Thanks! I'll be filing this. Uh, antifriction lube? Would you use this on a the Coated Skirt piston? So, Basically your saying you don't get assembly lube anywhere near the rings and use 3 in 1 oil in the ring grooves and let the rings pretty much dry? Call me old and unschooled on this, but I always used plain old engine oil and pretty much lubed the crap out of the bores and pistons with it. I take it I was doing it wrong? I was trained in autobody work at Vale tech, a pre Wyotech school. I must admit I never received formal training on engine rebuilds. Just what I was told and read, some of it probably apparantly incorrect. Funny how back in the day you cold work your way up in a dealership, get an ASE master tech certification, yet never take and actual engine rebuild class! I never had a rebuild fail on me over the years though! No smokers or other failures. So I must not have screwed up too bad... -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II " I realize that death is inevitable. I just don't want to be around when it happens! " -------------- Original message ---------------------- From: "Bruce Hevner" <scramblr@xxxxxxxxxxx> > >Don't know if they are still available out there, but Muskegon always gave > me the best bang for my >buck. I'd slap those suckers into some pretty badly > worn motors and they would still seat in less than >1,000 miles and get over > a year's running without power loss, even when ran hard. > > I was a warehouse dist for Muskegon when I had my shop. They were some of > the best on the market back then, VERY high quality (made in the US). I sold > LOTS of them. Then in 88 (I think) Dana Corp bought them and stopped > marketing them at retail although they were still available to engine > rebuilders. They were gradually brought into the Perfect Circle brand. > Then in 98 ( a year after I closed my shop) they started to drop the > Muskegon part numbers and go to Perfect Circle part numbers and Muskegon was > on its way out. In 05 Dana closed the Muskegon foundry and I think Muskegon > is totally gone now. I think all of it is now under the Federal-Mogul. > Most in my area are now selling Hastings rings. I'm not fond of them at all. > Especially their oil ring. I like PC much better. Especially their "Speed > Pro" line. Not as good as TotalSeal but not as expensive either. > > >Unless it's a race car or something that will be pushed a lot I'd use > standard cast rings. Chrome-molys >last longer but are hard to seat in a > relatively slow turning engine like the AMC six. I used them twice, >and had > problems getting the rings to seat. On the first one I literally had to > overheat the engine (like >boiling over overheating!) before the rings would > seat (it was a 196 L-head). The second time took a >lot of hard running and > over 2000 miles before they were fully seated. For a mostly street car it's > just >not worth it! Standard rings should seat in the first 500 miles and > last over 100K if the engine isn't run >extremely hot or overheated too many > times and otherwise taken care of. I've had a couple engines >with stock > type cast rings go nearly 200K before they started using much oil and > noticeably lose power >(compression). > > I think you are confusing CHROME rings with MOLY (plain Moly or PLASMA > MOLY). Chrome-MOLY is a type of steel. It's a common mistake. > Hard Chrome has been used as an anti-wear coating on rings for a LONG time > both retail and OE level. Hard Chrome CAN be difficult to seat if the bore > is not finished properly or if ANY anti-friction lube is used on the rings > for installation. > How did you know your rings were not seated? If it was a compression > problem then it would have been the top ring. If it was an oil consumption > problem it would have been the second ring since the top ring does not > perform oil control. This is known as having a "wet cylinder" and is most > commonly caused by using an anti-friction lube on the rings for assembly > preventing the second ring from seating. The second ring does double duty > both backup compression to the top ring and oil control. > > Plain cast rings are most used for "economy" rebuilds are generally easy to > seat but not as long lasting as "coated rings" > Hard Chrome rings (while harder to seat) are MUCH longer lasting and easier > on the cylinder walls. Many Japanese engines (especially Toyota) used to put > Hard Chrome on BOTH the top compression ring AND the second compression-oil > control ring! > Plain MOLY coated rings (cast or Ductile) are easier to seat than Hard > Chrome but tend not to last quite as long and not be quite as easy on the > cyl walls. > PLASMA-MOLY is the latest in common ring coatings. It is sprayed on the face > of the ring with a plasma torch (hence it's name). It has a much higher > melting temp than Hard Chrome while seating about like reg Moly. This is > what you will commonly find on high end competition rings but is also used > at the OE level. > > When installing pistons I don't use ANY type of anti-friction lube like STP > or engine assembly lube on the rings. This can cause a "wet cylinder". I use > ONLY a few drops of 3-1 oil in the ring grooves and a few drops rubbed into > the cylinder walls with my hand and then the excess removed with a cloth. I > put a FEW drops of anti-friction lube on the SKIRTS ONLY of a WARM piston. > After letting it soak in I REMOVE the excess with a rag. Do NOT allow ANY of > the anti-friction lube to contact the rings OR cylinders. This is the > procedure recommended to me by an engineer from one of the ring companies > about 20 years ago. I have NEVER had a ring seating problem since I have > been doing it this way. > > But HEY,,, that's just ME!! > Bruce Hevner > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://splatter.wps.com/pipermail/amc-list/attachments/20081018/4b1d330d/attachm > ent.htm > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list