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international 666

M

Moe B

New User
I just picked up a 73 International 666 with Perkins diesel 5 speed, 3900 hours for use as a boat launcher. Does anyone know if the torgue amplifier is effective for reverse gear. Seems to work great down hill in forward gears, have not tested yet in reverse. My boat ramp is faily steep and the boat weighs about 8,000 lbs, plan is to back down if possible. Any help or advice would be appreciated.
 
The IH 666 never had a Perkins as a factory engine. The TA works the same in all gears forward or reverse. It is in front of the transmission. I would make sure the tractor is weighted well before I would back down a boat ramp with a 8000 LBS boat behind it. I would not be worrying about the TA the brakes would be way higher on my worry list. LOL The brakes are not the best on a IH 666.
 
Thanks for the heads up! At the end of the ramp it flatens out to gravel and sand. I could turn around at that point then back into water, only need to push it out about 20 feet to unload the boat.
 
You maybe already know this but, DON'T use the TA when going down hill and let it freewheel. Quickest way I know of to tear out a TA.
 
Could you install a brake controller on the 666? You could then use the brakes on the trailer to help you keep it under control. You'd have to use the controller manually, of course.
 
Be servicing the brakes so they both are even, and uniform in stopping force with moderate pressure. Jim
 
Tears out the TA and you have no control over tractor speed going down hill - real quick way to find yourself upside down in a ditch at 40 MPH.


A 666 with some weights will handle your boat on a ramp better than any heavy duty pickup - refresh the brakes and DON'T let the brakes get wet.
 
(quoted from post at 06:47:50 07/14/15) Tears out the TA and you have no control over tractor speed going down hill - real quick way to find yourself upside down in a ditch at 40 MPH.


A 666 with some weights will handle your boat on a ramp better than any heavy duty pickup - refresh the brakes and DON'T let the brakes get wet.
Click to expand...

The older TA would allow it to freewheel but the 2nd gen TA did not. If it will not free wheel there is no way that a hill will tear it up. THe best way to check is to just get it one a hill with no load and start down the hill in TA low. If it starts to free wheel and gain speed use the brakes to slow down and stop then Put in TA high and don't use TA low going down hill, forward or reverse.

People did tear out TA's trying to use them as a brake going down hill with a load on behind.

Rick
 
Are front hitches available or would it need to be fabricated in the shop. I do like the idea of going head first. Thanks!
 
I'd like to see how they put a perkins in a 666. I have a perkins 318 that I need to put in something.
 
(quoted from post at 06:05:51 07/14/15) Could you install a brake controller on the 666? You could then use the brakes on the trailer to help you keep it under control. You'd have to use the controller manually, of course.
Click to expand...

If the trailer started life as a boat trailer it probably has hydraulic surge brakes.
 
(quoted from post at 09:53:20 07/15/15) I'd like to see how they put a perkins in a 666. I have a perkins 318 that I need to put in something.
Click to expand...

My error. You guys are right not a Perkins its a

Engine Detail:
International Harvester D312

We all know the phrase about Assume

Thanks to all
 
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