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Old 11-20-2016, 04:31 PM   #1
stegomo
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Default Oil ring install

Starting to reassemble the engine and upper oil ring has 4 pieces but when I put them on the rings don't want to compress due to the inner piece holding them out
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Old 11-20-2016, 05:34 PM   #2
51 MERC-CT
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Default Re: Oil ring install

Maybe there is such a thing but the only ones that I have used have 3 pieces. One spreader and two scrapers. Picture might help.
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Old 11-20-2016, 05:42 PM   #3
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Default Re: Oil ring install

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Originally Posted by stegomo View Post
Starting to reassemble the engine and upper oil ring has 4 pieces but when I put them on the rings don't want to compress due to the inner piece holding them out

What ring set do you have??

R
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Old 11-20-2016, 09:34 PM   #4
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Default Re: Oil ring install

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What ring set do you have??

R
Maybe what 'brand' ring set do you have?, would make more sense.
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Old 11-20-2016, 09:36 PM   #5
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Maybe what 'brand' ring set do you have?, would make more sense.
Ok lets fly with that.

R
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Old 11-20-2016, 11:36 PM   #6
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Default Re: Oil ring install

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Seems the use of a ring compressor/installation tool would take take care of the problem with the inner expander piece (?) The end gap of each ring/ring component should be checked in-place and adjusted (filed) if and as necessary.

( Not too relevant: Ford made 3 and 4 ring pistons. Not Ford pistons ? Ford Manual indicates in both 3 and 4 ring pistons, one could have a 2 piece or 4 piece oil control ring assembly. In the 4 ring piston, the upper 2 rings were compression rings, the 3rd ring set contained an oil control ring, expander ring and two steel sections; the 4th ring was a single-piece oil control ring. Some replacement sets contain a bottom compression ring and some choose to omit that to reduce overall piston friction. )
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Old 11-21-2016, 09:41 AM   #7
stegomo
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Default Re: Oil ring install

They are Mchenry rings for a 4 ring pistons
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Old 11-21-2016, 10:00 AM   #8
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Default Re: Oil ring install

Does that mean they are nos old rings?

R
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Old 11-21-2016, 11:19 AM   #9
Bob C
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Default Re: Oil ring install

These are McHenry rings.

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Old 11-21-2016, 12:23 PM   #10
Drbrown
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Default Re: Oil ring install

Bob C .... if that's the complete ring set in your photo, looks like for a 6 cyl with 3-ring pistons (?)
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Old 11-21-2016, 12:24 PM   #11
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Default Re: Oil ring install

One thing I learned the hard way about the 3 part expander type oil control rings is that they resist compressing them a lot. You really have to have a good ring compressor set up to get them in. Resist the temptation to "shorten" the expander. Most of them are designed to work as is as long as it is the correct diameter for the bore. I've no experience with McHenry rings but generally it's best to talk to the ring manufacturer about installation unless they are no longer in business.
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Old 11-21-2016, 12:38 PM   #12
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Default Re: Oil ring install

I have used that type ring.You must be carful installing them in the groove not to overlap either the expander ring or the spacer ring.Most have the ends of the rings painted to help eliminate this problem. If the ring ends overlap you wil not be able to install the piston assy in the cylinder without great difficulty,and if you do the outcome will not be good. Check and check again and again!
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Old 11-21-2016, 12:44 PM   #13
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Default Re: Oil ring install

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Bob C .... if that's the complete ring set in your photo, looks like for a 6 cyl with 3-ring pistons (?)
Yes it's 6cyl. I just posted the picture to show the four parts of the oil ring.

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Old 11-21-2016, 02:18 PM   #14
Ronnie
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Default Re: Oil ring install

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They are Mchenry rings for a 4 ring pistons
You could walk into any good machine shop and buy rings for that engine as they are still in most catalogues. Sealed power,Grant ,Hastings,Egge.All will be current inventory.Easy to get. Napa, Autovalue,Parts plus Lordco and more.

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Old 11-21-2016, 05:18 PM   #15
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Default Re: Oil ring install

Ive had experience with similar 4 pc oilrings and they are a huge PITA...spend 40 bux and buy set of modern rings
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Old 11-21-2016, 06:14 PM   #16
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^^^ Yup x2

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Old 11-21-2016, 08:45 PM   #17
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Default Re: Oil ring install

Managed to get them on and pistons in. ( I asked Lordco for a price on Hastings rings for my engine $519.00 )
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Old 11-21-2016, 08:57 PM   #18
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Default Re: Oil ring install

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Managed to get them on and pistons in. ( I asked Lordco for a price on Hastings rings for my engine $519.00 )
NEVER heard of a price like that! Something is screwed up.
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Old 11-21-2016, 10:42 PM   #19
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Default Re: Oil ring install

Something wrong there the set number is 533 call again.

http://www.perfectengine.com/Hasting..._p/has-533.htm

http://www.ebay.ca/itm/Ford-Mercury-...-/151611032994

https://www.amazon.com/Hastings-533-.../dp/B001FTJVO6

I think the counter man priced a kit.

R
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