Inboard running cold

[CHANCE1234]

Good afternoon gents, i have a 23 straight inboard and after all the problems i had with her overheating at the biggining of the season, now the temp hardly rises at all. It has been doing this since i fixed the overheating issue. What would be the likely cause of the this? i checked the thermostat druing the overheating problem and it worked fine. Also, what could happen if i continue to run with a cool engine. thanks for any help.

Elijah
(Osprey)

[oldfielder]

Sounds like it may be the sender if everything else is going fine. Feel the manifolds for heat. If they are warm your engine is coming up. You can get (borrow) a mechanic's thermometer to test the temp. Is the gauge coming up at all? I would trouble shoot sender, wires to gauge and gauge itself and then go backand test your t-stat again.

[RODMAN]

At least its running good,Sounds like its the sender.Disconect the wire and see what the guage, then ground the wire and see what the guage does,it should swing from one side to the other,if it does not swing and you know the wire is good the guage is no good,if it does swing the sender is no good, good luck. Also I was out at crab ledge an got lucky,Sunday 13,no birds,whale,but got a 51" tuna app.75lbs and a short one.Photo soon.going to try the bay next.

[Miles Offshore]

Hey Elijah, good to know she is running good!!! Better too cold than too hot!!!!! The only down side of running too cold is a little bit more gas burn (from what Im told anyway). Sounds to me like the sender is suspect also- if you recently changed it make sure it is in a water jacket on the intake instead of a air/gas jacket. That will make it do the same thing also (been there,done that). Let us know - my boat is slowly going back together now- as soon as my new fuel tanks arrive I should start making solid progress- see ya- craig

[CHANCE1234]

Now, by sender what exactly do you guys mean? the gauge moves slightly if a go WOT. Other than that i notice no movement. It shouldn't be too price to just replace everything and be done with it right? Rod man, congrats on the tuna, i haven't been out in the bay for a while, trying to save some money for the fall/winter cod run. I heard this past week, was the best it has been in a while on the SW corner of stellwagon. Miles, lets see some more porn! How much were the new tanks, i will be replacing mine next year. Looking forward to the pictures. Good luck and any more idea about the temp thing would be great. Thanks guys.

[RODMAN]

The sender is the temp sensor on the engine,you stated at wot the temp moves,sound like the thermostat is opening to early poss.stuck open a little allowing the engine to run cool.When you had the overheating did you change the thermostat? If not I would do it now.Heard the same on the tuna.

[nestorpr]

I agree, it's either a bad or incorrect thermostat, the sender, the gauge or a bad ground or wiring.

[Old'sCool]

If the coolant level is very low it will do the same. The sending unit only works accurately if submerged in liquid, not air.

[CHANCE1234]

Just to be sure, when i removed the thermostat at the biginning of the season to test it i was pretty sure i put it back in the same way as i took it out. This thermostat is shaped kinda like a pyrimid. Which way should the point of the pyrimid be facing, up or down. I can't remember now which way i put it back in but i will check when i found out which was is correct. Thanks guys i will check this stuff out and let you know when i can.

[RODMAN]

Sounds like you put it in the right way because if you installed it backward it would be overheating.