Wow, that's quite a leak...

[Overland84]

Just got my '84 60 running after several months of sitting in my driveway. New rad, h20 pump, hoses, belts, etc later and I'm ready to roll. But the exhaust leak somewhere around the manifold has apparently gotten worse over the last three months, as it was visibly pouring exhaust throughout the engine bay, pulled up and out by the fan I suppose. Looking underneath at the EGR pipe at the rear of the manifold, I could see the source but am not sure if it is the actual pipe or not. There are several white streaks along the bottom of the manifold right next to where the EGR pipe bolts on, but due to the airflow from the fan I couldn't see exactly where the exhaust was leaking from. So I'm going to order the stainless EGR pipe regardless. My questions are:

1. Are the manifolds known to crack or leak at this junction around the EGR pipe, or is is more than likely the pipe and gasket being 24 years old and needing replaced. What am I looking at (# of bananas) by replacing the pipe here at home?

2. If it isn't the EGR pipe, what should be my next step?

3. Anything else you guys recommend doing after a lengthy spell of sitting in the driveway?

the diagram from SOR shows, at the rear of the manifold, where I see exhaust escaping. Its coming from around the junction of the peice labeled part # 20 (the piece that the EGR pipe connects to) where it fits into the main unit. Sorry for my poor description, I'm manifold illiterate.

Thanks guys
Thanks guys

 

[Butt Ugly Chuck]

The stainless SOR pipe was the cure for me. It has a much thicker flange than the stock pipe and I think that's its biggest advantage. The stock one is prone to warping and was the source for my leak. The job isn't too tough. Worst part I found was getting the nut loose where the tube connects to the EGR cooler (#27 below). PB Blaster, heat, extra leverage on the wrench, etc. Many mud threads I ran across on the subject said the replacement nut from SOR wouldn't fit so I reused my old one.

Make sure you replace the gasket (#1) with the OEM version, NOT the kevlar one.

Later,
Butt

 

[bigbrown]

i'd bet the leak is from the gasket/warped flange on the egr pipe. that's right where it hooks onto the manifold. i also bought the SOR one and there's no comparison. really stout. it's a tough place to work under there and crud falls in your face the whole time, but it's easy.

 

[JLH911]

i'd bet the leak is from the gasket/warped flange on the egr pipe. that's right where it hooks onto the manifold. i also bought the SOR one and there's no comparison. really stout. it's a tough place to work under there and crud falls in your face the whole time, but it's easy.

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I love the SOR EGR pipe...way better quality (rarity) than the Toyota one.