Converting from carb to efi..invader 204

[bransjeep]

hey guys, im new to the forum and looking for insight to my spring project to get this thing on the lake again..its been 4 years, the built up original 350 ($8500) blew because a mechanic forgot the canm retainor..so it left my fam Sh*t out of water, well my mechanic skills and ability to work gew tremendously and I am going o swap a new motor in for the boat, what will be goin in is a 2000 5.7 gs efi its complete with everything, pumps computer all that jazz, i will be updated this with pics as i go but i definitly will need some help from you experts out there! so tommoro i will be extacting the motor from the donor boat and get as far as i can with the rest of the components. Im sure this has been done with different models of boat. so any advice or tips before i tackle this beast?

 

[Bondo]

Re: Converting from carb to efi..invader 204

Ayuh,... Sounds like a straight forward swap,...

Good Luck...

 

[Daleg70]

Re: Converting from carb to efi..invader 204

Mr Master has it right, but I might add a few things in case you are not really familiar with the Volvo EFI --- everything you should need is on the engine, the computer, relays, and injectors and such. Volvo uses a one hose sytem so there is not return to a tank like some EFI's (at least on my year which I just removed and returned to my boat -- 2003) if you had a Volvo in there before the engine electrial connector should be similar (check the pinout to be sure)

I suggest you run the engine on a test stand (ie some reasonaly solid engine mounts and blocks) on the hard before you put it into the boat. It is not that difficult and will ensure it runs before you go to all the effort of installing it.
You can get the key and ignition input at the engine electrical connector. You also need water, a battery to the starter, and something for the power steering if it is a serpentine belt (disconnect belt if it is a separate belt)
Put in a separate mechanical oil pressure gauge right near the distributor, and if you do not get oil pressure after some cranking, then remove distributor and prime oil pump with electric drill and replace distributor.

I would trust that you are reasonable mechanically inclined and can handle the things mentioned. (along with engine alignment)

good luck

 

[bransjeep]

Re: Converting from carb to efi..invader 204

thanks guys..im glad to hear everything is on the motor, the engine runs it has 56 hours on it.. lol i am however not familiar with engine alignment??

 

[bransjeep]

Re: Converting from carb to efi..invader 204

this is in the wrong forum..and i didnt even realize it..but the 5.7 GSi will be mated to the original volvo pelta DP 195, aslo the 5.7 has closed cooling on it... should i leave that? i want to..but what else will need to be dont to make it work

 

[Don S]

Re: Converting from carb to efi..invader 204

The 1.95 drive will work, and yes, keep the closed cooling. I will post some more information for you a bit later.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

^ thanks man, I appreciate it!

 

[Don S]

Re: Converting from carb to efi..invader 204

Ok, to make any sense of all this, we're going to need full model numbers or serial numbers of the old engine and the new engine. not just part of numbers. 5.7GSi is missing the last letter or letters that tells all about the engine.
Also need to know the type of drive, not just DP, there are several different DP drives.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

my drive numers are
DP-A
854021
NO: 3102052958

engine
57FCPBYC

engine looks to have the single fuel line at the pump..that means there is no return line correct and how does the closed loop cooling work? will it work with my Stainless Marine exhaust?

 

[Don S]

Re: Converting from carb to efi..invader 204

Sounds like your boat has been repowered before, or the drive changed. The DP-A outdrive was well before the BY model engine you have in there now. I am assuming the 57FCPBYC should be 5.7GSPBYC as there was no such thing as FC.
Will need some pictures of your new exhaust system and your old to determine which exhaust system is presently used. The manifold and risers are completely different on the BY eng (98) and the exhaust system used with the DP-A outdrive.

One thing I know for sure, is you will have to remove the coupler from the new engine, and install the flex plate, you will also need to install a pilot beaing in the crankshaft for the primary shaft from the flywheel cover. IF you don't, you will destroy the flex plate and the flywheel cover in short order.

I have done similar changes, and they work fine, but you can run into a few head scratchers in the process. Electrically and fuel wise, not problem. Yes, you only have one fuel line, marine engines seldom have return lines to the tank.

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Yes this engine is out of a different boat. 98 seaswirl iirc, i have the boat and its complete. It was hit in the front though so its messed up, however everything else is perfect, the invader boat is my dads.. Now mine. It originaly came with the 5.7 carbed and the DP-A. The 98 efi motor is going in the invader. The boat is practicly pristine.. Complete new interior, stereo, flawless gel coat! I want to do this right because im sort of anal about my stuff and i cant stand issues on the water so i want it to be done correctly. The stainless marine exhaust from the invader doesnt use the original system. It exits on each side o the boat out of 4.5 in tips. I have plenty of pics. I just dont know how to post them..

 

[Bondo]

Re: Converting from carb to efi..invader 204

I have plenty of pics. I just dont know how to post them..

Ayuh,... There's a couple of "How To"s at the top of the Tech, non-boating forum....

 

[Tail_Gunner]

Re: Converting from carb to efi..invader 204

:redface: Opps never mind

 

[bransjeep]

Re: Converting from carb to efi..invader 204

:redface: Opps never mind

Lol what?

 

[bransjeep]

Re: Converting from carb to efi..invader 204

here are some shots of what im wrkin with..excuse the dust and snow on the motor..it snowed last night and i havent pulled it yet to clean and go through it..but the others are shotss of the exhaust,risers , and manifolds

 

[bransjeep]

Re: Converting from carb to efi..invader 204

today i went out and started removal..i got most of the main wire harness disconnected as well as a few other misc. items do i need the origina harness for the motor or will the invaders work somehow?

 

[bransjeep]

Re: Converting from carb to efi..invader 204

Don S - if you see this what will need to be re used at the rear of the motor? im a littile confused on what you mean, today i went in the garage and grabbed the old cover and flex plate and flywheel..im not sure if the flywheel will be needed but what is this ordeal because like you said there are some head scartchers and this is one of them. This is my first marine swap so many hellp is appreciated thanks

 

[Don S]

Re: Converting from carb to efi..invader 204

You will need the flex plate, and the pilot bearing that goes in the end of the crankshaft. Shouldn't need to change the flywheel. Then you bolt the flywheel cover on. I would suggest you replace the bearing in the flywheel cover before installing. Cheap insurance, and the only way to replace it is to remove the engine first.

 

[Tail_Gunner]

Re: Converting from carb to efi..invader 204

I see you have aftermarket exhaust...Do you intend to modify the motor?

 

[bransjeep]

Re: Converting from carb to efi..invader 204

I had it on the old motor. It was a pretty built up 5.7. Dart heads, roller rockers, competition cam/ crank etc... But i want to keep this one stock for simplicity. But maybe after this season of seeing how the EFI runs ill add the rollers and heads...ill see. But when i have the new motor on the crane ill go through it and figure out the fly wheel stuff