H22a oil orifice in block or not?
#1
Honda-Tech Member
Thread Starter
Join Date: Aug 2005
Location: Cincinnati, oh, united states
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
H22a oil orifice in block or not?
We are trying to remember if my jdm h22a has and oil orifice in the block or not? I thought for sure it would but I have had some people tell me it doesnt. We assembled it without it and I dont have enough oil pressure in the head to engage vtec when the car is completely warmed up. I will have vtec until the car gets to full operating temperature.
#4
Honda-Tech Member
Join Date: Oct 2006
Location: stockton, ca, United States
Posts: 233
Likes: 0
Received 0 Likes
on
0 Posts
Re: H22a oil orifice in block or not?
Your car has to reach operating temp be for vtec will work, did you remember the o-ring under the center cam cap? What oil pressure do you show on your gage?
#5
Re: H22a oil orifice in block or not?
and there is NO oring under the canter cam cap on an h22.
there is an orifice that fits into the head under the center cam cap, but the h22 head does not get an oring under the center cam cap like the b series do.
#6
Honda-Tech Member
Join Date: Oct 2006
Location: stockton, ca, United States
Posts: 233
Likes: 0
Received 0 Likes
on
0 Posts
Re: H22a oil orifice in block or not?
Now i understand what was written, thank you for clearing that up,i was referring to #11 in the pic that goes under the the center cam cap but on the orifice.
Whats your pressure read when cold/warm?
Whats your pressure read when cold/warm?
Last edited by EGHATCH4YA209; 06-20-2009 at 12:06 PM.
#7
Re: H22a oil orifice in block or not?
just to be clear for the op..
that oring (#11) wraps around the orifice, then the orifice is inserted into the head. there are two more similar orifices/orings in the head under the first cam caps as well.
you wont actually see the oring after the orifice is inserted into the head.
you wont see an oring under any of the cam caps.
that oring (#11) wraps around the orifice, then the orifice is inserted into the head. there are two more similar orifices/orings in the head under the first cam caps as well.
you wont actually see the oring after the orifice is inserted into the head.
you wont see an oring under any of the cam caps.
Trending Topics
#8
Member
Re: H22a oil orifice in block or not?
To answer your question, there is no block restrictor on the H22 VTEC. I installed one in my first H22 build, took awhile to figure out why no VTEC.
#9
Honda-Tech Member
Join Date: May 2005
Location: Washington
Posts: 1,068
Likes: 0
Received 0 Likes
on
0 Posts
Re: H22a oil orifice in block or not?
just to be clear for the op..
that oring (#11) wraps around the orifice, then the orifice is inserted into the head. there are two more similar orifices/orings in the head under the first cam caps as well.
you wont actually see the oring after the orifice is inserted into the head.
you wont see an oring under any of the cam caps.
that oring (#11) wraps around the orifice, then the orifice is inserted into the head. there are two more similar orifices/orings in the head under the first cam caps as well.
you wont actually see the oring after the orifice is inserted into the head.
you wont see an oring under any of the cam caps.
#10
Re: H22a oil orifice in block or not?
yes im sure, if yours came w/ an oring sitting on top of the orifice under the cam cap, someone has been into the motor and mistakenly put it there.
#12
Honda-Tech Member
Join Date: Oct 2006
Location: stockton, ca, United States
Posts: 233
Likes: 0
Received 0 Likes
on
0 Posts
Re: H22a oil orifice in block or not?
Lol, this is fun.... you should not see the o-ring,if you see the o-ring remove it and remove the orifice to make sure it has an o-ring on it, if it does (as it should) you can throw away the other o-ring and reinstall the orifice....
#13
Member
Re: H22a oil orifice in block or not?
Why, there is NO restricter on a H22 VTEC block. Therefore no "o" ring.
#14
Honda-Tech Member
Join Date: Oct 2003
Location: Chicago
Posts: 6,619
Likes: 0
Received 0 Likes
on
0 Posts
Re: H22a oil orifice in block or not?
Don, you're talking about the oil control orifice for non-vtec engines that goes in the H23a1 block. This is the one in the head; B-vtec heads have this o-ring too.
#15
Honda-Tech Member
iTrader: (4)
Re: H22a oil orifice in block or not?
EGHATCH4YA209 is talkin about the orifice in the head, not the block...
#16
Re: H22a oil orifice in block or not?
Im seeking some clarification, I have scoured all the various service manuals from 91-97+ and everything I can get my hands on for the H22a1 vtech prelude shows the orifice and oring, yet all the forums state that oring should not be there. Im confused, which is it? Did they mis print the manuals?
Also, if the orings are infact in there by mistake, would this lead to no oil pressure measured at the head?
Also, if the orings are infact in there by mistake, would this lead to no oil pressure measured at the head?
#17
Honda-Tech Member
Re: H22a oil orifice in block or not?
Im seeking some clarification, I have scoured all the various service manuals from 91-97+ and everything I can get my hands on for the H22a1 vtech prelude shows the orifice and oring, yet all the forums state that oring should not be there. Im confused, which is it? Did they mis print the manuals?
Also, if the orings are infact in there by mistake, would this lead to no oil pressure measured at the head?
Also, if the orings are infact in there by mistake, would this lead to no oil pressure measured at the head?
all vtec heads have an oil control orifice in the top portion of the cylinder head which happens to be underneath the center cam cap. there is no orifice or o-ring that goes between the head and block on h22 engines. only non vtec H-series engines have this o-ring/orifice between block and the head. on h22 engines the o-ring goes around the orifice/oil control then pushed down into the galley of the cylinder head which happens to be below the center cam cap. there should not be any o-ring on or directly beneath the center cam cap where it mates to the cylinder head
#18
Honda-Tech Member
Re: H22a oil orifice in block or not?
sorry this is so late but i couldnt help but answer this....
all vtec heads have an oil control orifice in the top portion of the cylinder head which happens to be underneath the center cam cap. there is no orifice or o-ring that goes between the head and block on h22 engines. only non vtec H-series engines have this o-ring/orifice between block and the head. on h22 engines the o-ring goes around the orifice/oil control then pushed down into the galley of the cylinder head which happens to be below the center cam cap. there should not be any o-ring on or directly beneath the center cam cap where it mates to the cylinder head
all vtec heads have an oil control orifice in the top portion of the cylinder head which happens to be underneath the center cam cap. there is no orifice or o-ring that goes between the head and block on h22 engines. only non vtec H-series engines have this o-ring/orifice between block and the head. on h22 engines the o-ring goes around the orifice/oil control then pushed down into the galley of the cylinder head which happens to be below the center cam cap. there should not be any o-ring on or directly beneath the center cam cap where it mates to the cylinder head
I had my mechanic put together my h23vtec blue top vtec would not engage, tried tracing it down on the dyno electrical and mechanical then figured it has to be something with the oil passages. Sure enough took head off and I think it was installed wrong. It appears both bottom end and head have the same part. Installed it right and sure enought went to dyno and vtec worked... We first thought the headgasket was installed wrong and blocking it.
Thread
Thread Starter
Forum
Replies
Last Post
THEDirtyDseriesWOOT
All Motor / Naturally Aspirated
11
01-29-2009 06:00 PM