jdm f22b valves

[deevergote]

No.
Your part numbers you guys seem to use are different from the japanese numbers we use. (From every case I've seen on here anyway)



Simple example.
Anyone care to post the US numbers for these parts?

Our oil filter part number is - 15400-RAF-T01
And our sump plug number is - 94109-14000

Edit, Just checked:

Valves for 92 H23 Prelude
Intake - 14711-PT2-000
Exhaust - 14721-PT2-000

Do you have access to the part numbers for the F22B to compare? If you guys use the Japanese part numbers, then that makes it MUCH easier, because you speak English!




bigbozz24, I don't believe the valve tap you hear will be fixed by replacing the valves. That'd be more likely due to the cam, rockers, springs, or a combination of the three. Experimenting with different oil weights may quiet the valves down a bit. Honda engines in general have fairly noisy valvetrains. My 09 Fit even makes a good deal of chatter (granted, it has 245,000 miles on it... ) It's still perfectly healthy.
You really just need to replace a valves if your current valves get damaged in some way. If you do a compression test on your engine and find one or more cylinders to have noticeably low compression, it MAY be due to a damaged valve. It could just be a result of deposits on the valve or seat, or it could be a result of a valve that's been bent or burned. If you have no major compression loss, then it's unlikely you need to replace your valves. The only reason to do so would be if you're doing a full head build, and you'd like to use some sort of performance valve to raise the compression ratio, lower mass (not that OEM valves weigh very much...), or run oversized valves to be used with some major headwork.

[evil_demon_01]

Do you have access to the part numbers for the F22B to compare? If you guys use the Japanese part numbers, then that makes it MUCH easier, because you speak English!

I have access, But I need to know what Year and model car the engine is from.
Yes the part numbers are the same as japan

[bigbozz24]

Thanks Deev !! I'm going to re adjust them to the specs given to me here and try a heavier oil (currently using 10-40 valvoline) but next oil change after redoing the valves I'm adding some Lucas treatment to lube it better hopefully this quiets it up a bit..

[bigbozz24]

Evil** its a Jdm f22b out a prelude SI in Japan according to Wikipedia its similar to the USDM H23

[deevergote]

Similar, but NOT the same. The valves may be, but that's what we're trying to find out.

Colin, check 92-96. I believe the F22B was only offered in the 4th gen Prelude, so there shouldn't be multiple variations of it (even though 96 was OBD2, the actual engine SHOULD be the same, I'd assume...)

[NWaccord]

Does Honda have the same part numbers internationally? The H23A1 is a North American engine, and was not offered in Japan. The F22B is a Japanese engine, and was not offered in North America. To my knowledge, the two engines were never sold parallel to each other in the same market (especially since they both sat in the engine bay of the mid-level Prelude.)

I meant the part# of H23a1. I'm not sure if there the same part# in other countrys. But some parts off the F22B head are stamped with H23a1 part#(P30,PT2) like the cam seals for example. The valves measure same specs, as with the rest valve guides/stem seals/ect..... Cant remember clearly, but i think there stamped with the same letter(valves)
But they do work

[wed3k]

The reason I'm asking about my valves is cuz in cold start they tap like crazy but then quiets down. So I adjusted them according to the #s that I got from here but they still tap like crazy.so on cold start my motor sounds like crap so I was told to adjust them tighter or to check the valve components to see any worn in them due to be driven with loose valves for a while so I'm just trying to figure out what to do cuz I'm tired of dumping $$.trying to lower the roughness on cold start!!

what are they being set at?

[evil_demon_01]

Colin, check 92-96. I believe the F22B was only offered in the 4th gen Prelude, so there shouldn't be multiple variations of it (even though 96 was OBD2, the actual engine SHOULD be the same, I'd assume...)

I'll check tomorrow and see what I can find.
Japan has so many variations of a single car that info isn't entirely easy to find.

Apparently the BA9 is the only one that came with the F22B and can't be confused with any other variations, so I'll check it tomorrow.

[Accrdwgnguy]

When I had the machine shop re-do my F22B DOHC head, I ordered up new valve seals for H23A1. They carry the same PT2 part number to match the PT2 F22B head.

P14 is the part designation for H23A1
PT2 - F22B
PT0 - F22xx
P13 - H22A

Certain parts are interchangeable between engine series. Do your research.

[evil_demon_01]

Yep, JDM BA9 F22B lists the same IN/EX valves part number as the JDM H23.

[bigbozz24]

Intake 0.003-0.004 exhaust 0.006-0.007 those are the numbers I used for my valve lash

[deevergote]

Yep, JDM BA9 F22B lists the same IN/EX valves part number as the JDM H23.

The JDM H23 is a VTEC engine, though. To my knowledge, Japan never got the non-VTEC H23A that we got in the US as the H23A1.

Does that mean the VTEC H23A valves are the same as the non-VTEC F22B valves?

[wed3k]

Intake 0.003-0.004 exhaust 0.006-0.007 those are the numbers I used for my valve lash

thats not right.

[evil_demon_01]

The JDM H23 is a VTEC engine, though. To my knowledge, Japan never got the non-VTEC H23A that we got in the US as the H23A1.

Does that mean the VTEC H23A valves are the same as the non-VTEC F22B valves?

The Ascot Innova came with the Non Vtec H23, which is from Japan
It is H23A

JDM Non Vtec DOHC H23 valves, are the same as JDM Non Vtec DOHC F22B.
If they are interchangeable between US models I'm not sure, though I see no reason why they wouldn't.

[deevergote]

Interesting. I never knew there was a non-VTEC H23A available in Japan! Dammit... so much for that exclusive North American engine...

But I'm sure it's very similar, if not identical to, the US H23A1... so the valves should be interchangeable.