FCC DIY gt40 help

[jeffkuk]

Can anyone post a link to a good DIY for changing the fuel filter in the FCC on a 1998 210 gt40?

I've been searching and can't seem to find a complete one. Does it thread on clockwise? Need to
Bleed any pressure or anything? Filter in hand and going to work on it today. Thank you very much.

Jeff

[DanielC]

First drain it. There is a pipe plug with a 7/16 head on it, that is the drain. It holds about a quart of gas, best to catch it in a container, and not let it spill in the bilge. A container small enough to get under the FCC, may need to be poured out, and filled again.

The body of the FCC does unscrew clockwise, viewed from the bottom. it probably will be very tough to start turning, you need a good high quality oil filter wrench that fits it. you may have to figure out a way to brace the bottom of the FCC, because of the torque needed to start it turning.

Once the cannister is unscrewed, pour the remaining gas out of it. The filter may be stuck in the cannister. Use a long screwdriver up through the drain plug hole to push the old filter out.

Check the hose from the high pressure pump, to the FCC mounting plate. Sometimes they degrade, and leak. Check for fuel leakage on the fitting the electrical wires, for the High pressure pump go into the FCC.

Remove the old "O" ring from inside the FCC mount.
Put some grease on the new "O" ring, put it up inside the FCC mount.
Put the new filter on the bottom of the high pressure pump.
Put some more grease, a light film on the threads of the cannister.
Slide the cannister over the filter, and screw it back on the FCC mount. It will turn easy at first, and then you will feel resistance as the "O" ring seats in to the proper place. Tighten the cannister snug, do not make it as tight as it was to remove, unless it came off really easy.

See this thread.
http://www.planetnautique.com/vb3/sh...=fuel+pressure
It shows you how to check the fuel pressure. In this case, you probably do not need to check the fuel pressure, but it shows you how to run the fuel pumps without running the engine. That way, you do not need to supply cooling water to the raw water pump, and if there is a fuel leak, the engine is not running, complicating the problem, and less of a chance of a fire.

You can also supply water, and just start the engine, or float the boat, and do the same. but watch the FCC for fuel leaks especially the first time is is ran after the fuel filter change.

[jeffkuk]

Thank you very much Daniel. I ended up getting it free using a husky strap wrench and it worked very well considering the stories I've heard.

Thanks again,
Jeff

[jeffkuk]

Ok more help needed... Still can't get the boat to stay running after replacing FCC filter. It will turn over and die right away... However if I keep the starter engaged it will run until I let the key go back to run position And then it will die again. Seems like an ignition problem but can anyone else's he'd some light? I thought it was starter solenoid, replaced tha, no fix.

Help please!

[DanielC]

Put the safety lanyard back on.
Possibly the wires on the back of that switch are loose, but way more often, it is just the lanyard off the switch.

[jeffkuk]

I don't know how you knew that but thank you again for saving further frustration. The lanyard was on but the wires in back were loose, I pulled them and reconnected and it's running fine.

Thanks again

[DanielC]

Almost everyone with a GT-40 has experienced the same problem.
the safety lanyard cuts off fuel to the engine, I think by both removing power to the fuel pumps, and stopping the injectors from opening.
A cranking signal overrides this function in the engines computer, so the engine does run, as long as the key is in the "start" position.