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Overheating problem

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Bigrod

New member
1988 Merc. 200hp 2.4
New
T stats, poppet valve, head gaskets, impeller, exhaust divider plate gaskets. Still overheats within 5 minutes. What should be my next step? TIA
 
Bigrod said:
1988 Merc. 200hp 2.4
New
T stats, poppet valve, head gaskets, impeller, exhaust divider plate gaskets. Still overheats within 5 minutes. What should be my next step? TIA
Click to expand...
I'm having same issue with 1990 v175 carburated , changed water pump housing/ impeller, both thermostats.
Not sure if poppet valve would cause over temp
Bigrod said:
No unfortunately not
Click to expand...
 
KBA said:
I'm having same issue with 1990 v175 carburated , changed water pump housing/ impeller, both thermostats.
Not sure if poppet valve would cause over temp
Click to expand...
Ok I pulled my lower just to double check my impeller. I found both upper and lower impeller housing gaskets coming apart. I’ll repost once I replace parts.
I did find my shaft has some wear where the seals are and looks like it was causing water to leak into my lower. I haven’t drained the gear oil yet but will as well as replace the shaft and bearing that has slop in it
 
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