where to find piston sleeves individually new

[michfan09]

Does anyone on here know where I could buy piston sleeves for the PRV V6 individually? I have had no luck so far and I have been only been able to find them in sets. the rest of the pistons and piston sleeves are in good shape except for #4 and the piston for #4 is fine. All I need is the sleeve

[Jeffu]

You might be a bit hard pressed to find just the liner?? I believe all the vendors will only sell them in sets.

If I recall correctly, back in the day the pistons were manufactured by a couple of different companies (Demolin & Mahle?) and came in 3 different sizes. Each piston was supposed to be stamped with either an A, B or C and the liners were either marked 1,2 or 3 or the outer lip of the sleeve was notched out with 1,2 or 3 notches. Thus mating A to 1 and B to 2 etc.

When I rebuilt my engine I needed to come up with 3 "stock" pistons due to the PO having the motor re-built by some dumb@ss mechanic who used 3 "forged - high compression pistons" on one bank of the engine and leaving the other bank with 3 stock pistons. Its a longggg story and don't ask. But, and you can search for it on this site and read about my previous dilemma. What I did was locate 3 used stock pistons & liners. I then took the 3 stock pistons and 6 stock liners and had a machine shop micrometer and match up the best 3 pistons with the best 3 liners. You CAN mix n match you just need to be careful and check tolerances! I have 4K on my rebuild and could not be happier with the performance.

If you can check your bad liner and find any identifying marks, let me know. I believe I still have 3 liners laying around out in the shop and they might just work for you??

[michfan09]

ok and what do you mean by identifying marks? There is like two tick marks on top of the sleeve. How much would want for those 3 liners if you still think you have them? Here are some pictures of the damaged sleeves #4 and 6 #4 2.jpg#6.jpg

[wafflemaster]

A proper engine/machine shop will be able to fabricate a new sleeve for you. I'd take in the whole block and let them machine a sleeve down to the specs of the other sleeves. Replacing the sleeve without a perfectly matching piston could be tricky, so if the piston is fine I the sleeve might have to be honed to fit anyway.

[Jeffu]

ok and what do you mean by identifying marks? There is like two tick marks on top of the sleeve. How much would want for those 3 liners if you still think you have them? Here are some pictures of the damaged sleeves #4 and 6 #4 2.jpg#6.jpg

Yes, the two hash marks are the identifying marks I am talking about. See the pic of one of my liners below. Also, click on the PDF file which gives a description/measurements of the liners and pistons.

I will also send you a PM.


20140328_172448.jpg

delorean.pdf