Maristar 230 5.7L LTR puzzle

[Pointman]

Long story but I retrieved my boat from a bad service experience at a local repair shop and replaced a blown head gasket myself. I am almost done re-assembling everything and I have one empty plug in my block above the oil filter.

See this pic:

https://www.amazon.com/photos/share/...ltrtqPd3o0n5sA
What does your boat have in this location? A plug, sensor?

Thanks

Pointman (East Tennessee)

[André]

Do you also have an unplug wire?
Is your oil pressure sender install?

[gweaver]

Tried to look at the photo, but nothing loads.
Not sure I'll be much help, as I have a different motor, but I'd like to see anyway.
G

[Pointman]

no. wiring harness is plugged up to everything it' supposed to be...
[IMG][/IMG]

try this link: http://imgur.com/PFnVYgV

[Pointman]

thanks for helping. I appreciate it.

[Pointman]

oil pressure sender is installed on top of the intake manifold next to where the distributor would be. (mine has the caddy coil pack ignition)

[Pointman]

this empty opening is slightly smaller than the drain ports in the block and wont accept the regular brass drain plugs. I'm at a loss as to what to do with it.

[Pointman]

here's a pic of another motor (LT1 I think)with an oil pressure sender in one port and nothing in the port that I have open on my motor.

[mtajpa]

Nothing goes in those holes. At least that's the way mine is.

OOPS just looked at your picture. Might just be a plug. I will take a look tomorrow and get a better look at mine and let you know.

[Pointman]

mtajpa your pic helps solve the puzzle. You do not have anything (far right above your filter) in the location I am worried about. Thank for the assist!

[geordie-wake]

I can confirm the threaded hole is not used on the LTR 330 engine. Im in the middle of replacing the head gaskets and manifolds unfortunately.

[Pointman]

thanks.

great pic. it helps immensely, thanks! I just put head gaskets on too. if you need part # or any help ping me!