82 rude 140 to a 77 140

[89retta]

Hi there i blew a piston in my 82.I have purchased a 77 140.I was wondering if i am able to swap all electronics from 82 140 to the 77.Thanks for any advice

 

[89retta]

Re: 82 rude 140 to a 77 140

Any advice from someone

 

[emdsapmgr]

Re: 82 rude 140 to a 77 140

The 82 timer base and stator should fit the 77. You would have to swap the main engine harness also, so everything plugs in correctly. You will find that the 77 has one power pack mounted on a bracket. The 82 has two, mounted to the side of the engine. Likely the 77 block will not have the dual power pack mount holes, and those packs need to be solidly grounded. The 82 has a voltage regulator, which the 77 does not have. To make sure everything works out ok, you probably should re-time the engine at max spark advance-done at 5000 rpm, under load. Both #1 and #2 cyls.

 

[89retta]

Re: 82 rude 140 to a 77 140

Thanks for your answer.I was going to swap everything.

 

[emdsapmgr]

Re: 82 rude 140 to a 77 140

The most significant difference is in the trim system. The 77 uses a 3 wire motor, the 82 uses a 2 wire motor. That changes the wiring system. The 3 wire system uses a single solenoid, the 2 wire system uses a pair of the newer trim relays.

 

[89retta]

Re: 82 rude 140 to a 77 140

The tilt/trim look the same on both.When i pulled the motor off i just removed the tilt tube and left the bracket in place.Both engines are bubblebacks.

 

[emdsapmgr]

Re: 82 rude 140 to a 77 140

The trim units look identical. Check the number of wires on the motor. The number of wires on the motor will determine which trim control box you will need to use.