balbains324

Hi,
I have purchased the 35mm flywheel from baseballstud85 thinking it will fit my beta 1 here in the UK, but after I asked for the part number I realised it is the 35mm crank and not the 41mm crank.

I don't know what size crank I have but my car is an OBD I with beta 1 2.0l engine made in 1998. I tried finding out what crank I have from the dealer but they said they don't know all they can do is give me a genuine hyundai part number.

So now im wondering if I can bore it out if it is not the right size? would it affect the balance or performance or anything?

01tibby

if it's like it is in the states, you have a 41mm. any machine shop can bore it out to 41 though, should be cheap.

hmmmm



looks like you will also have to take off 2.5mm from the face as well.

balbains324

I spoke to fidanza if it would be ok to do and they said it is not advisable to try and modify the flywheel to fit because it will cause many problems.

I also found this, probably the same place where you quoted but with part numbers

These part numbers are relavent all over the world because I confirmed it with a UK hyundai dealer.

Technical Service Bulletin Group
Engine Mechanical

Number

99-20-004

Subject
Date

1996-2000 1.8L AND 2.0L ELANTRA/TIBURON ENGINE PARTS CHANGES
12-1999

Model

Elantra 1996-2000
Tiburon 1997-2000



1996 - 2000 1.8L and 2.0L elantra / Tiburon engine parts changes
description:

Several component changes have been made that apply to the 1.8L and 2.0L engines used in the 1996 - 2000 Elantra and Tiburon. These changes involve the following parts:

Crankshaft

Flywheel and Flex Plate and Mounting Parts

service information:
CRANKSHAFT


The new crankshafts (P/N 23110-23710 for the 2.0L); P/N 23110-23510 for the 1.8L) released July 8, 1999 have the following dimensional changes.


A. The flywheel mounting flange (pilot) diameter has been reduced from 41 mm to 35 mm.


B. The flywheel mounting flange (pilot) height has been increased from 4 mm to 6.5 mm.


C. The crankshaft rear flange thickness has been reduced from 20.5 mm to 18 mm.


D. The crankshaft rear flange bolt hole depth has been reduced from 15 mm (± 1.5mm) to 12.5 mm (± 1.5 mm).

NOTE
The new crankshafts are not interchangable with the previous ones. However, a crankshaft spacer (P/N 23112-23900) can be attached to the new crankshafts to make them interchangeable with the older crankshafts.

FLYWHEEL AND FLEX PLATE

The flywheel and flex plate assemblies have been changed to fit the new crankshaft. The new flywheel and flex plate assemblies are not backward compatible with the older crankshaft. However, the older flywheel and flex plate can be made interchangeable by mounting a crankshaft spacer (P/N 23112-23900) onto the new style crankshaft.


A. The flywheel and flex plate assembly pilot bore diameter has been reduced from 41 mm to 35 mm.


B. The flywheel pilot bore depth has been increased from 5.0 mm to 7.5 mm. Dimension B is recessed.


MOUNTING HARDWARE: FLYWHEEL AND FLEXPLATE

Each crankshaft and flywheel / flexplate combination necessitates that specific mounting bolts to the crankshaft are used. Tables 1 and 2 identify the different combinations for manual and automatic tranaxles.

NOTE
Crankshaft P/N 23110-23710 for the 2.0L is part of Short Block Sub-Assembly P/N 21102-23C01. Also, crankshaft P/N 23110-23510 for the 1.8L is part of Short Block Sub-Assembly P/N 21102-23B01. These short blocks also require the use of Tables 1 and 2.

Table 1: Manual Transaxle
Crankshaft
Flywheel
Spacer
Flywheel Mounting Bolt

New
Old
New
Old

23110-23510 (1.8L)
23200-23010 (1.8L)
23112-23900
23311-23000

23110-23710 (2.0L)
23200-23210 (2.0L)
23112-23900
23311-23000






Old
Old
N/A
Old

23110-23030 (1.8L)
23200-23010 (1.8L)
N/A
23311-23000

23110-23220 (2.0L)
23200-23210 (2.0L)
N/A
23311-23000






New
New
N/A
New

23110-23510 (1.8L)
UNAVAILABLE
N/A
UNAVAILABLE

23110-23710 (2.0L)
23200-23700 (2.0L)
N/A
23311-23000


Table 2: Automatic Transaxle
Crankshaft
Drive Plate (Flexplate)
Spacer
Adapter Plate (2)
Drive Plate Mounting Bolts

New
Old
New
Old
Old

23110-23510 (1.8L)
23211-32650
23112-23900
23226-32600
23311-26050

23110-23710 (2.0L)
23211-32650
23112-23900
23226-32600
23311-26050







Old
Old
N/A
Old
Old

23110-23030 (1.8L)
23211-32650
N/A
23226-32600
23311-26050

23110-23220 (2.0L)
23211-32650
N/A
23226-32600
23311-26050







New
New
N/A
New
New

23110-23510 (1.8L)
23211-23060
N/A
23226-23550
23311-23550

23110-23710 (2.0L)
23211-23060
N/A
23226-23550
23311-23550


INTERCHANGEABILITY: See Below

Old to New = NO


New to Old = Only with spacer/adapter! See tables for details.

hcriddick21

Guess I'm reviving an old thread but gonna have to do it. Question, did anyone ever go and get a spacer to make the flywheel work and what's the price's going for the spacer? I can get a machine shop to bore out from 35mm to 41mm for around thirty dollars but if the spacer is a little more I'd rather go that route and not have to mess with the problems that might arise if it's not perfectly bored. I bought this lightweight flywheel back in 06 and never put it on and I'm tired of it just collecting dust and used as a huge paperweight. My trans is from a 97 1.8L tib but my engine is from a 99 2.0 tib.

Stocker

The larger flywheel hole on a smaller crank mounting flange was a problem for Hyundai as well as for us. There is a Hyundai OEM part number for this adapter that is a special order from Hyundai. I have one on my car that I purchased from my local dealership. It works perfectly.



Part number, photo of said adapter, diagram and specifications of the crank flanges, all here for you:



https://www.hyundaiaftermarket.org/f...ost__p__541075