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Ring compressors that work good?
#1692957
10/31/14 10:41 PM
10/31/14 10:41 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Been trying to get my engine together and have been having a helluva time getting the pistons to drop in. Had a Proform adjustable 4-4.09 aluminum tapered ring compressor to start and got #1 in reasonably successfully and went to #2 and ruined an oil ring from the piston getting slightly cocked. These 1.5x1.5x3mm ring packs are a pita im finding out. I have discovered even with an old school band compressor that it is REALLY easy to move the oil rings where the bottom oil ring drops a [Edited by Moparts - Family Friendly Site - Keep it clean] hair and then when you go to compress the compressor it hangs up on the oil ring support rail and then you're fubar'd. Pulling my hair out a little here and have ordered a Total Seal tapered compressor for my 4.065 bore. I pulled #1 back out, thank god, and there was aluminum shavings between ring lands from that pos Proform compressor. I found a set of Mahle single ring sets that have what appear to be identical oil rings to fix #2. This sucks, the TS compressor is about 13 days out yet. Gen III Hemi build fwiw.
Mopar to the bone!!!
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Re: Ring compressors that work good?
[Re: rebel]
#1692959
10/31/14 10:57 PM
10/31/14 10:57 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Well hopefully this next one will be the last one I buy for this build lol! I didn't even know it existed until last night.
Mopar to the bone!!!
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Re: Ring compressors that work good?
[Re: a493demon]
#1692963
10/31/14 11:50 PM
10/31/14 11:50 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I think the main problem with the Procomp was it had to much taper. A buddy has a Snap On ring/pliers style I will try as a last resort.
Mopar to the bone!!!
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Re: Ring compressors that work good?
[Re: 72Swinger]
#1692964
11/01/14 04:10 AM
11/01/14 04:10 AM
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Joined: Nov 2008
Posts: 833
MN
hemidup
super stock
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super stock
Joined: Nov 2008
Posts: 833
MN
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Those Gen 3's can be a real treat when installing pistons. I have all the above mentioned style of ring compressor and still had issues. Bent an oil ring, broke a 2nd ring... heck I even tried using zip ties to compress the rings one time. The biggest problem I see with a fresh factory block is the lack of champher at the bore opening. I now touch up the bore openings a tad and the pistons slip right in with any style of ring compressor tool.
Jerry Williams.
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Re: Ring compressors that work good?
[Re: hemidup]
#1692965
11/01/14 12:19 PM
11/01/14 12:19 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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I've never had a problem with the adjustable ones that have 2 bands, you tighten it down around the piston with a square 'Allen' type wrench. Then once the piston is in, release the band by pressing a lever.
Just be sure to square up the compressor to the bore before pushing the piston in. I like to let the skirts hang below the ring compressor to square the piston to the bore, then press the compressor to square it up, and a rubber mallet handle to tap the piston down.
**Photobucket sucks**
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Re: Ring compressors that work good?
[Re: 72Swinger]
#1692972
11/01/14 03:24 PM
11/01/14 03:24 PM
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Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
CHAPPER
master
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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Quote:
Been trying to get my engine together and have been having a helluva time getting the pistons to drop in. Had a Proform adjustable 4-4.09 aluminum tapered ring compressor to start and got #1 in reasonably successfully and went to #2 and ruined an oil ring from the piston getting slightly cocked. These 1.5x1.5x3mm ring packs are a pita im finding out. I have discovered even with an old school band compressor that it is REALLY easy to move the oil rings where the bottom oil ring drops a [Edited by Moparts - Family Friendly Site - Keep it clean] hair and then when you go to compress the compressor it hangs up on the oil ring support rail and then you're fubar'd. Pulling my hair out a little here and have ordered a Total Seal tapered compressor for my 4.065 bore. I pulled #1 back out, thank god, and there was aluminum shavings between ring lands from that pos Proform compressor. I found a set of Mahle single ring sets that have what appear to be identical oil rings to fix #2. This sucks, the TS compressor is about 13 days out yet. Gen III Hemi build fwiw. [/quote
Sounds familiar,,with the Total Seal oil rings. I had a set from them that the oil ring expanders were too long. I was like you, pulling my hair out, thinking I was stupid, etc. I finally figured out what was going on,,of course they DENIDE any problem. They were metric rings. I ordered Mahle rings and all was fine. 
If you like drag racing, support your local track.
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Re: Ring compressors that work good?
[Re: 72Swinger]
#1692974
11/01/14 03:34 PM
11/01/14 03:34 PM
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Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
CHAPPER
master
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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Quote:
Quote:
I used to use the bottom one in the pic below but was then introduced to the one above it and will never use anything else.
I have that one on top and I cant get it to sqeeze enough. Tried a few different clockings with it and no matter what I do where that compressor overlaps, I have rings not compressed enough.
Reading back through this thread....I saw this when my Diamond pistons didn't have enough depth in the ring grooves. Ain't the Gen 3 stuff fun!!  I was having 2nd thoughts about my ability to build engines for awhile!!! My first Gen 3 Hemi and all these problems...  wrong piston specs first, finally get that corrected, then wrong rings,, 
If you like drag racing, support your local track.
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Re: Ring compressors that work good?
[Re: CHAPPER]
#1692975
11/01/14 05:01 PM
11/01/14 05:01 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
OP
master
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OP
master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Chapper I am beginning to lean this way myself. I went out in the garage and said wth, lets go for round 2. I held the rod in my vise, got the rings all happy and squared up the Lisle oil filter wrench style compressor and clamped her down. #1 went in past the oil rings on the first punch of my fist. But the compressor then twisted and the top oil ring was barely above the bore and I undid the compressor and got the oil ring completely in then re-clamped and sent it home. Did the same on #2 and it went well except right at the last tap to get it home, it made a SNAP sound, and at the same time a little flake of moly coating flew out of the compressor and landed on my hand. NICE! So right now a set of Mahle rings are sounding pretty fricken awesome.
Mopar to the bone!!!
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Re: Ring compressors that work good?
[Re: 72Swinger]
#1692976
11/01/14 05:11 PM
11/01/14 05:11 PM
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Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
CHAPPER
master
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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I may also tell you,,be careful to not try to get the Lisle compressor TOO tight. Overtight causes as much or more trouble as too loose, if you can understand my meaning. Once I got the right oil ring and the right depth on the ring grooves, mine went in easy. FYI,,the next Gen 3 I did, I used Ross pistons with 1/16 1/16 3/16 ring pack and that went WAY smoother. 
If you like drag racing, support your local track.
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