finding which water pump kit

[COREY_1]

Hi.. I am new to boats.. been reading here alot, i bought a 1998 Campion Chase 580.. it has a 5.7 EFI.. i took it out to test everything.. seems to run great, but i noticed when i have the trim up the water temp starts to go up.. then when i would trim down it would drop the temp instantly.. then we went and fished for awhile.. then right before we were going to leave the temp went up and really didn't want to come back down.. i opened up the motor cover and nothing reallys seems to be hot.. but i am kind of thinking the impeller could be bad.. which could be my fault.. when i bought the boat i started it for just a min. with no water hooked to it.. i wanted to make sure it ran.. my boy said some water came out the back.. but i guess it could of did it in... anyway.. i am wanting to buy a water pump kit. just want to make sure i get the right one... it has a alpha one stern drive.. the numbers i found on the drive are.. # 1.47R and 0L104452 so if anyone can tell which kit i need and maybe a link to a good site to buy from.. and any good how to on it would be great... i am sure i can do it with a few pictures and some poniters... Thanks for any info and help... Corey