June 6, 2015 at 12:42 am #1691
well patience does bring joy !
it loosened up after 4-5 weeks of soaking the rings, gentle wacks on the pistons , openning it’s fuel ports and blasting in some engine fogging oïl
I can now turn the flywheel with one hand, no screeching pistons are sliding in and out like a swiss Watch !! 😀
I will close it up and regasket the head.
any sealant needed here as I am using a Sierra headgasket ? I had asked for OEM gasket but clerk ordered me a Sierra 🙁
I will change the impeller and try it out before messing with the funny carb. 😕
US Member - 2 Years
Topics: 128June 6, 2015 at 12:56 am #17672
Just because it’s spinning doesn’t mean she’s ready to start!
My 12D10 was frozen, I got her moving and moving quietly. On the recommendations of some of the members here I pulled her apart and checked the rings. 4 of the 6 rings total were stuck in some form or another.June 6, 2015 at 1:51 am #17674
I am not to experienced on that level of surgery so I can only run some engine cleaners or seafoam like mixes for now and hope for the best .
I’ll check points / iginition etc… the usual easy things
US Member - 2 Years
Topics: 128June 6, 2015 at 2:07 am #17675
If you can remove any of the ports so that you can see into the cylinder, you can check the rings with a little screwdriver. You can push them, if they move they’re free and you’re (probably) good.
It’s not that hard to take them apart and get them back together after. You just need to keep track of the parts. There’s enough information here to help you out if you get stuckJune 6, 2015 at 12:44 pm #17692
I will consider it but this engine is "like new" and I just don’t want start inspecting exhaust ports behind the exhaust baffle or pulling the carb and reeds
I’ll chance it for now with a good dose of engine tuners
thanks for comments …btw should I dab the headgasket with sealant ?
US Member - 1 Year
Topics: 161June 6, 2015 at 1:48 pm #17695
I don’t pull them apart until I have exhausted all
other options. The rings are seated in the cylinder
and if they are not pined they cant be put back in
their original position which results in some
compression loss. If the motor is in good condition,
and the outward cosmetic appearance indicates it may
be, if the rings are only stuck you’ll have the best result
if you can get them freed up without disturbing them.
In a tank or on a boat, using Sea Foam and 5 oz. of oil
per gal. you need to see if you can get it started. If it
starts you will want to let it run about 5 min.
Then shut it off and let it cool. Then repeat. As the rings
and pistons heat up they expand. When they cool they
contract. This movement along with the detergent in
today’s oil and the Sea Foam will free them up over time.
When the compression comes up enough it will push
the boat just use it. As the motor cleans out you should
notice improvement in how it starts and runs. If it wont
start let it sit for a few more days and try again. If you
cant get it started at some point it will have to come
apart.June 6, 2015 at 3:51 pm #17701
..that is what I needed to hear 🙂
when I fire it up I’ll feedback.
Darn it …. that was my winter 2016 project …. now I ‘ll need to find another engine to fic next winter
US Member - 2 Years
Topics: 116June 6, 2015 at 5:34 pm #17703
Did you ever post a picture of this pristine motor? I looked back over your posts and don’t see one.
Topics: 105June 7, 2015 at 1:35 am #17723quote Mr. Asa:
The 9.5HP motors like this don’t have the traditional port/exhaust covers, so not easy to look inside.
I woud do a quick compression check, and give it a go! Run it a bit and check compression again.
Topics: 10June 7, 2015 at 3:39 am #17726
No, there is no sealer used on the head gasket.June 9, 2015 at 3:45 pm #17855
I am in an out of cottage country… now brother in law passedaway ….I need assist my sister for a while so I’ll get back on line later
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