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Show Parts for Model:

update hyd. piston/hydlift cyl

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Author  [Modern View]

01-17-2013 16:44:41

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Fluid leaking from top cover.The piston and rings are scratched.the hyd lift cyl dosent look or feel as bad as piston an rings.Can i hone the cyl out?ordered new type piston and orings and gasket kit today from this site.thanks,

1950 8n redbelly

1987 ford 555a

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01-18-2013 02:56:56

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 Re: update hyd. piston/hydlift cyl in reply to kenben, 01-17-2013 16:44:41  
Quoting Removed, click Modern View to see

Pop for a new cylinder and forget about it for another 50 years.


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01-17-2013 16:48:39

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 Re: update hyd. piston/hydlift cyl in reply to kenben, 01-17-2013 16:44:41  

pic of cyl

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russb wa

01-17-2013 20:42:48

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 Re: update hyd. piston/hydlift cyl in reply to kenben, 01-17-2013 16:48:39  
Everything Sounder said. The thing about the gaskets between the cylinder and the cover is the oil port is much happier when the mating surfaces are square. That is why you should use gaskets at the "other" end of the cylinder.

Honing, I would recommend just enough to put cross hatch marks all around, enough to assure there are no highs, maybe 15-25 seconds @ less than 500 rpm.

I would not recommend taking out all scratches. They won't harm the Oring unless very deep and wide, then you probably need a new cylinder. Any leakage from a few scratchs should not affect use. Dimensions of the cylinder are more important. That is just my opinion, fwiw.

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01-17-2013 17:08:11

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 Re: update hyd. piston/hydlift cyl in reply to kenben, 01-17-2013 16:48:39  
piston COULD be reused with new rings.. and a hone job on the cyl. me? i'd get the naa cyl.. oring and washer.. and hone the cyl good. the oring is fat and holds up good even if the cyl hole opens up a lil on honing to smooth it.

your call. rings are cheaper.. will likely seal a lil less on a worn cyl.

remember under the cyl is a long and 2 small gaskets.. then the top cover gasket.

use no goop.. go on dry and clean

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