cpmike

i reassembled my motor (h22a euro-r), and i ran into a snag while doing the valve adjustment.

the exhaust rockers are all fine and adjusted normally (.007")

on the intake side, all of the main rockers are stiff to the point where they are always in contact with the camshaft. cant fit ANY sort of feeler gauge in.

so i adjusted the screw ALL the way out to make plenty of room, yet all it does is make a wider rocker-to-valve gap, and the rocker arm does not move downward at all.

i cant push them down by hand, but if i give them a solid tap, i can get them to bounce off the valve.

im very confused as to why these rockers are so stuck. perhaps the rod that they pivot on is dried out and not lubed? the head was sitting dry for a long time.

what can i try?

Rosko

iTrader: (1)

whats up mike? I saw on cb7 that you're running ferrea retainers... are those offset by any chance? It sounds like the retainer is hitting the underside of the rocker arm.

cpmike

hey shawn.

ive adjusted the valves and ran the car with no problems after the valve spring and retainer installation. this problem is only after i had overrevved and bent my exhaust valves. replaced the valves, the exhaust side adjusts fine, having problems with the intake side, which i didnt touch.

i do not believe they are offset. i checked clearance, theres plenty of room -

i can push the rocker arm down by hand until it touches the valve (gap is set to a few mm at this point) and then as if it were spring loaded, the rocker arm pops back up, against the cam.

i just cant imagine how the rocker arm could be spring loaded, unless the camshaft has been ultra magnetized somehow lol.

the two main rockers are not joined to the vtec rocker, as the vtec rocker moves freely - so they arent bouncing against the vtec rocker return spring.

i cant imagine whats giving them an upward force!!! and i just finished putting it all back together, i dont want to take the timing belt and cams all apart AGAIN :\

Rosko

iTrader: (1)

hmmn thats wierd haha... maybe it IS magnetized, dunno what else would make it do that.

DCFIVER

Not sure what you mean post pics..and I'll try to help.

ninja 6

did you follow the h-t write up? or the helms manual directions?

98vtec

frozen LMA?

117

LMA shouldn't affect the valve adjustment unless VTEC is locked for some reason. There is some friction between the primary and VTEC rockers when VTEC isn't engaged, but it shouldn't be enough that you can't easily move the rocker by hand.

117

I'd pull the rocker shaft and make sure that the rockers move freely on the shaft.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cpmike &raquo;</TD></TR><TR><TD CLASS="quote">im very confused as to why these rockers are so stuck. perhaps the rod that they pivot on is dried out and not lubed? the head was sitting dry for a long time.

what can i try?</TD></TR></TABLE>

cpmike

i followed the helms directions.

pb blaster worked well in loosening the rocker arms up. i can move them, just they seem spring loaded...

anyway i think im going to have to pull it all apart again...

flyrod

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cpmike &raquo;</TD></TR><TR><TD CLASS="quote">i can push the rocker arm down by hand until it touches the valve (gap is set to a few mm at this point) and then as if it were spring loaded, the rocker arm pops back up, against the cam.</TD></TR></TABLE>

This sounds just like the valve spring is pushing on the bottom of the rocker. Are you sure the retainer is not hitting the rocker? Do all the valves do this or just a few? Now that you got the rockers loosened up, try setting the gap back to something smaller. Are they still spring loaded with a normal gap? Maybe you are missing keepers or the retainers are cracked/broken? If the VTEC pin is stuck engaged, maybe the LMA is pushing the rockers up?

cpmike

thats what it feels like, but the vtec pin is not engaged, as im able to move the vtec rocker freely.

i am positive the rocker is nowhere close to hitting the retainer.

and the retainers & keepers are new titanium, and i doubt they are bent/cracked. no keepers are missing.

i spent most time on 4 of the intake valves, the other two cylinders i didnt bother checking before i got annoyed and closed the hood and walked away. its the exact same problem for all 4 main rockers for cylinders 1 and 2. i need to jack the car back up and check out 3 and 4, but my problem still remains...

and yes, they still seem spring loaded when set to a normal gap. just harder to tell, as theres not as much travel room to see it happen.


i appreciate the feedback everybody, helps get ideas flowing... im just stumped and confused

cpmike

after taking a better look at it today, my rocker arms are in fact touching the retainers.

my supertech valve stems were machined to proper length, and he measured and shimmed the springs.

im running ferrea springs and titanium retainers.

after initial installation, i had no problems whatsoever. but i misshifted and bent my exhaust valves, and now i am having this problem on the intake side.

i wonder why the retainers would be sitting higher now. none of them are crooked, and i dont see any of the locks missing.

Rosko

iTrader: (1)

hmmn, why were the valve stems machined??

cpmike

my machine shop said my supertech valves were SLIGHTLY too tall, so he shaved down the tip a tiny bit.

i was having oil starvation issues (hence the worn exhaust rockers from before)... is it a possibility that the locks on the intake retainers got worn down, allowing the retainers to sit higher up? its not like the valves got any longer... but then again the retainers are titanium and the locks are hardened, so that may not be the problem.

looks like ill be taking the cams and stuff back out for sure, take a better look at the retainers and locks... maybe they arent seated properly.

bluedlude

that sucks man. is it all of you intake retainers? had you checked it before your miss shift for clearance?