Piston Ring Compressor
Thread Starter
Three Wheelin'
Joined: Jan 2010
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From: Muriland
Piston Ring Compressor
I've been looking for a piston ring compressor (PRC) to put my 87 pistons back in the block. Many of the sources I've read, steer you away from the ribbon style PRC, which leaves things like the Proform adjustable PRCs, or the billet fixed width PRCs. Issue is that none of these seem to fit our pistons. I haven't seen Billet units in 100mm diameters, and the smallest proform model I've seen is 4", while 100mm = 3.93" Maybe you can get it a bit smaller, but I dont really want to wing it on this step.
So, I'm wondering what type of PRC others have used to install pistons + rings in their engines.
Thanks!
So, I'm wondering what type of PRC others have used to install pistons + rings in their engines.
Thanks!
Drifting
Joined: Oct 2009
Posts: 2,638
Likes: 2
From: Alberta, Canada
I have done lots of automotive small and big blocks.
Look in the phone book for mac tool dealers and phone them. it should not be that expensive. Most of your automotive stores will have this style which is what I have and It will do from your motor bike to a diesel truck piston
Look in the phone book for mac tool dealers and phone them. it should not be that expensive. Most of your automotive stores will have this style which is what I have and It will do from your motor bike to a diesel truck piston
Last edited by 928mac; May 9, 2012 at 02:01 PM.
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From: Rep of Texas, N NM, Rockies, SoCal
I have done lots of automotive small and big blocks.
Look in the phone book for mac tool dealers and phone them. it should not be that expensive. Most of your automotive stores will have this style which is what I have and I will do from your motor bike to a diesel truck piston
Look in the phone book for mac tool dealers and phone them. it should not be that expensive. Most of your automotive stores will have this style which is what I have and I will do from your motor bike to a diesel truck piston
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Thread Starter
Three Wheelin'
Joined: Jan 2010
Posts: 1,382
Likes: 0
From: Muriland
I've had the same issue. Sometime back, I thought I came across a 100mm unit, but I've not been able to find it since.
With a range of 3.9" - 4.05", it looks like it might fit the 100mm / 3.93" cylinders. $28.95 + shipping.
Last edited by aaddpp; May 9, 2012 at 04:56 PM.
Three Wheelin'
Joined: Nov 2008
Posts: 1,675
Likes: 4
From: TEXAS
You have to know what your doing with the ribbon style PRC, I used mine many times with no problems. I borrowed it to someone to put their 4.7 short block back together and they broke a ring on the first try (two people trying to put one piston in the bore). If you pay attention to the details you should be fine using the ribbon style ones...
and one more thing, I bought one of summits PRC and did not like the quality, so I returned it, also bought a kit that comes with a special pliers from snapon and the quality was bad, so I returned that one too. Try ARP or Wiseco.
http://www.wiseco.com/PDFs/Wiseco-CompressorSleeves.pdf
http://www.jegs.com/p/ARP/ARP-Ring-C...47505/10002/-1
Ali
and one more thing, I bought one of summits PRC and did not like the quality, so I returned it, also bought a kit that comes with a special pliers from snapon and the quality was bad, so I returned that one too. Try ARP or Wiseco.
http://www.wiseco.com/PDFs/Wiseco-CompressorSleeves.pdf
http://www.jegs.com/p/ARP/ARP-Ring-C...47505/10002/-1
Ali
Thread Starter
Three Wheelin'
Joined: Jan 2010
Posts: 1,382
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From: Muriland
You have to know what your doing with the ribbon style PRC, I used mine many times with no problems. I borrowed it to someone to put their 4.7 short block back together and they broke a ring on the first try (two people trying to put one piston in the bore). If you pay attention to the details you should be fine using the ribbon style ones...
and one more thing, I bought one of summits PRC and did not like the quality, so I returned it, also bought a kit that comes with a special pliers from snapon and the quality was bad, so I returned that one too. Try ARP or Wiseco.
http://www.wiseco.com/PDFs/Wiseco-CompressorSleeves.pdf
http://www.jegs.com/p/ARP/ARP-Ring-C...47505/10002/-1
Ali
and one more thing, I bought one of summits PRC and did not like the quality, so I returned it, also bought a kit that comes with a special pliers from snapon and the quality was bad, so I returned that one too. Try ARP or Wiseco.
http://www.wiseco.com/PDFs/Wiseco-CompressorSleeves.pdf
http://www.jegs.com/p/ARP/ARP-Ring-C...47505/10002/-1
Ali
Three Wheelin'
Joined: Nov 2008
Posts: 1,675
Likes: 4
From: TEXAS
You should not feel the slightest resistance when pressing the pistons in their bores, lightly tap on the top of the pistons and they should slid in, make sure the base of your tool is flush with the top surface of the cylinder wall. Also make sure the rod journal on the crank is on the correct position so that once you push the piston and rod in,,,, the rod bearing joins the crank perfectly instead of the rod bolt hitting the crank and damaging it. make sure you oil the piston rings and the inside if the PRC.
Let us know if you have any problems.
Let us know if you have any problems.
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From: Helsinki, Finland
Factory uses solid fits one size only tools instead of any adjustable version. This is probably due to convenience more than anything else but I think chances of messing things up is smaller also. Wiseco's are $30 each so its cheap insurance. I have used 75-125mm adjustable version on several engine builds without destroying anything yet. Just don't like it at all.
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Joined: Mar 2005
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From: London, UK
I used the adjustable one, it was a bit of a pain, but with patience, I managed to put back the GTS engine together without a hickup. I am more worried about breaking a piston ring while I am putting it back in the groves on my GT and Euro S2 motors...