Mercrsuiser 185HP, Unkown Serial No.

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liusigou

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Today I damaged the exhaust tube and bellows because of the lack of water. But the cylinders' pressure are still good. They are 140,140,140,130,130,140. How can I know the exhaust tube part No. and exhaust bellow Part No.?

I have noticed the tube Part No. is 32-90949-001
 

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Bondo

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Ayuh,..... Is this a 4.3l V6,..??

If so, the rubber exhaust couplers go by the exhaust riser/ elbow outlet diameter, 'n the top of the y-pipe diameter,.....
 
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liusigou

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The upper diameter is 4 inches, the lower diameter is 3 inches.
 

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liusigou

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Should I also replace the part of water shutter assembly. I can take it off. So I am concerned that it was damaged too

 

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liusigou

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liusigou said:
Should I also replace the part of water shutter assembly. I can take it off. So I am concerned that it was damaged too

Click to expand...
Should I replace the water shutter assembly?
 

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Fun Times

Fun Times

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liusigou said:
Should I replace the water shutter assembly?
Click to expand...
While it could be considered a 50/50 split of changing it out need wise, one thing would be for sure is you don't really want the old one (or new one too) to fall down as that could cause issues too in some cases.

While Volvo penta has gone away of using them, you have a mercruiser so it might be considered better to play it to the safe side and change it out while you're in there... One is so you won't have to hear the slapping noise of the metal making you think the engine has major internal issues and two, to save further issues when it falls down.

Kinda urgent help needed with exhaust shutters...

Hi all, I'm in the process of replacing my shutters after running the engine without water to the muffs. (Details leading up to the need for replacement here: https://forums.iboats.com/threads/need-to-check-shutters%E2%80%A6-any-tips.767319/#post-5866978) Anyway, I ordered replacement shutters...
forums.iboats.com forums.iboats.com

MerCruiser Engine Exhaust Water Shutters - MerCstuff.Com

www.mercstuff.com
 
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liusigou

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Attached file is my elbow, top end is 4'' and bottom end is 3'', Should I follow 3'' Exhaust System or 4'' Exhaust System?

Also
Can following link from Amazon is cheaper and Can it fit my engine?

 

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liusigou

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There is some leaking oil. But I do not know where it is from.

Can somebody help me identify this issue? The engine oil is clean and good. I am sure the engine oil is the not same as this leaking oil.

There is some oil in the second pic. Is it possible leaking from here? Also What kind of oil should I add?
 

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liusigou

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liusigou said:
There is some leaking oil. But I do not know where it is from.

Can somebody help me identify this issue? The engine oil is clean and good. I am sure the engine oil is the not same as this leaking oil.

There is some oil in the second pic. Is it possible leaking from here? Also What kind of oil should I add?
Click to expand...
Can anybody help me to identify where is leaking oil from?
 
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liusigou

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I am going to install the gimbal bearing. I'd like to know how the greese is pushed into the gimbal bearing? I cannot find the any hole from the gimbal bearing house by which can be used to push grease into gimbal bearing.

left gimbal bearing is old and I can see the new grease which I pushed in.
 

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nola mike

nola mike

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liusigou said:
I am going to install the gimbal bearing. I'd like to know how the greese is pushed into the gimbal bearing? I cannot find the any hole from the gimbal bearing house by which can be used to push grease into gimbal bearing.

left gimbal bearing is old and I can see the new grease which I pushed in.
Click to expand...
There's a grease nipple on the starboard side of the gimbal housing
 
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liusigou

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Gimbal bearing failed to be installed. See attached file. Can I pull it out and install again. it the new out ring is broken. Maybe I can put the old outer ring back. What reason caused the out ring failed to be pushed? or The gimbal bearing is in the bad quality?
 

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Fun Times

Fun Times

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liusigou said:
Can anybody help me to identify where is leaking oil from?
Click to expand...
The photo to the right with the belt to the pulley is your power steering pump... Twist the cap about a 1/4 turn and the cap should come up and there will be a dip stick attached with a gauge to check the oil levels.

While there are a few types of oil to run the power steering pump with different colors, chances are mercruiser power trim and steering fluid was used and could be within the color you are seeing mixed in with water...or you could use Dextron III automatic transmission fluid (ATF)

www.iboats.com

Genuine Mercury Hydraulic Fluid Trim / Steering Qt - 858075K01

Genuine Mercury Hydraulic Fluid Trim / Steering Qt - 858075K01
www.iboats.com www.iboats.com
The oil in the bucket is power trim fluid,
1690178534588.png
1690178602002.png

Or maybe your plastic power trim pump reservoir or fittings are leaking that run the stern drive up and down. 1690179361313.png

Time to clean and dry the bilge area under the engine really good and watch for oil leaks.

As for the bearing, if you can, 'try to pull the bearing out softly vs hammering it out if you're going to reuse it to help avoid potential damage.

Is that bearing a OEM Mercruiser bearing or aftermarket? What is the part number of it?

The housing where the u-joint bellows sits/mounts to appears either damaged/chipped out and some sort of epoxy applied. The new bellows may not seat correctly if that is the case. Come to think of it, it may have had an Bellows GHR kit installed or you may have to consider getting one yourself... GHR info here for you, http://www.ghrkits.com/GHRKIT/ghrkit.html
 
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liusigou

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Is the gimbal bearing good? A piece of edge of u-joint bellow house was damaged and I applied the silicon and hope it can work. Tomorrow I will install the bellows.
 

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