GEP 6.5 non turbo valley drain

[Myrtleman]

Good evening. My rig is a 2006 1097A2 non-turbo. Rainwater is collecting on the top of the intake manifold valley and not draining away. I’m able to verify that the valley hole is not clogged and im able to get a wire down in there. However, the exit hole appears to have a freeze plug in it. As far as i know this is the original motor that has not been rebuilt. Ive read that on some rebuilds, they will stick a freeze plug in that hole. Whats the reasoning behind that? Regardless of the source or cause of the plug, is it ok for me to drill out for drainage? Thanks for your help.

 

[Maxjeep1]

My M1165 that was reset by Milton had the valley drain plugged. I drove the plug out so valley could drain. I was advised that I don’t have the tube that runs behind the block and it’s a bad idea to let the valley drain against the block. Do some digging and see what you come up with

 

[Retiredwarhorses]

My M1165 that was reset by Milton had the valley drain plugged. I drove the plug out so valley could drain. I was advised that I don’t have the tube that runs behind the block and it’s a bad idea to let the valley drain against the block. Do some digging and see what you come up with

Unplugging the the hole is a bad idea if the tube is removed, as it is on the melton rebuilds, all that water will end up on the rear main seal…even with the drain working, you will have water in the valley, the water exits the front the motor at the low spot around the timing cover.
if you want no water to collect? Park the truck facing down your driveway if it’s sloped, or throw a tarp over the motor under the hood when parked long term.

 

[Retiredwarhorses]

As you can see, look how thin the tube is as it is flattened out so it doesn’t hit the flex plate…literally a small amount of sand or debris clogs the tube, it’s actually impossible to keep it clear under normal operating conditions.

 

[Godspeed131]

I agree with the above statements from RWH, the tube is a poor design. When I rebuilt mine I had removed the old rusted and disfigured tube and ordered a new one. When I received the new one, at one glance I realized that installing that tube back on and keeping it clean and flowing was futile to say the least so I threw the new tube in the parts bin and plugged the drain hole without a second thought.

 

[TOBASH]

Upon my return to California to work on my M 1165, I have decided to take sheet metal and attach it from the bar above the oil cooler all the way to the underside of the cab that supports the hood when it is closed. I will use aluminum or stainless steel, to avoid rust and corrosion. It is my hope that this will channel the water away from the top of the engine once and for all.

It would be a similar concept to the large plastic doodads that they put over the performance car motors and fuel injectors and carburetors to dress up the engine bay.

 

[Myrtleman]

Upon my return to California to work on my M 1165, I have decided to take sheet metal and attach it from the bar above the oil cooler all the way to the underside of the cab that supports the hood when it is closed. I will use aluminum or stainless steel, to avoid rust and corrosion. It is my hope that this will channel the water away from the top of the engine once and for all.

It would be a similar concept to the large plastic doodads that they put over the performance car motors and fuel injectors and carburetors to dress up the engine bay.

Tobash i would love to see a pic of this when complete. Sounds like a good idea.