Vin number confirmation (Corona 1974)

[jackrmee 0]

Hi guys,

I’m helping a guy to find parts for his 1974 Corona 2l auto saloon.

He needs a brake master cylinder and our usual place (Rockauto.com) are out of stock.

Thing is, everywhere I search require the vin number.

Found the vin number on the registration document and also on the vehicle, but the places say it should be 17 digits long. Neither are 17 digits.

The number on the paperwork is RX12908053 (as it is on the vehicle), but the engine plate has “HD” after the model.

Can anyone help in which number is correct please?

Thanks

 

 

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[flash22 324]

In japan they use a frame number, due to its age it may not be on any data bases, but i will have a look

[FROSTYBALLS 2,982]

The 17 digit format was adopted from 1981, so a 1974 model wouldn't necessarily follow that format.

[flash22 324]

After a bit of digging A RX12 would have been sold under the Toyopet brand in Japan, the nearest equivalent would be the 73-79 corona RT10 

edit. Booster or non booster, single or twin outlet ?

[jackrmee 0]

After a bit of digging A RX12 would have been sold under the Toyopet brand in Japan, the nearest equivalent would be the 73-79 corona RT10 
edit. Booster or non booster, single or twin outlet ?

Thanks guys!!

Ummm, it has a booster I think. It’s bolted onto a round thing, which I seem to remember had booster written on it.
It has 2 reservoirs.


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[flash22 324]

I take your friend is state side

[flash22 324]

A bit more digging the RX12 is better known as the Mark II

rebuild kits.

[jackrmee 0]

A bit more digging the RX12 is better known as the Mark II
rebuild kits.

No we are UK.

Yeah that’s the one. Mark II.

So we need a rebuild kit is it?

Thanks


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[flash22 324]

I was wondering why you were using rock auto as they are american based

Not 100% on the fitment but a rebuild kit will be cheaper and easier to get, i will have another look

this is one reference to the kits

http://auto-kat.com/index.php?route=saleepc/general/parts&modification_id=6747&partnode_id=276

found 2 oe part numbers

04493-20070

04493-20010

 

[jackrmee 0]

I was wondering why you were using rock auto as they are american based
Not 100% on the fitment but a rebuild kit will be cheaper and easier to get, i will have another look
this is one reference to the kits
http://auto-kat.com/index.php?route=saleepc/general/parts&modification_id=6747&partnode_id=276
found 2 oe part numbers
04493-20070
04493-20010
 

Hi mate,
I’ve been having a chat with the mechanic and he said a rebuild kit will do for now, but really needs a full cylinder eventually.
Maybe I can find one better when this lockdown is over.

In the meantime, many thanks for your searching and digging on the matter

I’ll order a rebuild kit from UK, so it will hopefully be back by the weekend.

I can’t seem to get anything from those links you sent though. Maybe I’m doing something wrong.

ps. We got a few parts that were difficult to source in uk, from rockauto and have used it ever since, as they are reasonably priced and have never failed to have the part we need until now. Cut out a lot of searching and digging haha


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[jackrmee 0]

Just checking the 2 oem parts now...
04493-20010 seems like the one. It says mkII (RX22).
04493-20070 says RT104 and has different parts and seals included. 

How can I find the correct one?
Is it a case of the mechanic taking it apart and seeing what seals are involved?


 

[flash22 324]

That's what i cross-referenced the rx12 is a jdm model information is difficult to come by but i will take another look, you may have to send it off to get it rebuilt

 

master cylinder rx12 74-75 with level sender - 47207-22020

 

[jackrmee 0]

That's what i cross-referenced the rx12 is a jdm model information is difficult to come by but i will take another look, you may have to send it off to get it rebuilt
 
master cylinder rx12 74-75 with level sender - 47207-22020
 

Thinking about it, the rebuild kits are so cheap that I may as well order them both and flog the one that’s not needed


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[flash22 324]

i'm trying to find some spec's atm, Lazorlite seems to of made the rebuild kits way back when

[jackrmee 0]

i'm trying to find some spec's atm, Lazorlite seems to of made the rebuild kits way back when

Thanks so much for your efforts


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[flash22 324]

There seem to be 2 sizes of master cylinder 22mm and 27mm

im still finding references to the RT10/rt114 and MX10

https://toyota.7zap.com/en/eu/corona/261230/rt114-hd/2/4702/mc2741e/#47264

you could try https://brakeparts.co.uk/

[jackrmee 0]

Tried to enquire about this cylinder, but it’s not available.
http://www.2040-parts.com/toyota-old-brake-master-cylinder-new-oem-rx10-rx12-mx10-m-x12-10h-20h-i1078763/


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[jackrmee 0]

There seem to be 2 sizes of master cylinder 22mm and 27mm
 
im still finding references to the RT10/rt114 and MX10
 
https://toyota.7zap.com/en/eu/corona/261230/rt114-hd/2/4702/mc2741e/#47264
you could try https://brakeparts.co.uk/

Also sent an email to brakesparts.co.uk as they have no parts listed for the model on the website, but say they may be able to source them


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[jackrmee 0]

No joy with that website. They don’t stock any brake parts for mkII.


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[jackrmee 0]

On 6/3/2020 at 3:26 PM, flash22 said:

There seem to be 2 sizes of master cylinder 22mm and 27mm

im still finding references to the RT10/rt114 and MX10

https://toyota.7zap.com/en/eu/corona/261230/rt114-hd/2/4702/mc2741e/#47264

you could try https://brakeparts.co.uk/

Afternoon FLash,

Garage have got the cylinder off and say that the part we bought is wrong and the measurement is 23.5mm.
I'm totally lost now as can't find any that match that description.

[flash22 324]

That is the issue with odd cars parts can be a mare, i will have another look for you, but you may have to send it off to a specialist for a rebuild

[jackrmee 0]

2 minutes ago, flash22 said:

That is the issue with odd cars parts can be a mare, i will have another look for you, but you may have to send it off to a specialist for a rebuild

OK, thanks mate. 
Where would I find a specialist? I thought a classic car garage would be specialists. Or do you mean a dedicated TOyota classic car garage?
Thing is, the car is already at the garage and the cylinder is in bits I think

[flash22 324]

A brake specialist that does rebuilds

[jackrmee 0]

Just now, flash22 said:

A brake specialist that does rebuilds

Ah OK, got you! Cheers, I'll have a look now

[flash22 324]

do you know if it has a square flange (4 bolt) or an oval flange (2 bolt) that boilts to the booster ?