1990 johnson 200 inner exhaust housing replacement/breakage

[anthony714]

2 part question..
1- the inner exhaust housing on my 1990 johnson 200 gt developed a "hole" in the upper part , about the size of a quarter/half dollar. dont know why but all the pieces were sitting on the water pump. im thinking this may be why my power was down???? anyone seen this before?
2-looking for a replacement. the "exact" housing per omc is different than say a later one from a 92+.........the 92+ ar eway more common and much cheaper. anyone know if they will swap? any benefit to a newer one? they run different part #s so there somne difference?

[racervboat]

Any damage to the powerhead? sounds like high exhaust temp to me?

[anthony714]

no damage that i can see...engine was running ok..compression still even...

[mn808gade]

what did the pump look like

[racervboat]

for a 20inch motor 1990 part # 0338598 / 1993 is 0338597 one number off so they changed something and the cast is like 100.00 more but not availabla new?

[anthony714]

yes, i fgound them new still.. the $100 is the real question.. if i dont have to dump 100 for the same part??????????? pump started to melt, or at least the upper housing. last time out water pressure was 30+psi at wide open

[racervboat]

were the pieces on the pump melted alum?

[racervboat]

On ebay the 93-05 is dirt cheap only one for a 88-92 is 200.00 just get yours welded back up for squat .jmo

[anthony714]

[No. More like chunks,bits,pieces. No signs of melt


QUOTE=racervboat;3011206]On ebay the 93-05 is dirt cheap only one for a 88-92 is 200.00 just get yours welded back up for squat .jmo[/QUOTE]

[anthony714]

I don't care to wrld,rather get new. Dusky has it new for 130...90...was thikng maybe 93 +better?????power????

[racervboat]

looks like it won't fit ? diff part #s don't know for sure the diff.

[anthony714]

Don't know if it will fit. Don't wanna break it down, buy a part and find out hard at it don't fit. I'll just get the new one from dusky. I'm more concern wht i got a hole



looks like it won't fit ? diff part #s don't know for sure the diff.

[racervboat]

Exactly what im saying why is there a hole in it?

[anthony714]

I don't know. Kinda reason 4 the post. I. Not an engine guru

[racervboat]

Can you show a picture or is it still together?

[anthony714]

It's in storage till march