compression numbers?

D15, D16, D17 and Mini-Me swaps
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compression numbers?

By eg84dr
- Mon Mar 29, 2010 8:39 pm #184427 did a compression check on my jdm d15b and got cyl#1 120 cyl#2 130 cyl#3 130 cyl#4 120
are these bad?
i know my rings are going cause it smokes blue at high rpms or when i hammer on it
but how much longer will they last?
and can i use z6 rings if i re ring it?
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By d-mon
- Tue Mar 30, 2010 4:11 am #184507
eg84dr wrote:d-mon said d16z6 rings work so in a few months ill re ring it
can bad rings hurt more than just the rings itself?

d-mon has used z6 rings SUCESSFULLY in his d15b vtec rebuild.
eventually one could break and severly score the cylinder wall, but that is probably the worst case.
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By eg84dr
- Tue Mar 30, 2010 2:17 pm #184576
AutoXCivic wrote:Here's the Honda part number for d15b rings:

Ring set : 13011-P08-004

You can find the rest of the PNs here. http://www.d-series.org/forums/naturally-aspirated/17840-jdm-d15b-vtec-honda-part-numbers-official.html

thanks
i know about that page i did a write up with all that info on this forum
the problem with those part numbers is that they are not availible in the u.s. i found place overseas that sells them but they are like 80 bucks
researched it a bit more last night and it seems that any obd2 d series rings will work

D-mon how did you get the rings to fit arent the ones for the z6 thicker than the d15b rings?
im confused on using the z6 rings cause i read on d-series that you cant use them
only way i thought it was possible was to turn the piston on a lathe and got the slots bigger for the bigger rings
Last edited by eg84dr on Tue Mar 30, 2010 2:25 pm, edited 1 time in total.

By hatchz6
- Tue Mar 30, 2010 2:20 pm #184578 my z6 has 300 000 kms on it and my compression is between 165 and 170 so i would think 120 is not good at all
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By d-mon
- Tue Mar 30, 2010 3:08 pm #184590 pretty sure they were z6 rings.
i will pull a piston out and measure it.
i have both.
i stopped going on d-series.org a couple of years ago.
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By d-mon
- Wed Mar 31, 2010 3:55 am #184749 these are the measurements i got, they are different.
very close, but still different.

ring d16z6 d15bvtec
1st 1.2mm 1.0mm
2ns 1.5mm 1.18mm
oil 2.79mm 2.78mm

when i got the rings, i was told they were d16z6 rings.
since i had no problems, i did not suspect any different.

so i did some research on the two pistons most like the p08, the pms and d17a2/a6.
they all use the same size compression rings as the p08, while the p08 uses similar oil rings as d16z6

01-03 ex (D17A2)
370686 002 004 RING SET, PISTON (STD) 1.0x1.2x2.00mm

01-03 gx
370686 002 004 RING SET, PISTON (STD) 1.0x1.2x2.00mm
only curious thing is why the others have such narrow oil ring combinations or are the mesurements off.

i guess i'll order a set and see if they fit.
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By d-mon
- Wed Mar 31, 2010 5:27 am #184775 rings for these piston will work
92-95 HONDA CIVIC VX VTEC 1.5L D15Z1 SOHC 16V
96-00 HONDA CIVIC HX VTEC 1.6L D16Y5 D16Y8 SOHC 16V
96-97 HONDA DELSOL SL 1.6L D16Y5 D16Y8 SOHC 16V
96-00 HONDA CIVIC LX, DX, CX 1.6L D16Y7 SOHC 16V
96-00 HONDA CIVIC DELSOL 1.6L D16Y7 SOHC 16V

sorry for the confusion
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By eg84dr
- Wed Mar 31, 2010 5:33 am #184777 no worries dude
im a member of d series so i just resaerched it there
on another note i checked the compression in the honda manual i have
184 is the correct psi
ans minumum is 135
soooo haha my rings are shot
for now i will just have to fill it with oil everytime i fill it with gas haha
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