1987 Force 50hp Cooling Problem

[jmd6280]

we have taken this motor completely apart following the water flow thinking it was clogged up, it is very clean, the impeller looks new but buddies say the splines felt weak to them, we get no water to the head, could it be a head gasket, we also took the thermostat out to insure water flow, it seems we are not getting water from the pump any idea's Thanks

 

[WillyBWright]

Re: 1987 Force 50hp Cooling Problem

The vanes should be rather flexible. What you don't want is stiff or permanently bent. Make sure the pump is engaging the pipe and make sure the pipe is in the grommet under the powerhead. The only other thing that comes to mind is pump housing wear. Look at the top. It should be flat. After time, impellers eat a groove in the housing which greatly reduces it's efficiency. I doubt it's a head gasket, but never say "Never".

 

[jmd6280]

Re: 1987 Force 50hp Cooling Problem

thanks for the info willy

 

[eurolarva]

Re: 1987 Force 50hp Cooling Problem

If you have the type of impeller that has what looks like a hex brass center verify the glue that connects to the rubber has not gone bad. I had this happen on a new impeller and the brass insert spun inside the impeller but the impeller would not spin. Also make sure the impeller pin is in the drive shaft and the impeller is mounted on it.

 

[roscoe]

Re: 1987 Force 50hp Cooling Problem

What eurolarva said. The impeller should not spin on the driveshaft.

 

[jmd6280]

Re: 1987 Force 50hp Cooling Problem

well after taking this thing apart 3 times we figured out that the previous owner(or whoever worked on it) did not replace gasket on each side of waterpump plate....now the problem is WHERE can a guy find a waterpump kit for a 508m7c 50 hp force...ive tried just about everywhere...can someone tell me a good place to buy parts for these motors...oars are starting to sound nice

 

[eurolarva]

Re: 1987 Force 50hp Cooling Problem

Here is a link for complete parts specific to your motor. You should be able to find whatever you are looking for here.<br /> 50 HP parts

 

[jmd6280]

Re: 1987 Force 50hp Cooling Problem

EURO you the man....that site is just what the doc ordered...thanks very much....this site is too awesome....thanks again for your time and expertize

 

[procraftmark]

Re: 1987 Force 50hp Cooling Problem

euro it looks like i might be getting that same motor ,when you go to that sight it lists "alot" of parts as unavailable. Are parts really hard to find for that yr. force? and is it a decent motor?<br /><br /><br />thnx<br />mark

 

[eurolarva]

Re: 1987 Force 50hp Cooling Problem

Parts can be found on the internet and on ebay. If the merc site says they no longer carry it copy the number down and do an internet search for the part number. There are alot of other places that sell aftermarket parts. Most of the wear parts that you need are still availible. There are always parts to be found on ebay..

 

[rogerwa]

Re: 1987 Force 50hp Cooling Problem

Procraftmark, I owned a 50hp force. it ran and did not strand me, but it was tempermental. Given the choice I would buy something else. A number of people will give you the good and bad of it, but in my experience I felt it was a weak motor. It smoked bad and smelled. It is not uncommon to have faulty CDI modules, head gaskets, starters, stators, etc.. I knew a guy who had the exhaust problem listed above and he could not get rid of it. He ended up trading the motor. You will find that most rigs with a Force hanging off the back will be significantly cheaper than rigs with a merc or ev/john on the back. When I sold my boat with Force on it I would have people walk up and not look any farther. All they had to see wass the Force and they kept walking.<br /><br />They have a rep. Some earned, some not. If you want to enjoy trouble free boating this may not be the package for you. It very well may prove to be trouble free. If so you got lucky..