CA18DET flywheel flange thickness

[schnabulator]

Hi folks, I need your help.
There are 2 versions of the CA18DET flywheel.

One from '88, September — '89, April with P/N 12310-36F00 (should be thinner).

One from '89, April — with P/N 12310-35F00 (should be thicker).

The difference is the thickness of the mounting flange.

It would be very helpful, if some people, who have a flywheel in there garage, would measure that thickness with calipers and post the dimensions here.
If you have a precise scale, you could measure the weight as well. There should be a weight difference as well.
That would be truly awesome !

Depending on the thickness of the flywheel, it is necessary to choose the correct bolts.
The thread is both the same, M10x1.0mm.

Estimated bolt length:
'88, September — '89, April manual gearbox P/N 12315-55M00 should be around 25mm (under head length).

'89, April — manual gearbox P/N 12315-D4000 should be around 30mm (under head length).

Cheerio,
Flo

p.s. please do not link onto another thread, there is to much wrong information out there.

[R3K1355]

99% of people are going to have the second flywheel, it's very rare to find a 1988 CA18DET knocking around.
If 12310-36F00 was only made for about 6 months, that makes it very rare.

[white13]

I actually have 2 different style flywheels for the CA. When I rebuilt my engine I posted some pictures on here asking which was the correct one to use. I never knew there was an early and a late flywheel. Unfortunately one of them is in use now so I can’t measure it for you


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[ANDY black s13]

99% of people are going to have the second flywheel, it's very rare to find a 1988 CA18DET knocking around.
If 12310-36F00 was only made for about 6 months, that makes it very rare.

I agree with this,at a guess the early cars had DE spec cranks/thinner FW mount area and went larger FW mount area for DET,
all my CA engine stuff is later/facelift so will all be 30mm

[green_rs13]

i seem to remember that there is 2 different clutch release bearings.
I wonder if the first one is the same as out of a bluebird or one of the other weird old cars, I seen a CA engine in a pile of scrap CA's that I know all came out of S13's at one point and it had that weird breather cover that don't have the breather box on the inlet side, it also had different coloured to stock injectors but they were the same colour as rb20 injectors so the correct size. and some other stuff I found mildly interesting at the time.

I think you can tell the engine between pre and facelift by the AAC valve, one has a different coloured something or other than the other one. green and brown ring a bell.

its been that long since ive messed with CA's that ive forgotten more than I knew.

[skyshack]

I think you can tell the engine between pre and facelift by the AAC valve, one has a different coloured something or other than the other one. green and brown ring a bell.

That's not a way to tell. I had a '91 'Exec' and that had the early type of ACC.

[R3K1355]

That's not a way to tell. I had a '91 'Exec' and that had the early type of ACC.

Didn't things get abit weird around changeover time tho, some cars left the factory with abit of a mish-mash of parts?

I wonder if the first one is the same as out of a bluebird or one of the other weird old cars, I seen a CA engine in a pile of scrap CA's that I know all came out of S13's at one point and it had that weird breather cover that don't have the breather box on the inlet side, it also had different coloured to stock injectors but they were the same colour as rb20 injectors so the correct size. and some other stuff I found mildly interesting at the time.

I think some JDM cars like the Blubird and S12 Silvia got the DET, the same cars over here were shipped with the 8V turbo lump.
A few imports probably made it over, but they must be like Hens teeth.

[schnabulator]

Guys, please stick with the topic.

If you have a flywheel, please measure and let us know the measurement.

The weight would be interesting as well.

[gaswizards]

Have a flywheel and bolts here, will measure later and get back to you

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[ANDY black s13]

Guys, please stick with the topic.

If you have a flywheel, please measure and let us know the measurement.

The weight would be interesting as well.

my Ogura racing clutch/fly wheel combo the flywheel mounting pad thickness is 17mm and the flywheel alone weights 5.647 kgs

[schnabulator]

my Ogura racing clutch/fly wheel combo the flywheel mounting pad thickness is 17mm and the flywheel alone weights 5.647 kgs

Do you have a photo or a part number of that flywheel?

[ANDY black s13]

it's an Ogura single solid center disc,it has no part number just the ORC logo on the gold anodised aluminium cover,
seen others (for SR20) start with NS then a number
not good with the picture uploads, will try something later on tonight

[gaswizards]

My bolts are 30mm from below head of bolt and flywheel flange is about 18 mm thick

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