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Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by Txdragon
According to the CP spec sheet, my rings should be gapped as follows: (.0050 x 3" bore top, .0055 x 3" bore 2nd)
Top: .015"
2nd: .018"
Oil: .015 - .050"
This sound right? I know they are only guidelines, but getting a feeler for some input on a 350-425 hp range. I didn't look this far into gaps the first time around other than an on the surface glance; I just made sure they landed between .015 and .018. In fact, I didn't need to file the first set at all.
Also, is it "bad" if say, one or more rings ends up with a little more gap? Say I get .015 on 3 top rings but take a bit much off of another and end up at .018? As long as it is within the recommendation (.0050 - .0055 x bore) ?
After doing some reading, I went 0.018" for the top rings and 0.020" for the 2nd rings. I haven't cranked mine yet, though, so take my opinion for what it's worth. From my research, more power generates more heat, the rings expand even further, and you need bigger gaps to prevent the ends from touching in these situations. Of course, too large of a gap and you will get blow by. You could always try calling CP.
Originally Posted by NVturbo
No sharp edges whatsoever. On the bottom, it's tapered so the piston rings compress real easy into the piston gaps. Insert the rod/piston into the sleeve and wiggle it a bit..... push down the top of the piston with your 2 thumbs. BAM...installed.
Yep. Only other thing I'd add is make sure the gapped portion of the ring is in the groove when sliding it down into the compressor sleeve - if you feel any more resistance than you would with the piston in the cylinder, stop and make sure all the rings are in their grooves.
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by DaX
Yep. Only other thing I'd add is make sure the gapped portion of the ring is in the groove when sliding it down into the compressor sleeve - if you feel any more resistance than you would with the piston in the cylinder, stop and make sure all the rings are in their grooves.
correct. But for the most part, it's about the best tool for piston install. I was skeptical at first until I saw someone use it on their YT video. **** look so easy, you can do it blindfold. Just as long as the correct rings are installed and the piston grooves aren't dirty, you should never have an issue with those compression guides.
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by DaX
After doing some reading, I went 0.018" for the top rings and 0.020" for the 2nd rings. I haven't cranked mine yet, though, so take my opinion for what it's worth. From my research, more power generates more heat, the rings expand even further, and you need bigger gaps to prevent the ends from touching in these situations. Of course, too large of a gap and you will get blow by. You could always try calling CP.
Yep. Only other thing I'd add is make sure the gapped portion of the ring is in the groove when sliding it down into the compressor sleeve - if you feel any more resistance than you would with the piston in the cylinder, stop and make sure all the rings are in their grooves.
Originally Posted by NVturbo
correct. But for the most part, it's about the best tool for piston install. I was skeptical at first until I saw someone use it on their YT video. **** look so easy, you can do it blindfold.
I may have to stick with the stupid shelf compressor that tries to slice your wrists. Told the wife I needed some extra **** and she has been patient but with that new info, I saw the recommendation for sleeping on the couch in my near future. So I gotta keep the last nickle and dime costs to an absolute minimum if I don't have the tools or can't do it by hand..
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by Txdragon
Speaking with CP, they recommended for me:
top gap: .018
2nd gap: .023
Oil gap: .015
Now to get filing.. Any reason I couldn't use a dremel?
However you do it, make sure you don't remove too much material (stop and check often), and keep the faces you are filing square. I tried the "file in a vise" method and it was taking forever (the 2nd rings are pretty hard), so I broke down and bought a hand crank ring filer. That was the ticket.
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by DaX
However you do it, make sure you don't remove too much material (stop and check often), and keep the faces you are filing square. I tried the "file in a vise" method and it was taking forever (the 2nd rings are pretty hard), so I broke down and bought a hand crank ring filer. That was the ticket.
Yeah, slow and steady shall win the race. Lol! I've devised a work station for it to keep the dremel steady. I figure I'll throw on a med grit stone and run it on about half speed. 1 second grind passes and check after each pass. The second ring has a little more wiggle room, but I think those are the ductile iron so, like you discovered, it's tougher. Lol. This should be interesting either way!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by 2x0
Action Clutch FTW
Been running their 2MS for about a year. The thing is beefy
I couldn't find a stage 3 2ms. The only 2ms I came across was a stage 5 unsprung. I didn't feel like shattering my transmission with that so.. lol! Now, I compared the diaphragm of this pressure plate to the one on the XTD and the Action clutch is considerably thicker. I can kinda flex the diaphragm a little by hand on the XTD and that **** just ain't happening on the action. Lol. Those fingers are like 3mil thick.
On another front, main and rod bearings will be in today. I picked up my plastiguage and will be checking my main clearance by this evening. Hopefully I'm around the 018 mark, we'll see.
Want to also thank DAX and TurboLScrx for helping me look into a piston concern. Thought my P2W was a bit excessive and with a video, they provided some insight to the matter that helped bring on the calm. Thanks again, fellas!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Correct, by definition a 2MS is a stage 5 sprung. It has the heavier duty pressure plate. Only downside, mine being a cable clutch it is pretty hard on the foot and leg. Yours should be much more forgiving.
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Raining today so I put the block together in the kitchen. Lol!
Pistons mounted to the rods perfectly. The reconditioning went perfect!
Main clearance at .0020 rod clearance. 0018. Ring gapping went great with the dremel. Top ring at .0018, 2nd .0023, oil .015.. No excessive piston slapping at all. I was worried for nothing! Made sure my tangs were on the exhaust side as well this time around. Don't remember if I did or not before. **Shrug**
Crankshaft rotates nice and smooth by hand. It gave me a bit of resistance last time. I'm happy so far!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by turboLScrx
You put plenty of assembly lube on everything...right? Pistons look really nice at home
I got assembly lube on each rod and main, the wrist pins, the bolts, my hands, the box, the cat, and 2 of the dogs... Everything is lubed appropriately!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by Txdragon
I got assembly lube on each rod and main, the wrist pins, the bolts, my hands, the box, the cat, and 2 of the dogs... Everything is lubed appropriately!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Here was the setup for filing the rings to spec. The base for the dremel made a good sturdy hold. Set it on 4 and just went to town. Filed the top and second rings in 30 minutes time; including setup!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Well.. Pulled the oil pump apart to clean and check out and it seems my pressure valve is stuck closed. Pulled the plug and spring and the little piston will not come out. Sigh.. guess it could be worse and stuck open! I'll be looking for another oil pump now.
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
Originally Posted by DaX
The project knows you're getting close to finishing, so it pulls out it's last defense - nickel and dimeing you!
No doubt.
Originally Posted by Cupajoe
I don’t know if they make this for the d series but acl high pressure oil pumps are great. Had one on my b series and it made great pressure reliably.
Melling makes one I think, in the mid 100 range.
I was able to get the pump off my spare block and it came apart with ease. Got it ported now, gonna breathe a little better as the project moves forward!
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
I used Melling on my wife's Accord and it fit perfect. I also used Melling on my D16 build and the only thing that kind of bugged was the surface that the oil pan gasket sits against on the pump was a little out of plane with the bottom of the block. I haven't run the engine yet so don't know for sure that it won't leak, but I put some sealant on the joint to smooth the transition, so I'm not expecting it to.
01-14-2019, 08:11 AM
Re: Txdragon's D16Z6 project: I've just boarded the Z6 bandwagon..
