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

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.

Re: Oil ring install
 

What ring set do you have??

R

Re: Oil ring install
 

Maybe what 'brand' ring set do you have?, would make more sense.

Re: Oil ring install
 

Ok lets fly with that.

R

Re: Oil ring install
 

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. )

Re: Oil ring install
 

They are Mchenry rings for a 4 ring pistons

Re: Oil ring install
 

Does that mean they are nos old rings?

R

Re: Oil ring install
 

These are McHenry rings.

Bob

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 (?)

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.

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!

Re: Oil ring install
 

Yes it's 6cyl. I just posted the picture to show the four parts of the oil ring.

Bob

Re: Oil ring install
 

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.

R

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

Re: Oil ring install
 

^^^ Yup x2 :)

R

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 )

Re: Oil ring install
 

NEVER heard of a price like that! Something is screwed up.

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