I am replacing the busted head of an F22B with the head from an H23A. I am in the middle of the project, but had a few questions before I proceed.

-Are the intake manifolds the same?

-Which timing belt do I use?

-Can someone who has a 1992 or 1993 crawl under their car and help me identify a wire:
Red wire w/ yellow stripe. Comes out of the main wiring harness in the knock sensor area, under the intake manifold. I think it goes to the ECT sensor (engine coolant temp sensor), which is located to the left of the oil filter. However, I'm not sure. I have a harness on that sensor, but both wires have been pulled out.

I also found a green wire w/ a white stripe in the same area...


Thank you.

 

I have the set up your refering to and will tell you most people use the intake manifold off the H23 since its better flowing. I believe the F22 that came in the 91-93 Accord had dual butterflies but the top half was all you would use from the H23 on your F22.
The H23 manifold is better flowing than the F22.

You would use the H23 timing belt and lower timing gear.

The ECT is red and yellow at the top of the BLOCK right above the oil filter.

If you run into any problems let me know.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedH22Accord &raquo;</TD></TR><TR><TD CLASS="quote">I have the set up your refering to and will tell you most people use the intake manifold off the H23 since its better flowing. I believe the F22 that came in the 91-93 Accord had dual butterflies but the top half was all you would use from the H23 on your F22.
The H23 manifold is better flowing than the F22.

You would use the H23 timing belt and lower timing gear.

The ECT is red and yellow at the top of the BLOCK right above the oil filter.

If you run into any problems let me know.


</TD></TR></TABLE>

the sensor port above the oil filter leads to an oil passage.

thanks for the advice

 

It's the F22B DOHC right? If that's the case the intake manifold is the exact same as the H23A1...

A P14 lower and P13 upper plenum... the gaskets are the same as the H23A1...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedH22Accord &raquo;</TD></TR><TR><TD CLASS="quote"> I have the set up your refering to and will tell you most people use the intake manifold off the H23 since its better flowing. I believe the F22 that came in the 91-93 Accord had dual butterflies but the top half was all you would use from the H23 on your F22.
The H23 manifold is better flowing than the F22.</TD></TR></TABLE>

the H23A1 manifold can be bolted onto any F22A sohc head... you can use the entire thing not just the upper plenum...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedH22Accord &raquo;</TD></TR><TR><TD CLASS="quote">You would use the H23 timing belt and lower timing gear.
</TD></TR></TABLE>


If you are using the F22B dohc block you might have to think about using a GS-R or Type R timing belt the same as you would on the F22B head...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZigenBallz &raquo;</TD></TR><TR><TD CLASS="quote">

the H23A1 manifold can be bolted onto any F22A sohc head... you can use the entire thing not just the upper plenum...</TD></TR></TABLE>

I stand corrected I justs used the H23A timing belt

 

little update, I am further into the project and need some advice

here is the whole setup:

F22B block
H23A head
F22B cams & cam gears

I used an H23A headgasket. Obviously it fit the head ok, but it overlapped some of the oil drain passages a little bit. I don't think its going to be a problem though.

The timing belt I was given by my shop is supposedly the belt normally used on F22B motors. With F22 timing belt gear & cam gears, I would think this would be appropriate, but it doesn't fit right. The crank is either too far advanced on one tooth, and too far retarded on the next.

Should I still be using an H23 timing belt with the above mentioned setup?

 

Don't mind me if I post a useless post here but I am a little confised here.

Ok, basically, you made a JDM F22B motor. Correct?? I would've thought that you would need to use H23 cams and cam gears.

If I remember what i read earlier, the H23 and JDM F22B timing belts were EXACTLY the same. Since you are using F22 cams and cam gears with you setup, could this be causing the problem??

I hope what I said makes sense. I am trying to learn too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">Don't mind me if I post a useless post here but I am a little confised here.

Ok, basically, you made a JDM F22B motor. Correct?? I would've thought that you would need to use H23 cams and cam gears.

If I remember what i read earlier, the H23 and JDM F22B timing belts were EXACTLY the same. Since you are using F22 cams and cam gears with you setup, could this be causing the problem??

I hope what I said makes sense. I am trying to learn too. </TD></TR></TABLE>

It WAS a JDM F22B motor. It broke a timing belt, and bent a handful of valves. I had a spare, but bare, H23 head... so I took the DOHC F22B head off, thinking that it was identical to the H23 head. It looks to be about 99% the same - it bolts up and everything, but the oil drain passages are shaped differently. I don't think that part will be a problem though.

I took the cams w/ gears out of the F22B head, that was on the motor originally, and dropped them in my bare H23 head.

So I replaced the head of a JDM F22B with an H23 head, and now can't figure the timing belt out.

 

Oooooh, I see. I thought you took an Accord block and mounted the H23 head to it. I was wondering how you used SOHC F22 Accord cams. lol My bad.

I see now.

I am still confused. I've read that people who bough the F22B motors replaced the timing belt with the H23 belt and it worked fine.

I think there is a guy on PreludeOnline who has an F22B motor in his Prelude. I think his name is OSOFAST on that site. Do you have an account on PO.COM??

Sorry, I can't offer anymore advice. Good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">I am still confused. I've read that people who bough the F22B motors replaced the timing belt with the H23 belt and it worked fine.</TD></TR></TABLE>

thats what I would have thought, but I again made the mistake of trusting my shop.

lets see, whats the score now?

SHOP: 0
TRUTH: 43

 

The only F22 that uses the H23 timing belt is the JDM F22 DOHC. If you are using a USDM F22B block then you need to change the lower timing gear to either the H23 or the JDM F22B DOHC lower timing gear. Otherwise the lower timing gear is to large for the H23 belt.

 

what is a USDM F22B from? How would I know if its a USDM or JDM F22B?

I thought this was a JDM F22B motor, but I don't know now...

its got an open deck, if that matters...

 

Where did you get the motor from??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZigenBallz &raquo;</TD></TR><TR><TD CLASS="quote">If you are using the F22B dohc block you might have to think about using a GS-R or Type R timing belt the same as you would on the F22B head...</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Greyout &raquo;</TD></TR><TR><TD CLASS="quote">what is a USDM F22B from? How would I know if its a USDM or JDM F22B?</TD></TR></TABLE> The USDM F22B1 comes in Accords, and some Preludes usually if its JDM theres no number after the last letter example B18C1= USDM GSR 170 hp vs. B18C =JDM GSR 185 hp and so on

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Greyout &raquo;</TD></TR><TR><TD CLASS="quote">I thought this was a JDM F22B motor, but I don't know now...

its got an open deck, if that matters...</TD></TR></TABLE> The Accord F22b1 comes with an open deck. I'm not sure if the JDM F22B version is open or closed. But the stamp should answer that. Take a pic and post it.

 

Here's the set up

 

the engine was in the car when I get the car, so I have no idea where the motor came from.

I'll have to check it out when I get home

 

If all else fails, you can always buy my H23.

 

just out of curiosity how much?

 

and wtf car is the USDM DOHC F22B motor out of, just in case I need to double check the part number at the parts store

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Greyout &raquo;</TD></TR><TR><TD CLASS="quote">and wtf car is the USDM DOHC F22B motor out of, just in case I need to double check the part number at the parts store</TD></TR></TABLE>

I don't think they ever made a DOHC F22 motor.

Also, if you have an open decked block, that means it is a 97 and newer block, right??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">

I don't think they ever made a DOHC F22 motor.
</TD></TR></TABLE>

lol read the thread again

as far as the open-deckness, I have no idea.

 

^^ I think he means in the US.

Pirate

 

Just gonna throw some of my experience in here.......

Just a few weeks ago I was helpin a bud drop in a F22b into his Si, and we replaced the timing belt and water pump and junk while we were at it and had the motor out.

He bought a brand new H23 timing belt, since people on here had said it would fit. We put it on and it had MAJOR slack. It didn't fit. We got a F22b timing belt and it worked fine.

I guess the deck height or something is different between the two motors, but the H23 timing belt wouldn't work on the F22b.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">^^ I think he means in the US.

Pirate</TD></TR></TABLE>

Yes, that's what I meant. Thanks!!