199x mariner 200 help please

[holidayjay]

long story short... boat was running hot at low rpm so i picked up a set of stats and new water pump kit. the old stats were seriously nastified..dont think they were ever changed. the bore that the stats sit in decayed around the edges so after replacing them and water testing one was dribbling and the other slightly more.

from what it looks like to me is the housing is part of the cylinder heads..i think.. the head torque specs are in raised letter on the head. i dont know where to find serials numbers to find out my engine . has anyone come across a problem similar to this? does anyone make an oversized stat gasket? would i be better trying to maybe jb-weld where its pitted and file it flat?or am i looking at putting a new set of heads?

i didnt run the boat for very long hot so i hope there isnt much damage.i found out my alarm isnt working in retrospect i dont beep when i turn the key on. after spending so many years racing cars ive become quite the gauge watcher

maybe pictures of the motor will help identify? im gonna try to go get some

not that it matters but its a 21 searay laguna cc 200 mariner offshore

thanks in advance
jay

 

[holidayjay]

Re: 199x mariner 200 help please

hopefully someone can shine some light here

 

[sxmerc]

Re: 199x mariner 200 help please

Depending on how bad the pitting is, you might have some sucess using a little RTV sealer to fill in some pitting. I think you'll find that JB Weld will not stand up to the contant expanding and contracting of the aluminum that goes on in this area. If the RTV does work, you've only bought yourself a bit of time. I'd look around your local shops for a blown motor with decent heads. My two cents.

 

[holidayjay]

Re: 199x mariner 200 help please

Depending on how bad the pitting is, you might have some sucess using a little RTV sealer to fill in some pitting. I think you'll find that JB Weld will not stand up to the contant expanding and contracting of the aluminum that goes on in this area. If the RTV does work, you've only bought yourself a bit of time. I'd look around your local shops for a blown motor with decent heads. My two cents.

thanks for the reply, i wonder if i made a rubber flange gasket that fits perfectly around the stat gasket would work

 

[holidayjay]

Re: 199x mariner 200 help please

btw heres my biggest problem..every resource ive looked refers to the transom sticker for the serial numbers but some idiot peeled it off.makes me wonder if the motor was stolen or something..ugh i hope not

 

[sxmerc]

Re: 199x mariner 200 help please

Almost on top of the stbd. cylinder bank, there should be a quarter sized aluminum plug pressed into the block, with your serial number stamped into it. If the plug is there, you got your number, if it has been removed... your guess is as good as mine.

 

[holidayjay]

Re: 199x mariner 200 help please

awesome! you are the man!

heres a pic of what i see..i remember seeing a thread on here to find out the year

 

[sxmerc]

Re: 199x mariner 200 help please

Sweet!!

 

[holidayjay]

Re: 199x mariner 200 help please

What would happen if I took the poppet valves out ? I'm in Florida and the boat is never in water less than 70 degrees