water. Had no tools, cant fix it there anyway. Had a very noisy lifter which quieted down as we flushed the engine so was hoping a lifter failed. I was hoping I could go down the push rod holes if it is a bad lifter , just dont want to pull and time the distributer again. Guess we will remove the manifold and valley cover if it makes it back to the lift today. <br /> Experience shows that the engine/drive were neglected and actually damaged with a good coverup, sell it job done. Thats why the price was so good. <br /> I assume a 350 truck engine is a small block? Thanks/ regards fred.

 

[paulie0735]

Re: small block lifter leplacement

I'm with the rest on this, sounds like you best off with a reco engine, I would go up to the 5.7, most if not all your acc will fit. <br />The time to stop throwing money at it is before you start! Get the thing surveyed by a pro, get a list of things that require attention, a quote for the urgent and important stuff and than decide if its time to walk away.

 

[Bondo]

Re: small block lifter leplacement

Double Post....

 

[Bondo]

Re: small block lifter leplacement

I assume a 350 truck engine is a small block?

Ayuh,......<br />Same Casting,............ Bigger Bores,........Same Motor........... <br /><br />Just make Sure,....... You Match the Vintage.......

 

[pine island fred]

Re: small block lifter leplacement

Well engine only lasted about 2 miles and seized, TOW BOAT handeled it the rest of the way. Tow capt put friend in touch with a person that will replace the motor while on the lift for 3k. Must have some serious equip. to handle that. This should be fun to watch. And the new 290DP lower unit is a 1.95 ratio and was told the gear ratio would have to be changed to handle the increased HP of a 350. Any comments appreciated. fred

 

[pine island fred]

Re: small block lifter leplacement

By the way, boat is a 91 salt water boat. Should I try to have him cut his losses? Come on help me out here! FRED

 

[Don S]

Re: small block lifter leplacement

The 1.95 is the correct ratio for a 350 engine. Any changing necessary can be done with the props.

 

[Don S]

Re: small block lifter leplacement

By the way, boat is a 91 salt water boat. Should I try to have him cut his losses?

Depends on the condition of the boat. What shape is it in? You can see it, we can't. Just because it's a salt water boat doesn't mean it's totaled.<br /><br />Can he replace it with a boat in like size and condition with a working engine and a good 290DP drive for 3000 bucks?

 

[Bondo]

Re: small block lifter leplacement

The boat ain't worth Nothing,..... If it Ain't Runnin'................

He Could put a Junkyard motor in it,+ Dump it onto another Poor Unsuspecting Fool.............. <br /><br />Your Bud is in a Tight Spot,........ Not turning his own Wrenches really limits the alturnatives..............

 

[pine island fred]

Re: small block lifter leplacement

Thanks for your input guys. Putting a junk motor in it and passing it along is out of the question. He is not the type of person to do that and I would not recommend it. Just the way we are. DON S is right as it cant be duplicated for whats there for 3 grand so it looks like a new long block is in the future. <br /> My big concern is all the corrosion I saw on the transom plate adaptor when we changed the outdrive plus all of what I can see aft of the engine. He is looking for a rebuild now. Is going to be an education. Got to find a trailer and get it out of the water first. 24 ft. chaparrel. thanks again fred

 

[pine island fred]

Re: small block lifter leplacement

BONDO, You mentioned to check the vintage. Boat is a 91 which seems to be a changing point on engines. What should we look for? As long as the swap is being done we are going to go with a 350 small block. thanks fred

 

[rodbolt]

Re: small block lifter leplacement

look at the rocker covers. if they have 4 bolts down the center its an 85 up block and will require a different flywheel than the 84 down blocks with 4 bolts on the periphery.<br /> check the part numbers for differences on the harmonic balancer as the 5.7 and 5.0 cranks are balanced different. but over the years some chamges were made in the flywheels and balancers.<br />the correct flywheel and balancer MUST be used for the engine being used.<br />some of the automotive blocks after 87 wont have a mechanical fuel pump mount and if the original marine block had a mechanical fuel pump it must have the wiring modified to use a Marine rated electric fuel pump. its an easy modification but must be done.<br />like we say, your the one looking at it and all we can go by is what is typed.<br />would not be the first boat I opened up to find a junkyard small block monkeyed in place. thats usually when I close the box and send it downstream.

 

[Haut Medoc]

Re: small block lifter leplacement

Rodbolt, where the he!! have you been?... ...I know the pay sux, but you are not allowed to take off 3 weeks at a time! .....JK

 

[KaGee]

Re: small block lifter leplacement

Originally posted by pine island fred:<br /> BONDO, You mentioned to check the vintage. Boat is a 91 which seems to be a changing point on engines. What should we look for? As long as the swap is being done we are going to go with a 350 small block. thanks fred

According to the chart at Rapido, 87-96 with the single piece rear main seal 350's are a go. Take it for wht it's worth.