URGENT - EGR Cooler - Hose Diameters?

[rallywagon]

I have sprung a leak at my EGR cooler ('98 Jetta manual), and I have been searching the forums. But, I can not confirm the inner diameters of the 2 larger coolant lines and one smaller. I have to do a road-side repair today, and this info would be really helpful. I want to couple the larger hoses with a barb fitting and just plug the smaller hose for now? THANKS

 

[Mozambiquer]

I have sprung a leak at my EGR cooler ('98 Jetta manual), and I have been searching the forums. But, I can not confirm the inner diameters of the 2 larger coolant lines and one smaller. I have to do a road-side repair today, and this info would be really helpful. I want to couple the larger hoses with a barb fitting and just plug the smaller hose for now? THANKS

The small one is 8mm (5/16") and the big ones are 3/4"

 

[rallywagon]

THANKS!

 

[Mozambiquer]

THANKS!

No problem! I just happened to see your question and had a cooler sitting on my tool box...

 

[rallywagon]

I was just out looking at my car...I am not sure the EGR cooler is the source of my leak. It is a steady drip down the back of the engine, but I can't find the source, yet. Nothing else is back there, right? The hose connections are all dry...maybe the cooler is actually cracked? Thanks.

 

[turbodieseldyke]

Freeze plugs are back there too.

 

[rallywagon]

So, upon further inspection with the engine warmed up, I have a pin hole in on of the hoses under the injection pump. On order. The drips were spraying and trickling off of the back of the pan fooling me. Thanks for the input!