Author Topic: ms170 ws manual  (Read 450 times)

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Offline leec

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Re: ms170 ws manual
« Reply #10 on: December 10, 2013, 03:51:20 pm »
This ms170 has a piston that needs replacing and I have a Golf piston for it.  Boy those wrist pin clips are buggers to get fitted in the their groves.  Need a little acid to remove some ali transfer from on the cylinder.  I'll let you know how it all goes.

Lee
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Offline Cut4fun .

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Re: ms170 ws manual
« Reply #11 on: December 10, 2013, 04:27:42 pm »
I dont use acid, only elbow grease.  Mastermind dont either and has a nice set up for himself to make it easier on his elbow.
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Offline leec

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Re: ms170 ws manual
« Reply #12 on: December 10, 2013, 05:08:40 pm »
I dont use acid, only elbow grease.  Mastermind dont either and has a nice set up for himself to make it easier on his elbow.
I've used some scotch brite and that has helped but there is still some transfer left.  Do you recommend just keeping at it or using fine emery cloth maybe

Thanks

Lee

Offline jmester

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Re: ms170 ws manual
« Reply #13 on: December 10, 2013, 08:28:16 pm »
You just have to be careful you don't rub threw the cylinder coating or put any deep grooves in it, I start with Emory to get the bulk of it and then finish with a scotch brite . Cut how does it go if you can't catch a finger nail on it, you should be good to go.
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Offline 660magnum

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Re: ms170 ws manual
« Reply #14 on: December 10, 2013, 08:39:49 pm »
The new piston has to go up and down the cylinder?
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Offline jmester

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Re: ms170 ws manual
« Reply #15 on: December 10, 2013, 09:39:13 pm »
What do you mean?
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Offline 660magnum

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Re: ms170 ws manual
« Reply #16 on: December 10, 2013, 09:44:16 pm »
You need to get all the galled aluminum from the cylinder wall so the piston and ring will fit the cylinder without galling again.
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Offline jmester

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Re: ms170 ws manual
« Reply #17 on: December 10, 2013, 09:53:02 pm »
You are correct, I was miss leading in my last post. It would apply for any scrapes or gouging of the cylinder walls
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Offline jmester

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Re: ms170 ws manual
« Reply #18 on: December 10, 2013, 09:55:20 pm »
Sorry about that, got excited
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Offline leec

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Re: ms170 ws manual
« Reply #19 on: December 12, 2013, 02:31:03 pm »
So I got some acid and away I went.  The scoring was either worse than I thought or the acid burned through the Nikasil coating.  I now have a couple of small but seeable chips or breakes in the cylinder coating.  So, should I put it back together with a new piston/rings and run it like I stole it or get a new jug and do it properly?

Lee

 

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