1985 175 merc power head removal help

[mas942]

I cannot pull the powerhead on my 175 merc. Removed all bolts and unhooked everything won't budge. Removed two nuts in front, two on each side in rear (4 in rear) 2 on each side on exhaust/lower case. All where nuts on studs. (10 nuts total) Am I missing something?

 

[Don S]

Re: 1985 175 merc power head removal help

Could be the gasket is holding it on, have had a few (saltwater boats) where the corrosion around those studs held better than the nuts did.
Usually (when lifting with a hoist) I just put some tension on the hoist and rock the chain back and forth and they usually pop loose. Sometimes with a lot of corrosion, you have to use a torch to heat the housing around the studs (while rocking the engine).

 

[mas942]

Re: 1985 175 merc power head removal help

Tryed hanging it and using a rubber mallet and sharp putty knife on the gasket. I'll give heat a try.

Do the studs on the side of the lower end run all the way into the power head or are there just 6 studs total holding it.This way I'll know if I have to heat those too, their already unbolted.

Thanks Mike

 

[mas942]

Re: 1985 175 merc power head removal help

Thanks Don, its apart only took 4 hrs of heating, wedging wd and heating again until it started to move the long bolts we're in like they were welded.Thanks again, Merry Christmas

 

[Don S]

Re: 1985 175 merc power head removal help

Clean those holes out completely and paint them. Then when you put the PH back on, put grease on those studs, then if you ever have to pull it off againg it will be easy.

 

[mas942]

Re: 1985 175 merc Cracked crankcase cover ??

Re: 1985 175 merc Cracked crankcase cover ??

Made a novice mistake,cracked the lower corner of the crankcase cover while taking of the reed valve assembly off.The crack is about 1 inch long,nothing chipped can it be repaired,welded or sealed with epoxy??