Amazon Rev Counter

Dibble · Mar 13th, 2011, 22:18

My 1966 Amazon was fitted with a Rev Counter with a Sun Tachograph control box. The control box is now rather knacked. Can anyone tell me anything about this system and where I might find a new/replacement control box.
Dibble

lukeball · Mar 22nd, 2011, 02:40

Normally the control box (transmitter) plays a crucial role. On some of the Sun control boxes, the number of cylinders could be changed. The transmitter does just what it says: it transmits the the pulses from the coil and #1 plug, in order to determine the RPMs.

The transmitter can usually be rebuilt, just find a shop that works on tachometers and other gauges. Usually there are special capacitors inside that go bad. These transmitters cannot be purchased new.

Is the Rev Counter (tachometer) that you have very nice? Do you have a picture? If not, then you can always buy a new Sun gauge that doesn't use a transmitter. It might cost the same as repairing the transmitter.

http://www.sunpro.com/

This is my favorite tachometer: http://www.sunpro.com/product_detail.php?pid=16513 or for a more retro look: http://www.sunpro.com/product_detail.php?pid=16512

The original Volvo tachometers can still be found as well.

Dibble · Mar 23rd, 2011, 22:50

Hi Lukeball, thanks for the information. I will look into this and see if I can get mine operational again.
Bob

Mar 22nd, 2011, 02:40	#2
lukeball Senior Member Last Online: Jan 10th, 2024 20:21 Join Date: Nov 2010 Location: Columbus, OH	Normally the control box (transmitter) plays a crucial role. On some of the Sun control boxes, the number of cylinders could be changed. The transmitter does just what it says: it transmits the the pulses from the coil and #1 plug, in order to determine the RPMs. The transmitter can usually be rebuilt, just find a shop that works on tachometers and other gauges. Usually there are special capacitors inside that go bad. These transmitters cannot be purchased new. Is the Rev Counter (tachometer) that you have very nice? Do you have a picture? If not, then you can always buy a new Sun gauge that doesn't use a transmitter. It might cost the same as repairing the transmitter. http://www.sunpro.com/ This is my favorite tachometer: http://www.sunpro.com/product_detail.php?pid=16513 or for a more retro look: http://www.sunpro.com/product_detail.php?pid=16512 The original Volvo tachometers can still be found as well. __________________ 1959 Volvo Amazon. Chassis #17048

Mar 13th, 2011, 22:18	#1
Dibble VOC Member Last Online: Yesterday 22:04 Join Date: Dec 2004 Location: Cupar, Fife	Amazon Rev Counter My 1966 Amazon was fitted with a Rev Counter with a Sun Tachograph control box. The control box is now rather knacked. Can anyone tell me anything about this system and where I might find a new/replacement control box. Dibble

Mar 23rd, 2011, 22:50	#3
Dibble VOC Member Last Online: Yesterday 22:04 Join Date: Dec 2004 Location: Cupar, Fife	Hi Lukeball, thanks for the information. I will look into this and see if I can get mine operational again. Bob

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