hi this is rotary addiction I finally got my 84 gs to run by pulling it with the truck it sputtered and smoked then the tow rope fell off and i passed my dad well got it to the yard and ran it at a stand still for abou 3min. above 3k i drove down the road 5 min trip and back i pulled it up to the garage and shut it off i heard spewing in the over flow tank i checked it she was F.ing hot it is still cooling and imgoing to take the thermostatout of my 13b it should fit shouldnt it??? if its not the thermostat what could it be could it be a clogged radiator or something thanks OH yeh when the car is starting you have to hold it to the floor and under 1,500 k it has a mushy pedal what could this be and it wony rev beyond 6k when driving gets a real bad miss



Please Help me and my 1.2 liters of oil burning beast

 

Yikes.. an overheated rotary! If the radiator looks clogged up, remove it and take it to a radiator shop and have it rodded out and get a brand new OEM thermostat in there..make sure that the jiggle pin is pointed UP. A bad thermostat is the likely culprit for overheating...also check the fan to make sure it spins. Flush out the system and refill with a 70/30 mix of distilled water and coolant.
Hope your engine hasnt been terminated.

 

First thing, if your coolant is not "radioactive green", dump it...

Get a bucket and pop open the lower hose... Don't drain it around animals as it smells sweet and they drink it. It is safe for municipal sewers or septic tanks though, so you can flush it down the toilet... Set the heat **** inside the car to HOT, remove the thermostat and radiator cap.

Once it's drained, pump fresh water in through the hole where the thermostat goes. It should come out of the lower hose. Keep it flowing till it comes out clear as it goes in...

Flush out the radiator. Send it in the top and out the bottom till it's clear. Look in from the top where the cap goes. Is the radiator caked in nasty white crud? If so it's trash. If not, you still can use it.

Connect all hoses, add a new thermostat, and fill the radiator with about two gallons of water... Fire her up...

If she doesn't start, remove the plugs and crank... If water comes out the plug holes, you need the engine rebuilt. (Which is why I didn't say add antifreeze above...)

If she starts, warm the car up. If the coolant comes out the overflow bottle immediately, you need the engine rebuilt.

If the car overheats again, squeeze the upper radiator hose. Have someone give it a little gas. You should feel a slight pressure as the engine revs... If not, Replace the water pump. If you feel pressure and you're using an old radiator, junk the radiator.

How long has this car been sitting? I'd replace the radiator on principle if it's been longer than a year.

 

Replace your radiator cap

Your radiator cap is the most improtant and overlooked part of a modern cooling system. It is what controls the pressure withing the cooling system, when it wears out the pressure wont build to what it is supposed to be, this allow the coolant to boil at a much lower tempmakeing it to loose cooling capacity and boil into the overlow tank tank.

Just becuase colant deosnt seep out of the cap doesnt mean that it isnt bad either.

I cant say it enough, if you have probs with it boiling over , REPLACE THE RADIATOR CAP!!!

 

Doesn't somebody make a thermostat that 'fails' in the open position?

 

yes, at autozone, just picked one up for my Conquest. Ever rad or something like that. Can't recall the exact name. cost 11.95

 

A couple of points: make sure that the thermostat is the "bypass type", and it's easier to drain the radiator by removing the plug on the lower left side of the center housing right below the oil filler tube.

 

Good thread. I had overheat problems last summer. Replaced radiator, hoses, pump, thermo, heater hoses, etc. One at a time. Would have been easier to just do them all at once. Heater hoses rot from spurious oil; get the ones that fit properly, not that all-purpose junk. And replace the radiator cap: makes a big difference (get the right ATM rating).

B