Improperly installed exhaust gasket

E

Erwin jarvis

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I just changed the head gaskets on my 98 mark viii, when i started it up it smoked like hell , out the back and from undrr the hood, and its pulling air i think .and pressure built up in the coolant quickly, im pretty sure ive installed the exhaust manifold gaskets backward or upside damn down or something. Would that cause all tge pressure in the coolant thier is no thermosstat installed. Or have i put the damn head gaskets on wrong also?
 
Erwin jarvis said:
and pressure built up in the coolant quickl
Click to expand...

Erwin jarvis said:
Or have i put the damn head gaskets on wrong also
Click to expand...

Why did you replace the head gaskets in the first place?

The 2 symptoms mentioned tell me that combustion gasses from the cylinders are getting into the cooling system.
More info is needed... to try and back track to why/when this happened.
 
Yeah... you probably should have... but if it overheated severely... you may want to check for a cracked block before attempting another repair.

Could be internal and not visable. Only option then is used replacement block... or engine.

Sorry
 
Compression test on all cylinders might tell you something.... but you need to find the engine specs to be sure.

Most engines run 120-140 psi
 
Can anyone tell me where i can buy a rebuilt 4.6 4v without breaking the bank? Ive gotta get back mobile asap or im gonna be evicted , it took me two weeks replacing the head gaskets, and probly two years off my span.
 
Go to car-part.com... and do a search by zip code... for the year, make, and model for salvage yards in your area. Type in what you are looking for and something should pop up
 
Well... the search results didn't pop up in the link above... so here's a screen shot.

Screenshot_20220406-072619.png
 
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