Won't Burp!

[Superdave]

Dave... You could get a different thermostat that doesn't block the coolant bypass. That would allow the coolant to circulate through the block and back to the water pump until the engine is warmed up. The new thermostat just needs to be the correct diameter and proper temp. As you can see in the pics, the stock t-stat has a section on the back that blocks the coolant bypass to force the coolant through the heater core. Just match up a t-stat without that section. And as I said before, a tiny hole will help with getting trapped air out.

I'm gonna drill a hole tomorrow and see how that works out.. it's just a PITA because my header crossover goes right infront of it

[Superdave]

welp, i removed the disk at the bottom of the thermostat so there should always be water against the back of the thermo. then drilled a small hole through it for the air to escape and it's still having issues. Seems to burp alot better now but it still gets hot, bubbles out a half gallon or so, sucks in what's left in the tank.. i refill and it happens over and over...

i even drove it around for a while with the cap off, still no go.

i guess next is to install some Beretta 3100 heater core lines and hook the core up.. It's new, i might as well use it..

[IsaacHayes]

lol Hopefully that will solve it since you'll have stock flow.

[CNCguy]

Did your t-stat open and the top hose ever get hot? If the t-stat is opening, I would assume that you have other issues besides trapped air.

Also , it is best to leave your cap on since the boiling point of water is raised if you increase the pressure it is under. A mix of antifreeze/water under 15psi of pressure has a boiling point of 265 degrees. http://findarticles.com/p/articles/m...08/ai_n9294683

[Superdave]

Did your t-stat open and the top hose ever get hot? If the t-stat is opening, I would assume that you have other issues besides trapped air.

Also , it is best to leave your cap on since the boiling point of water is raised if you increase the pressure it is under. A mix of antifreeze/water under 15psi of pressure has a boiling point of 265 degrees. http://findarticles.com/p/articles/m...08/ai_n9294683

yah, the top hose gets hot.


Now this is the strange part.. i boiled the thermostat on the stove and it never opened, it's the stock 3500 one so i'm assuming it's 212F or so.. but i noticed what sounded like a large click in the block after i'd shut the engine off.. it wasn't a normal heating/shrinking ting sound.. more like a valve opening. I've never been able to hear that before...

I'm planning on picking up another 180F thermostat today since i lost my old one. I have a chip programmed with the right on/off temps as well..

[IsaacHayes]

Oh no that was the block splitting in half! Don't worry it just gives it more character. hehe Yeah 180 that sucker!

[Superdave]

welp, i fabbed new hard lines out of pieces of scrap last night and routed it pretty nicely... it's looped to itself so no heater core..


It burped first try today, i'm not sure if it was the install of the new thermostat or the heater core lines but it's all good now!


still running a little warm (about 3/4 gage) but that's to be expected when running all water.. i'll drain a gallon out later this week and dump in some green stuff.

Thanks guys for all the suggestions!

[IsaacHayes]

Yea! I bet it was the lines.

[scoopy03]

yah, the top hose gets hot.


Now this is the strange part.. i boiled the thermostat on the stove and it never opened, it's the stock 3500 one so i'm assuming it's 212F or so.. but i noticed what sounded like a large click in the block after i'd shut the engine off.. it wasn't a normal heating/shrinking ting sound.. more like a valve opening. I've never been able to hear that before...

I'm planning on picking up another 180F thermostat today since i lost my old one. I have a chip programmed with the right on/off temps as well..

i thought 192 was highest stock temp. thermostat iirc.

[Guest]

Connect the heater core or loop the heater lines, the coolant flow thorugh the heater core helps burp the system.

Other than that, I really don't understand why you have so much trouble, it takes me about 5 minutes, maybe up to 15 minutes to completly burp the system. *shrug*