I'm in the middle of a 4th gen rebuild at the moment and I had to get a replacement crank.
My mechanics got a hold of a second hand oem crank in perfect condition and they are about to prep it.

Only trouble is that the replace ment crank that they got me has a bigger 'web' on it. i had no idea what the guy meant when he was describing it, but when I checked it out side by side with my original crank, i could see that one end of the new one did in fact have a bigger 'web'.

So, where did this new crank come from? The mechanics are confident that it is from a h23a the same as mine, but I couldn't see why they would change the size (and weight) of the crank. Any ideas?

I presume this means that in the end my car will drive with the same effect as having a heavier flywheel: slower acceleration and deceleration, but will ultimatley pull a lot smoother....?

let me know what you think is going on here please!

 

Are the crank and rod journals the same as the h23?

 

Could it be an F23 crank??

The F22 crank is the SAME exact crank as an H23.

The 98+ H22 cranks had slightly larger main journals. 55mm vs the standard 50mm found on the 92-96 H23 and 93-97 H22

 

What is a "web"?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">What is a "web"?</TD></TR></TABLE>

exactly what i was wondering, and why i didn't reply in the first place.

if its and h23 crank it should be the same as your old crank,

eitehr that get a picture and we can tell you

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arch-Angel &raquo;</TD></TR><TR><TD CLASS="quote">Only trouble is that the replace ment crank that they got me has a bigger 'web' on it. i had no idea what the guy meant when he was describing it, but when I checked it out side by side with my original crank, i could see that one end of the new one did in fact have a bigger 'web'.</TD></TR></TABLE>

yeah great...so now you and him know what a web is....but we still don't.

Are you sure it's an H23a crank...might want to compare the stroke measurements and main bearing journal sizes

 

Sorry about the confusion, he called it a 'web', and since I have NFI about cranks, I just went with it.
I meant the journals. They are bigger on the new crank. How will that affect the way the car drives?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arch-Angel &raquo;</TD></TR><TR><TD CLASS="quote">Sorry about the confusion, he called it a 'web', and since I have NFI about cranks, I just went with it.
I meant the journals. They are bigger on the new crank. How will that affect the way the car drives?</TD></TR></TABLE>

The crankshaft is from a 98+ H22A4 prelude. Are you planning to bore out your mains 5mm to fit it? I hope you are confident in your machine shop cause that's a lot of material...then you must use the larger 98+ bearing part numbers

 

hrmm, thats the sort of thing I was concerned about...
They told me it would work just as well as the original one, except that it would have the same effect as a heavier flywheel; ie smoother, but less acceleration.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arch-Angel &raquo;</TD></TR><TR><TD CLASS="quote">hrmm, thats the sort of thing I was concerned about...
They told me it would work just as well as the original one, except that it would have the same effect as a heavier flywheel; ie smoother, but less acceleration.</TD></TR></TABLE>

did they mention less stroke? lol

 

The H22 crank must be used w/ all the rest of the H22's internals. If you are just replacing an H23 crank w/ one from an H22, then you must also use the H22 rods and pistons.

And the bigger main journals are going to require more time and money.

Get a spare H23 crank from Car-Part.com; that way you at least get the right crank!

 

you might want to go to a different mechanic if he doesnt know the which crank is suppose to go in your car, not to mention you will lose displacement and you will have to buy rods and pistons from an h22, and he probably wouldnt be able to work with a machine shop very well if he tells them the web is bigger

 

thing is I have replaced most of the internals anyway. 89mm 9:1 pistons, billet rods, sleeves, etc. all H23 spec.
surely the mechanic would have realised if the new crank doesn't fit with the rest of the internals?! Funny thing is that the crank looked exactly the same except for the size of the journals. i thought maybe it had come of a later model H23- like a 95-96 maybe? Is that a possibility, or were they all the same size.
Or is it from another 2.3L engine? wasn't there an F23?
-Cheers

 

the f23 has a 97mm crank and 86mm bore vs. the f22's with 95mm stroke and 85mm bore. Also all the F23's have 55mm mains (the larger ones)

the Pirate

 

hrmm, maybe thats what the dude was going to put in then.
Keeping in mind that I am using oversized pistons (89mm)...

thanks for all the info guys