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How to disable mechanical governor on 1987 Mack

Discussion in 'Mack Forum' started by precaster, Jun 25, 2017.

Jun 25, 2017 #1

precaster Bobtail Member

1

1

Jun 25, 2017

0

My precast concrete delivery truck has been limited to 55 mph, it would be nice to go the speed limit.

precaster, Jun 25, 2017

precaster, Jun 25, 2017

#1

KB3MMX Thanks this.
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Jun 25, 2017 #2

baha Road Train Member

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Jul 25, 2013

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Follow the speedo cable and see if it leads to a box, you can dis connect it 1st to see if thats your gov.

baha, Jun 25, 2017

baha, Jun 25, 2017

#2

KB3MMX Thanks this.
Aug 1, 2018 #4

Brerran Bobtail Member

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Aug 1, 2018

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precaster said: ↑

My precast concrete delivery truck has been limited to 55 mph, it would be nice to go the speed limit.
Click to expand...

Did you ever find a way to remove your Mack's governor? I'm having the same issue with my CH612. It defuels at 1500 rpms and 55mph

Brerran, Aug 1, 2018

Brerran, Aug 1, 2018

#4

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