7140 head leaking

I just got my "New" 7140 put back together. It was getting water in the oil. I think it was a liner o-ring. So I rebuilt it now I have an external leak at the head and block, left of the fuel filters and directly under the heater hose petcock. Had the head checked out said it was good. Any suggestions?

Thanks

What head gasket did you use

Also did you use the updated torque procedure?

I used the gasket that came in the reliance kit. No sprays on the gasket. I started in the center of the head went clockwise three times then final torque to 162 lbs. Also I did not check the bolts for stretching so....

Wrong torque procedure also I recommend using the Cummins head gasket.

Also you need to check head bolts for stretch.

I may be kind of late with this reply but here goes. So it looks like there is a break in the years as to proper bolt torque. It looks like pre 1991 use common step torque head bolts. Engines built in 1991 or later use torque to yield bolts. It is my understanding that torque to yeild bolts are recommended to be replaced each time. Now I have not worked on one of these engines and I don?t know for certain so I would recommend checking with a CaseIH dealer on that. If you engine is a 1990 or earlier I would pull everything down as far as you can but still leave it run-able the idea is to get the engine to operating temp then pull the valve cover and drain the coolant. In the reverse order of the correct torque sequence...see attached... loosen one bolt at a time and re-torque to 30 ft lbs. However, during the first part of the loosening sequence pull two bolts from opposite ends of the head inspect them for signs of stretching and measure the length with a dial caliper. Average the two lengths and that will give you a stretch spec. This spec may also be available from Cummins. So now continue loosening sequence until all have been pulled and retorqued to 30 ft lbs. Now here is where I?ll vary from the instructions attached. Now torque all the bolts in sequence to 70 ft lbs. Then continue through the recommended values as stated. When that is complete refill the coolant and again start the engine and get it up to operating temp. Then run through the torque sequence again at 162 ft lbs. Now pressure check the cooling system and see if you have stopped the leak. Looking closer at the attached info it looks as though using the torque to yeild bolts again is also acceptable. If you do that I would make darn you knew what the discard specs are for those bolts. Use this info under your own discretion, I?m just providing an out to pulling the head to replace the gasket. Just because it is very likely by not following a proper torque sequence you have distorted the gasket. If you feel like you absolutely cannot be with out this tractor when you need it pulling the head and replacing the gasket is probably the route I would recommended.
Torque sequence and info

That's the procedure I used. I have an early model. I ordered a gasket from my CIH dealer cheaper then the one from my Cummins and same number. New head bolts from A.M. I didn't like the o-rings in the gasket. I also picked up the spec from CIH. Looks like a may of not had the shorties as tight but.... Thanks for the ideas.