Need impeller kit for 1982 40 merc

[Redkneck]

I looked in the link posted in an earlier thread for Crowley Marine, but I must overlooking it. Also should I remove the thermostat in this motor (warm down here in ms, and I dont run in the winter time). Fired up the engine after sitting up for 2 years but did not get a stream of water after a couple minutes or so. Was going to replace impeller anyway, just wanted to make sure it would run first.

Here's the original thread, in case you need a model number:
http://forums.iboats.com/showthread.php?t=542002

Thank you all as always!

john