i have a GSR head and a B16 head. vtec does not work on the GSR head even though the solenoid is working 100%.
so, i take a look at GSR head and the B16 head to see if there are any differences in the rocker assemblies, as i did not put the head together.
i noticed all "pins" or "dowels" are present in all rockers, as well as the spring-loaded ones. sorry for my lack of technical terms, i've never had to pull a head COMPLETELY apart.
i DID noticd that the B16 head has small, steel pins in between the vtec rocker and the rockers on either side. i'm not referring to the larger dowel pins, but the tiny pins that keep the rockers somewhat together.
so, on the B16 head there are pins on either side of the vtec rocker.
on the GSR head, i only have those tiny pins on ONE side. i assumed this was fine, as it's on the same side of EVERY rocker ( the side where the oil comes in ). i can lift the vtec rocker and the rocker with the spring-loaded dowel seperately.
should these two have the pins in them as well?

i'm not sure if i'm making any sense.... but i can post pics in if neccessary.

i'm about to burn my car to the ground...... i can not figure out why vtec is not working. any help would be appreciated. thanks.

 

can I get alittle history here? I have had these problems before on our B16A strokers. But need to know exactly what has happened and what's happening now.
Let me know.
Absubtle
AIM- Absubtle
Pa

 

there is no history. that's it. electirical is fine. it must be mechanical. we're sure oil pressure is right. we bypassed everything on the solenoid so that the solenoid opened up no matter what.
i noticed a difference between the assbly on the b16 and GSR and wondering if it should be that way..?

vtec USED to work before head was checked out and assembled for the fourth time...

 

bump. this isn't familiar to anyone?

aim: kaj750

 

alright man, those steel thin pins you are talking about is fine and that is how Honda made them. compare them to the older vtec heads, the newer heads have those single steel thin pins design as to the older ones have on both sides. now, about your vtec, check oil pressure at the back of the block where the oil pressure sending unit is ( 10psi at idle rpm, 50 psi at 3000rpm, w/ vtec engaged slight drop to about 40psi ). second, check your oil level. the oil weight that vtec motors use is 5w30. any other weight is fine but 5w30 is the recommended. third, check the vtec solenoid filter it might be clog. fourth, open the valve cover and see if all the bolts that holds down the bracket that holds down the camshaft is on there and MAKE SURE the 2 bolts that is near the cam sprockets are on there for both of the brackets because the bolts actually helps in keeping the pressure high without those the oil will spray out of that bolt hole and the pressure will drop to where it is enough to lube the motor but not for vtec. if everything else fail then its probably your oil pump. I know becuz I have had the same problem. hope this help

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by foxone64 &raquo;</TD></TR><TR><TD CLASS="quote">alright man, those steel thin pins you are talking about is fine and that is how Honda made them. compare them to the older vtec heads, the newer heads have those single steel thin pins design as to the older ones have on both sides. now, about your vtec, check oil pressure at the back of the block where the oil pressure sending unit is ( 10psi at idle rpm, 50 psi at 3000rpm, w/ vtec engaged slight drop to about 40psi ). second, check your oil level. the oil weight that vtec motors use is 5w30. any other weight is fine but 5w30 is the recommended. third, check the vtec solenoid filter it might be clog. fourth, open the valve cover and see if all the bolts that holds down the bracket that holds down the camshaft is on there and MAKE SURE the 2 bolts that is near the cam sprockets are on there for both of the brackets because the bolts actually helps in keeping the pressure high without those the oil will spray out of that bolt hole and the pressure will drop to where it is enough to lube the motor but not for vtec. if everything else fail then its probably your oil pump. I know becuz I have had the same problem. hope this help</TD></TR></TABLE>

okay. so only one set of pins is right on my GSR head. got it.
my sending unit is gone. i run hondata and tapped into the that location with a steel braided line. this goes to a "t" with a sending unit for my oil pressure gauge. then, it continues to my oil feed line for my turbo. i can just use that oil pressure gauge, right? it looks that oil pressure is fine going INTO the head.. not sure about going through the rockers. i have to be DRIVING in order to check the oil pressure drop for vtec, right?

we thought not enough oil was getting in so we used the "ls/vtec" method and added another oil line into the back of the head where people do the ls/vtec conversion. this was also "t"ed off the same line that my sending unit and turbo feed line are using.

all cam caps bolts are torqued to 16ftlbs.

i always use 5w30 oil. i have a bit TOO much oil now. SLIGHTLY above second line.. so i know i'm not too low.

vtec solenoid filter is clean.

oil pump. THAT would suck. but it makes more sense than being a problem with my head.

i'll check the oil pump.. i can't think of ANY thing else it can be. we're going to test the oil pressure in from port in the front of the head.. i dunno if that will tell us anything that my regular oil pressure gauge doesn't. the pump is brand new, so that would suck.

i'm still trying to solve my problem. anyone else have any ideas? keep them coming! thanks!

 

bump for the late nighters

 

'nuther bump before i rip this head off and put another on....?

 

to check vtec oil pressure:
rev the car to 3k+, the give the vtec sol. 12v; oil pressure should be 50+psi (at the vtec oil pressure check port)

are your vtec rocker arm shaft oil restrictor things on?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">to check vtec oil pressure:
rev the car to 3k+, the give the vtec sol. 12v; oil pressure should be 50+psi (at the vtec oil pressure check port)

are your vtec rocker arm shaft oil restrictor things on? </TD></TR></TABLE>

i can just use the oil pressure guage in my car to check pressure, right?

as for "are your vtec rocker arm shaft oil restrictor things on?", i'm not sure what you mean.

 

you need to check vtec oil pressure, not from the back of the block.

As for the ''thingies'' they go on the rocker shafts; you have to take them out in order to take the shafts out.
I could get a pic if you like..too lazy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">
As for the ''thingies'' they go on the rocker shafts; you have to take them out in order to take the shafts out.
I could get a pic if you like..too lazy</TD></TR></TABLE>

that would be appreciated, thanks. everything LOOKS fine, but i'll admit i'm not 100% sure on what to look for.

as for the oil pressure, i figured with the extra oil line going directly into the BACK of the head ( like an ls/vtec setup ) the oil pressure at the solenoid would be the same as my gauge.. but i'll give it a shot anyway.

i'm very very very tired of working on this motor. i've had it since march and have not enjoyed my car since.

the motor was originally purchased in july of '04 and has NEVER truly run right. it's seriously getting old.