OMC Gearcase Exhaust Question

[LSaupe]

Just getting ready to re-install my gearcase on my Johnson (1984 X-flow) and saw a part in the shop manual that my engine did not have. This the exhaust housing transition piece between the mid section and lower unit. The call it the "lower exhaust housing". Detail "A" on page 6-120 of the 1984 shop manual. OMC Part # 0327796.

This was not in the engine when I pulled the lower unit. Hence why the pump housing (and everything else) was covered in thick carbon.

Is the item typically discarded (as a performance change) or is it a must have?

This may have also been one reason I was geeting so much water and exhaust gases up my shift tube into the engine cowling.

Going to look for a used one now.

Any input on this is appreciated.

Many thanks,

Larry

[wideglide55]

You should definitely put one in,all that heat around the water pump and seals is not a good thing.

[Riverman]

Engines with open exhaust of course do not use them. But in your setup there is no disadvantage to not using it.

[Forkin' Crazy]

I'd put one back in.

[LSaupe]

Thanks Guys.

[LSaupe]

Any of you guys happen to have one laying around?

Larry S.

[roadkill636]

I got one for a v6 ,,$20 shipped to ya door,,,,,,any one know ifit is the same as a v4?

[racer]

Same part

[mindblock]

You should definitely put one in,all that heat around the water pump and seals is not a good thing.
Agreed water will burn if it hits high temps.. No other material needed.. I saw it once and thats all I needed.

[Action Dave]

Agreed water will burn if it hits high temps.. No other material needed.. I saw it once and thats all I needed.


Who the hell is this crackhead?:confused: :nonod:

[Riverman]

I have a spare one too.

[LSaupe]

I think I have one sourced. Waiting to here back on a PM.

Thanks guys,

Larry S.

[roadkill636]

lsaup you have a pm

[Tom D.]

Give Tom at Albany Marine Supply a call at 518-434-4421 he may have what you need, he's an OMC nut. Tell him Tom D. sent you.

[LSaupe]

Hey Tom D. Do you ever run on the Mohawk? Can really tell by your signature image, but remember seeing a a Black one (with orange and yellow) flying down through there last year.

Larry S.