CAM install gone BAD! Need help/opnion on rocker PICS
Ok guys, here is what happened. In short i installed the new Zex 59300 (my first time) and i fucked up because i didnt loosing the lash on the rocker clearance before bolting down the rocker assembly again. Alas i cracked and destroyed my old 1! Now i am trying to source another assembly for my d16y1 (yes its a y1, 93-95 SOHC VTEC in Australia, until now, very comparble to the z6) and i have got a mate who had a complete y8 head - which i took the assembly off. Basically i posted this on another forum and was told it would be an OK swap as the VTEC assemblys are the same, but was then told that it wouldnt work at all, and the rocker arms are totally different. Seeing as though i could get my hands on it and use it if i needed, i grabbed the y8 assembly anyways and test fitted it up. i firstly tested fitting my z6 assembly to the y8 head, and then the y8 assembly to the y1 head.
The rocker arms look like they are fine to me in comparison with the old ones, and like up perfectly with the guides.. the only real difference i could see were a couple of moulding shapes on the allominium and the oil squirters(?) up top. I finger tightend all the bolts and what i ended up with is as follows. My concerns are:
1) the valve lash clearance. i have pictured below 2 lash's are completly backed out and currently have almost 0 room to more before they put pressure on the springs. ATM the head is at TDC. Is this normal? The cam is a Stage 2 Zex (59300). i know u have to rotate the engine to set the lash correctly, but i am not sure if this is ok to torque down if they are already touching! because i fucked up my old assembly like this last time (accept i didnt ajust any lash and just torqued it down - new cam remmber - and the pressure on the rockers crasked the asembly. OPINIONS?? this is my main concern!!
2) the oil squirters. this is the main function difference i can see. the old ones in my y1 head did not have the retaining housing that these do.
Basically i need opinions before i torque these down, please help!

OLD
VS

NEW

Oil squiters. noticly different housing, although actuating the same way

This is the clearance issue i was talking about. is it normal to have pressure on the valve when torqing the assembly down - it will *** about 1mm worth of pressure before its secure.

Gap left before flush. Its finger tight atm.

Im keeping an eye on this gap. if it doesnt close up when torqued, i wont use it
Can anyone see why this wont work? thoughts on the clearance issue? adivce in general? I am awaiting replys before i torque everything down and test out how the engine spins by turning the crank and and adjusting the valves.
Thanks heeps guys!
The rocker arms look like they are fine to me in comparison with the old ones, and like up perfectly with the guides.. the only real difference i could see were a couple of moulding shapes on the allominium and the oil squirters(?) up top. I finger tightend all the bolts and what i ended up with is as follows. My concerns are:
1) the valve lash clearance. i have pictured below 2 lash's are completly backed out and currently have almost 0 room to more before they put pressure on the springs. ATM the head is at TDC. Is this normal? The cam is a Stage 2 Zex (59300). i know u have to rotate the engine to set the lash correctly, but i am not sure if this is ok to torque down if they are already touching! because i fucked up my old assembly like this last time (accept i didnt ajust any lash and just torqued it down - new cam remmber - and the pressure on the rockers crasked the asembly. OPINIONS?? this is my main concern!!
2) the oil squirters. this is the main function difference i can see. the old ones in my y1 head did not have the retaining housing that these do.
Basically i need opinions before i torque these down, please help!

OLD
VS

NEW

Oil squiters. noticly different housing, although actuating the same way

This is the clearance issue i was talking about. is it normal to have pressure on the valve when torqing the assembly down - it will *** about 1mm worth of pressure before its secure.

Gap left before flush. Its finger tight atm.

Im keeping an eye on this gap. if it doesnt close up when torqued, i wont use it
Can anyone see why this wont work? thoughts on the clearance issue? adivce in general? I am awaiting replys before i torque everything down and test out how the engine spins by turning the crank and and adjusting the valves.
Thanks heeps guys!
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Weq
All Motor / Naturally Aspirated
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Oct 20, 2004 12:17 AM




