Series 2a & 3 Brake Wheel cylinders, other uses

satro · Jan 21, 2008

This is a bit off topic. I am trying to locate some wheel cylinders to adapt to fit my 1937 Lancia Aprilia. The rear s2a & 3 seem to be 25.4mm (1") but I would like to know some other dimensions, if a member has an old one lying around could you please let me know:-
1 total length of the casting. Aprilia Lockheed ones are 79mm.
2 distance between the studs, center line, mine are 44mm.
3 center line of the bore to the flat face it mounts to the back plate, mine is about 23-24mm.

Many Thanks in advance for your time.
John

The Mad Hat Man · Jan 21, 2008

Grippa mite be able to help ya there.

steamcoaster · Jan 21, 2008

I have a heap of old ones lying about. I'll get the verniers out and have a measure.

satro · Jan 21, 2008

Thanks,

clivees · Jan 23, 2008

Just buy one they are cheep or find a landrover agent and ask him for a old one.
You could then try it for size.

steamcoaster · Jan 24, 2008

I found a wheel cylinder and verniers...

This is a bit off topic. I am trying to locate some wheel cylinders to adapt to fit my 1937 Lancia Aprilia. The rear s2a & 3 seem to be 25.4mm (1") but I would like to know some other dimensions, if a member has an old one lying around could you please let me know:-

1 total length of the casting. Aprilia Lockheed ones are 79mm. - 76.2mm
2 distance between the studs, center line, mine are 44mm. - 40.6mm
3 center line of the bore to the flat face it mounts to the back plate, mine is about 23-24mm. - 25mm

Quite close, but not close enough. I measured a Britpart unit. Box says its a front cyclinder, but it is a rear cylinder (has two pistons)

Hope this helps

satro · Jan 24, 2008

Many Thanks for your time, It has been a great help,
Regards, John

Series 2a & 3 Brake Wheel cylinders, other uses

satro

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The Mad Hat Man

Well-Known Member

steamcoaster

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satro

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clivees

Well-Known Member

steamcoaster

Active Member

satro

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