Member
Posts: 26
Location: Wylie, TX |
I finally replaced the bad radiator in the car, new thermostat, system flush, and added and aftermarket temp gauge to see how things were running. I popped the cap to see how the coolant level looked and I have a brown sludge everywhere, it looks like melted chocolate. I fear a head gasket issue unless anyone else has any ideas?
Also, if the car sits and idles the temp gets up to 170ish. Once on the road going faster than 40 the temp plummets to 120-140. This is on a 55 Firedome with the original 291 motor.
Dan |
Wise Old Village Idiot
Posts: 3591
  
Location: Dellslow, West ("By God") Virginia ! | 55DesDome - 2008-12-05 6:28 AM
I finally replaced the bad radiator in the car, new thermostat, system flush,
Dan
Does that include back flushing the heater core, with the heater hoses removed from the motor ?
Also does that mean you took out BOTH, block drain plugs, and back, and power flushed the block?
That 'brown mud' in cooling systems is old A'freeze/coolent/stopleak/ect, left in the system too long!
Cooling systems should be dissasembled and back flushed and new A'freeze every two years. How many people do that? Hardly none.
CORRECT way to back flush a colling sys, is partially like you did, remove as much as possible, no w'pump or t'stat on the block. Both block pugs out, stick a water hose with as much pressure as possible, including some air pressure, in ALL holes!
Where both heater hoses went into the block, where the water pump went in the heads/block, in both of the block drain plugs.
Same way with the heater core, in and out several times in both hoses.
Then only after several times both ways, untill you get clear water, blow as much air in each hole aspossible, then high pressure hose again!
Mix your A'freeze with distilled water, 50/50, or 60/40 A'freeze to water.
Since you installed a new rad before flushing the rest of the sys clean, you need to take the rad to a shop and have them boil all of that 'mud' out that is in there now.
Even remove your heater core and have the shop boil it out now. |
Brown sludge in coolant
