temp gauge for v4 block

[plugga]

hi, I want to fit a propper temp gauge to my <br />1969 85hp v4, Would it be better to fit the sensor inside the water jacket of the head or mount it to the block? <br /><br />thanks <br /><br /><br />1969 evinrude 85hp

 

[Droll]

Re: temp gauge for v4 block

On my engine the temp switch did not work , so it was replace by a modern temp feeler ( made adaptor )<br /><br />

<br /><br />Instruments<br />

 

[plugga]

Re: temp gauge for v4 block

thanks for that, nice setup<br />i'm thinking that i might use the hole where the choke solonoid cutout switch goes (top of the block)<br /><br />the o/t warning switch on mine works fine so i will leave it. <br /><br />What temp does your motor run at?<br />also did you have to fit a regulator to get the gauge working accuratly?<br /><br />thanks

 

[Droll]

Re: temp gauge for v4 block

What temp does your motor run at?<br />

Don´t know , the gauge only shows temp high/low ,no numbers .<br />( runns at correct temp( test = 3 sec ,fingers ,top of the head )).<br /><br />On this pic , I got some problems with the water pump , so it did run to hot .<br />When I corrected the problem the gauge stays at "12" oclock , drops down to 10 - 11 oclock at idle , max temp running WOT at 1 oclock .<br /><br />Will replace the gauge later , want the exact temp .<br /><br />

did you have to fit a regulator to get the gauge working accuratly?

No ,these gauges will work with 9 > 18 V , got internal regulator ( Teleflex ).<br /><br />You might get some info here at Teleflex support site <br />The basics are the same on other brands .

 

[oscar boy]

Re: temp gauge for v4 block

I rebuilt a 115 v4 about 4 mounts ago and while I had the heads off I drilled and tapped the top of the heads so I could install a temperature sending unit (1/8" npt) for and electricial temperature gauge. I drill and tapped the top of the head at the same location the repair manual instructs to check the temperature with the temperature sticks.<br /> I have a sending unit on each head but only one gauge and I use a toggle switch to check the left or the right side.<br /> Both sides are running about 130 degrees.<br /> I also installed a water pressure gauge and I connected it to the outlet for the tale-tale line.<br /> Another thing I did was to vent the engine block on the right side. This is done by drilling and tapping the block (1/8 npt) on the hibhest part of the block. This prevent a possible air pocket and cools the voltage regulator. This vent line is connedted to the tale-tale outlet. <br /> I will take a few photos and try to post them, i I haven't had much success doing photos

 

[oscar boy]

Re: temp gauge for v4 block

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[plugga]

Re: temp gauge for v4 block

Thanks everyone for your help.<br />I found a 1/8? screw plug on the upper starboard side (it goes into the water jacket) of the block which i am going to remove and plumb a line from it as a tell tale. I am also going to run this water via a temp sensor on its way out.<br /><br />oscar boy, if you can figure out the camera i would like to see the photos.<br /><br />Thanks

 

[oscar boy]

Re: temp gauge for v4 block

I have the camera figured out but I don't know how to post on the forum.