1953 AC ACE 2.0L(AC)
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  • The build
    • AC 2L Donor Car
    • AC Ace WHEELS & Spinners
    • AC Ace Chassis Build UP
    • AC 2 Litre Engine
    • Ac Ace Gearbox
    • AC Starting Handle
    • AC Ace Steering Wheel
    • AC Ace Carburettors
    • AC Ace Instruments
    • AC Ace Hawk Body
    • AC Ace Pedal Linkage
    • AC Distributor
  • The Build 2
    • AC ACE Engine Bay
    • AC ACE Suspension
    • AC ACE Dynamo
    • AC ACE Starter Motor
    • AC ACE Cooling Fan
    • AC ACE Overriders
    • AC ACE BADGES
    • AC ACE Fuel filler Cap
    • AC ACE ALFIN Drums
    • AC ACE ACCESSORIES
    • AC ACE EXHAUST & MANIFOLD
    • AC ACE HORNS
  • The Build 3
    • AC ACE Seat Belts
    • AC ACE Dashboard
    • Dummy Leaf Spring
    • AC ACE Slave Bracket
    • AC ACE Radiator
    • AC ACE RPM Drive
    • AC ACE Fuel Tank
    • AC ACE Grease Gun
    • AC ACE CHASSIS PLATE
  • The Build 4
    • AC ACE Steering column
    • AC ACE SVA PARTS
    • AC ACE Wiper Motor
    • AC ACE Electric items
    • AC ACE Fuel Filter - Zenith
    • AC ACE Windscreen
    • AC ACE Grille
    • MGB REAR AXEL
  • Resources
    • Video Diary
    • Project Costs
    • AC Build Time Calculator
    • Hawk Cars
    • AC Hawk Projects of others
    • AC ACE REPLICAS (NOT HAWK)
    • AC Ace Reference Cars
    • AC ACE Chassis AE 01
    • AC Ace Colour
    • Ac Ace Interiors
    • Original close up details
    • AC ACE PARTS SHARING
    • John Tojeiro designer of the AC ACE
    • AC ACE People
    • DVLA Registration
  • Resources 2
    • AC ACE TECHNICAL INFORMATION
    • Our AC ACE In the Press
    • AC 2 Litre Barchetta
    • AC ACE Tojerio Prototype
    • AC Ace Brochures
    • AC Ace Advertising
    • AC HISTORY
    • Photo Shoots
    • AC ACE Chassis Dolly & Tool Trolly
    • Aluminium Under Bonnet
  • Contact
  • AC ACE Parts for sale
  • Home
  • The build
    • AC 2L Donor Car
    • AC Ace WHEELS & Spinners
    • AC Ace Chassis Build UP
    • AC 2 Litre Engine
    • Ac Ace Gearbox
    • AC Starting Handle
    • AC Ace Steering Wheel
    • AC Ace Carburettors
    • AC Ace Instruments
    • AC Ace Hawk Body
    • AC Ace Pedal Linkage
    • AC Distributor
  • The Build 2
    • AC ACE Engine Bay
    • AC ACE Suspension
    • AC ACE Dynamo
    • AC ACE Starter Motor
    • AC ACE Cooling Fan
    • AC ACE Overriders
    • AC ACE BADGES
    • AC ACE Fuel filler Cap
    • AC ACE ALFIN Drums
    • AC ACE ACCESSORIES
    • AC ACE EXHAUST & MANIFOLD
    • AC ACE HORNS
  • The Build 3
    • AC ACE Seat Belts
    • AC ACE Dashboard
    • Dummy Leaf Spring
    • AC ACE Slave Bracket
    • AC ACE Radiator
    • AC ACE RPM Drive
    • AC ACE Fuel Tank
    • AC ACE Grease Gun
    • AC ACE CHASSIS PLATE
  • The Build 4
    • AC ACE Steering column
    • AC ACE SVA PARTS
    • AC ACE Wiper Motor
    • AC ACE Electric items
    • AC ACE Fuel Filter - Zenith
    • AC ACE Windscreen
    • AC ACE Grille
    • MGB REAR AXEL
  • Resources
    • Video Diary
    • Project Costs
    • AC Build Time Calculator
    • Hawk Cars
    • AC Hawk Projects of others
    • AC ACE REPLICAS (NOT HAWK)
    • AC Ace Reference Cars
    • AC ACE Chassis AE 01
    • AC Ace Colour
    • Ac Ace Interiors
    • Original close up details
    • AC ACE PARTS SHARING
    • John Tojeiro designer of the AC ACE
    • AC ACE People
    • DVLA Registration
  • Resources 2
    • AC ACE TECHNICAL INFORMATION
    • Our AC ACE In the Press
    • AC 2 Litre Barchetta
    • AC ACE Tojerio Prototype
    • AC Ace Brochures
    • AC Ace Advertising
    • AC HISTORY
    • Photo Shoots
    • AC ACE Chassis Dolly & Tool Trolly
    • Aluminium Under Bonnet
  • Contact
  • AC ACE Parts for sale
1953 AC ACE 2.0L(AC)

AC ACE RPM Drive

The AC 2 litre car that donated our AC Works engine was not fitted with an RPM drive like the later AC ACE. As such we are on a mission to resolve this. We have located a drive thanks to Robin Woolmer but due to the rarity they are not cheap coming in at £291 each including postage. At the time of writing this (August 2017) Robin only has a couple left. The pictures below show our engine and you can clearly see the plate where the take-off goes. Next to it is a picture of the drive. Many thanks to Will Mahany for supplying those images.
Picture

The AC Angle Drive supplied by Robin Woolmer

Picture

Our Fabricated RPM drive threaded plates

Here are the threaded plates we made to take the RPM drive. They are a phosphor bronze. Note in the pictures the drive was offered up to res thread and is on the wrong side of the plate. The alloy plate in the pictures below is the cover plate that was on our 2 litre engine. We used this as the template. If you look at the alloy plate you could technically lathe it out and thread it. However, the phosphor bronze makes a better job of it.

Could this be the part?

The angle drive for the AC ACE is a tough part to find. However it looks like the drive and bracket could have been fitted to 1940s/50s motorcycles as a speedo drive. It appears to have a round drive and not the square drive but this could machined. I am getting the dimensions to see if it will fit the AC engine. If so, it will give restorers another source to find one.
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VINTAGE SMITHS CHRONOMETRIC ANGLE SPEEDO DRIVE BSA AJS PANTHER NORTON TRIUMPH
On close inspection the angle drive looks correct but the plate is a different size. It has to be the right size to locate in the engine block. So you could get away with altering the drive a tad. By my reckoning the plate is one centimetre too big and the bolt holes are slightly located in the wrong place.

Driveshaft for the square drive of an AC taco drive

The horizontal drive shaft from the crankshaft gear to the distributor spindle, located at the base of the distributor, (on engines with a tacho drive) has a female square socket to take a square spindle to the angle drive. Rod Briggs has some of the shafts with the socket at £88.88 each. Here's mine below for reference. You will need to make this conversion as the AC litre engine was not set u to take a rev counter.

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