115hp therm. reinstall question

[buddyholly]

I recently bought a new thermostat for my 1975 115 v4. The problem is when removing the housing the springs and all fell out and I am not sure how and what order they go in. When I first started the motor after buying it, it got hot so I replaced the water pump but it still gets hot fast even on the hose. Any pics or directions would be great.

 

[OBJ]

Re: 115hp therm. reinstall question

Don't know for sure but the Seloc or Clymer manuals may have the info/pics you need. Local libraries usually have them on the shelf. Might try there. Failing that, give us a post and we'll see what we can do. <br /><br />For around $35 American, you can get a reprint of the OEM service manual for your engine. Just search up Ken Cook Co., outboardwizard or marine.com. All sell reprints of the originals and also parts manuals.

 

[ddbyrd3]

Re: 115hp therm. reinstall question

You dont specify Johnny or Rude, or a model number, but attached is a exploded view of a 1975 115hp johnny:<br /><br /> http://www.ishopmarine.com/ishop/js...~A0000022~M0016872~M0016876~M0016878~C0249907

 

[DJ]

Re: 115hp therm. reinstall question

By the way, you have TWO stat's, if it's a crossflow. Not to mentioned the bypass valves and springs.

 

[ddbyrd3]

Re: 115hp therm. reinstall question

I didnt see the need for 2 T stats on the diagrams. I looked at both models and the Rude diagram and it only refers to 1 T stat...<br /><br />I am far from an expert, but again I only see the need for 1.

 

[buddyholly]

Re: 115hp therm. reinstall question

the motor is a johnson crossflow and there is one thermostat or vernatherm and the bypass valve and springs. I tested the stat and it works on the stove in a pan of water. I am just unsure of the order of installation.

 

[87Aggie]

Re: 115hp therm. reinstall question

The diagram linked to under ddbyrd3's post above shows the order of installation. Its part numbers 53, 54, & 55. Take a look see.

 

[ddbyrd3]

Re: 115hp therm. reinstall question

Did you have a temp gauge in the pot of water to measure the temp of the water when the T stat opened?<br /><br />You will want to verify that, I did the same thing you did (verified them in a pan) re-installed them into the motor and it still overheated.<br /><br />For the amount of work involved to change a "T" stat its worth buying a new one.<br /><br />As far as the order of re-assembly, the attached diagram shows the order....<br /><br />Refer to my other post...

 

[buddyholly]

Re: 115hp therm. reinstall question

I am working on trying to print the page of the exploded view but my printer wont cooperate with the web page size so that I can see in detail. Probably just write it down. No I didnt have a thermometer but the water didnt get too hot before opening. Also Ive read here about drilling holes in it. What do you think?

 

[ddbyrd3]

Re: 115hp therm. reinstall question

My opnion is this, If it was designed to have a hole in it, it would have one...<br /><br />I am sure a resident expert will have more info on drilling holes in your T stat, I would just buy a new one, your there, they are cheap, and one less thing you will need to worry about once you put it all back together for quite some time...<br /><br />Of course this is just my opnion.....

 

[Basscat 1]

Re: 115hp therm. reinstall question

I agree. I never checked a thermostat in boiling water. If ever I questioned the operation of a thermostat, I simply replaced it. I figure the motor is not worth the risk.<br />By the way, have fun putting that back in. I replaced mine a couple months ago, and its not fun.

 

[OBJ]

Re: 115hp therm. reinstall question

Party Barge....listen to Bass Cat....replace the vernatherm if there is any question about it along with anything else there that may be in question. <br /><br />You can hold the assemblies together with rubber bands until the screws are in place. Makes it a little "easier". My Rude 90hp (86') got two t-stats and two springs. Always a fun time to replace. (yea BC....not fun!)