So Im going to install my Manley pistons .010 oversized, I've gapped the rings correctly, using these specs:

1st compression ring: .013 inches
2nd compression ring: .016 inches
Oil Rails: .048 inches

The pistons fit in the cylinder fine without the rings but when i put the rings in the compressor the rings get hung up on the top of the cylinder wall and don't go in, I can't tighten the compressor anymore and I don't want to break anything. It seems like the compression rings aren't going far enough into the ring grooves to compress or something...I'm not sure what to do.

 

its a pain in the *** if your using the adjustable type..i had the same problem...what i did was compress the rings as evenly as possible, put the compressor over the cylinder evenly, push down hard and fast while holding the compressor evenly, and use the wooden end of a hammer to tap it gently and it should go in

 

here's some pics

 

i used the same type on my build. make sure the tool sits flat and square on top those cylinders.

My problem was that it was always at some type of an angle which would allow one of the rings to expand and stop the piston from sliding in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zerovandez &raquo;</TD></TR><TR><TD CLASS="quote">i used the same type on my build. make sure the tool sits flat and square on top those cylinders.</TD></TR></TABLE>

Take a mallet and tap the compressor until it is flush with the deck, then drive it in. Seen too many broken rings and that is reason #1.

 

I used one of those piston installers and had a hell of a time getting it to work. Actually, I had to get a different one from Napa I believe and it worked a lot better.

 

Just want to say make sure they are lubed really well too. I made the mistake of not doing that before...

 

yeah i put assembly lube all around the piston, the cylinder and the compressor, about to go try it again now..

 

I ended up getting the first oil rail into the cylinder, but the compression rings just will not move one bit.

It almost seems like the rings grooves for the compression rings aren't big enough, because i can't get the compression rings to get any smaller at all...

 

It will work. But look at your pic. There is a gap between you piston rings and you ring compressor on the edge where it starts to rap around again (bad explanation but just look at it). That is where you getting hung up. I dealt with that same thing about a year ago. Don't force it. Get another piston ring compressor. There only 15 bucks.

 

Did you check your PMs?