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Discussion Starter #1 (Edited)
Ok so this should remove some of the miss information about timing belts tensioners and water pumps. and the how too choose the right belt, tensioner, water pump, timing belt combo

head heights
b7/a6 95mm
D14a2 95mm
D16y3 95mm
d16z6 93mm
D16y7 93mm
D16y8 93mm
D16y5 93mm
D15Z1 93mm

for every 1 mm of head height difference you will need a 2mm more belt because it has to go up and also down
the head height information is from the factory service manuals

B2/B7/A6 tensioner OD is approx 56mm
Z1/Z6/Y7/Y8 tensioner OD is approx 52.5mm

edit: SWAPPING TENSIONERS DOES NOT WORK! the slot and the holes do not align correctly so this is not a possibility


VX ie z1 is 103 teeth
d15b2/b7 tb is 106 teeth.
A6/sohc zc TB 107 teeth
Z6/y7/Y8 TB 104 teeth

d16y7 is indeed the same size as the y8 and z6

Z1/b7/z6 have same water pump gear size



d16a6/d15b7/SOHC ZC same head height


d15b7/b2 with 93mm head

any 93mm head on a d15b7/b2 block, use a 104 tooth belt from the y8/y7 or z6

because the head you are swapping on is shorter than the normal head you need a smaller belt to get the right tension.

other notes

all cam gears are the same size! changing them will only change the centerline of your cam

if you do want to set the right centerline of the cam degree your cam, as seen here
http://www.d-series.org/forums/diy-forum/108399-diy-degree-your-cam.html

the d16z6, d16a6, d15b7, d15b2 all use a cam gear that is indexed the same

the d16y7, d16y8 both use a cam gear that is 4.5 * or half a tooth off that of the d16z6, d16a6, d15b7, d16b2
 

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Discussion Starter #2
these are all the part numbers that i compared

D16a6 d16 deck height 212mm
B2/B7/A6 tensioner OD is approx 56mm
2 19200-P01-004
WATER PUMP (YAMADA)

12 14400-PM6-004
BELT, TIMING (107RU24 A-555) (UNITTA)

13 14510-PM7-004
TENSIONER, TIMING BELT (NIPPON SEIKO)


D15b7 same head as d16a6 d15 deck height 207mm
B2/B7/A6 tensioner OD is approx 56mm
12 14400-PM3-004
BELT, TIMING (106RU24 A-555) (UNITTA)

13 14510-PM7-004
TENSIONER, TIMING BELT (NIPPON SEIKO)

1 19200-P10-A02
WATER PUMP (YAMADA)


D16z6 212mm
Z1/Z6/Y7/Y8 tensioner OD is approx 52.5mm
12 14400-P28-004
BELT, TIMING (104RU24 A-555) (UNITTA)


1 19200-P08-004
WATER PUMP (YAMADA)



D16y8
Z1/Z6/Y7/Y8 tensioner OD is approx 52.5mm
13 14400-P2E-004
BELT, TIMING (104RU24 B-333)

22 14520-P2A-305
TENSIONER SET, TIMING BELT (KOYO SEIKO

1 19200-P2A-A01
WATER PUMP (YAMADA)


D16y7
Z1/Z6/Y7/Y8 tensioner OD is approx 52.5mm
1 19200-P2A-A01
WATER PUMP (YAMADA)

22 14520-P2A-305
TENSIONER SET, TIMING BELT (KOYO SEIKO)

13 14400-P2F-A01
BELT, TIMING (104RU24 GB-333)


D15z1
Z1/Z6/Y7/Y8 tensioner OD is approx 52.5mm
1 19200-P08-004
WATER PUMP (YAMADA)

12 14400-P08-004
BELT, TIMING (103RU24 A-555) (UNITTA)

Same tensioner as z6


if anyone spots anything that is off or can double check to make sure all of this is 100% correct it would be great. along with getting me actually numbers for the head height.
measured from the mounting surface to the center of the cam.

i will be able to post up the head height for d16y8 head and d16a6/d15b7 heads


i used all threads that actually had running working motors that used these set up's with no problems
 

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Discussion Starter #4
okay so i just looked up the most common heads in the factory service manuals and got all of the head heights.

this is interesting because it says that the y8 and z6 heads are both the same height there fore if all other things are kept the same swapping a y8 head on a d15 block will need the same timing belt and tesioner as a z6 mini me.

but most of the info i have found show that for y8 mini me go with the y8 belt
and for the d16z6 mini me the z1 belt and tensioner

any way hope this comes in handy to anyone doing a mini me
 

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Good info definatly got me thinking about a couple head swaps.. :)
 

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good info.

how did you confirm that the b7/a6 tensioner can be "swapped" with the z6 one? In my recent experience the z6 tensioner did not fit the zc/a6 block.
 
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Discussion Starter #8
good info.

how did you confirm that the b7/a6 tensioner can be "swapped" with the z6 one? In my recent experience the z6 tensioner did not fit the zc/a6 block.
would you mind posting up photo's of this?

the z1 ie vx came with a the same part number timing belt tensioner as the z6.
also the part numbers for all the bolts that hold all the tensioner are all the same.

and there are many places that say the right tensioner to use is the vx one.

but if there is a different bolt pattern or spacing please let me know so i can change this.
 

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good info.

how did you confirm that the b7/a6 tensioner can be "swapped" with the z6 one? In my recent experience the z6 tensioner did not fit the zc/a6 block.
Exactly what I was going to say. I cannot post a picture of why it won't fit because I didn't take one when I was working on my setup but I can tell you from EXPERIENCE that I wasn't able to install it. It's been a while since then but if I remember correctly the slot didn't align.

EDIT: Found these pics online (amazing what searching can do!)

From the thread I had found, it states the Z6 and Z1 share the same tensioner and the D15B VTEC is nearly the same EXCEPT the roller is smaller in diameter. Bottom tensioner is the B2/7/A6.



Comparison between the Z1/6 tensioner and JDM D15B VTEC tensioner.



Also, the thread stated the same thing, B2/7/A6 tensioner is not interchangable with the Z1/Z6 tensioner.
 

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Discussion Starter #10
Exactly what I was going to say. I cannot post a picture of why it won't fit because I didn't take one when I was working on my setup but I can tell you from EXPERIENCE that I wasn't able to install it. It's been a while since then but if I remember correctly the slot didn't align.

EDIT: Found these pics online (amazing what searching can do!)

From the thread I had found, it states the Z6 and Z1 share the same tensioner and the D15B VTEC is nearly the same EXCEPT the roller is smaller in diameter. Bottom tensioner is the B2/7/A6.



Comparison between the Z1/6 tensioner and JDM D15B VTEC tensioner.



Also, the thread stated the same thing, B2/7/A6 tensioner is not interchangable with the Z1/Z6 tensioner.

thank you that is awesome!

i was having trouble fining any good pictures like that and first hand experience.

i will update the thread

+ rep for a helping this out

sorry to anyone if that was confusing
 

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havnt read through previous posts but the JDM D15b VTEC (single stage obd1) is the same belt as a D15z1 - slightly different tension-er but only asthetically
 

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good info.

how did you confirm that the b7/a6 tensioner can be "swapped" with the z6 one? In my recent experience the z6 tensioner did not fit the zc/a6 block.
True that brother!!
136772


D15b or d16a6 vs z6.
The tensioner is dictated by the block.
 
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