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Username Post: Clean out water passages        (Topic#374396)
Dans55 
Newbie
Posts: 31

Reg: 03-03-22
01-25-24 04:46 PM - Post#2866300    

I have the heads off my 350 and noticed some of the water passages, the cause of the blown head gasket were clogged. I opened them up with an awl but I can feel a lot of scale inside the hole. Is there some way I can flush them out. I tried putting compressed air in the holes but it did nothing.



 


bobb 
Super Senior Member
Posts: 6542

Loc: paradise
Reg: 09-05-03
01-26-24 07:13 AM - Post#2866317    
    In response to Dans55

muriatic acid

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


 
ForeverYoung 
"10th Year" Silver Supporting Member
Posts: 27
ForeverYoung
Age: 75
Loc: Orlando, FL
Reg: 05-01-08
01-30-24 04:43 AM - Post#2866419    
    In response to bobb

To do it right, you would really need to lift the motor out, take it apart and have the block hot-tanked, assuming they even do that anymore.
The next option would be to put the heads back on, rig up some sort of radiator hose connection between the water pump outlet and thermostat inlet (remove the thermostat) and figure out a way to spin the pump to circulate a cleaner through the block.
Just my opinion, of course.



 
Dans55 
Newbie
Posts: 31

Reg: 03-03-22
02-10-24 05:30 PM - Post#2866789    
    In response to ForeverYoung

Thanks. I can get the hot tank done in my area. However, before I do that, going to pull the oil pan off to see if it's 4 bolt. If not, not going to bother. Right now got to get a tow out of my small garage, get the car turned around facing the front.



 


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