EGR Tube Identification

[freedom5]

I have an '87 2.9 EFI that has a cracked EGR tube. I checked with the local Ford Dealer and he said that part is no longer available. He did give me a schematic of the EGR System from his computer which shows the basic Ford Parts numbers. The Ford Part number of the tube on this simply lists 9D477. I found a site on line that has hundreds of EGR tubes but all of the Ford ones just show the Ford Emblem - not a picture of the actual tube. All have the 9D477 but with different prefixes in front and suffix letters at the end. I called and talked with a sales person who said they needed the entire number to correctly identify the part or cross reference it. Can anyone provide the correct part number? I don't want to order one and then have to return it. Our local Auto Parts stores do not carry this item.

freedom5

 

[CraigK]

If you are not able to locate and/or replace your EGR tube, you might try just eliminating it.

I did this on my '87 2.9 BII by cutting the copper EGR hose about 3" from the engine end, and sealing it by flattening the tube and folding it. I sealed the exhaust manifold end by screwing a pipe cap on to the manifold stub (force fit - not the same threads). The pipe cap was a standard iron plumbing pipe cap (I forget what size, but likely for 1/2" or 3/4" NPT), and I think I also used metal epoxy as well.

That was at least 10 years ago, and it's still running fine.

It would be ideal to get a cap with the same threads, but as I recall, the manifold end of the EGR tube on my engine was rusted and corroded, and prevented clean removal of the tube. (Does anyone know the thread size/type for the manifold end of the EGR tube???)

BTW - The engine runs just fine with no EGR. No replacement of the electronic control unit is required.

CraigK

 

[freedom5]

If you are not able to locate and/or replace your EGR tube, you might try just eliminating it.

I did this on my '87 2.9 BII by cutting the copper EGR hose about 3" from the engine end, and sealing it by flattening the tube and folding it. I sealed the exhaust manifold end by screwing a pipe cap on to the manifold stub (force fit - not the same threads). The pipe cap was a standard iron plumbing pipe cap (I forget what size, but likely for 1/2" or 3/4" NPT), and I think I also used metal epoxy as well.

That was at least 10 years ago, and it's still running fine.

It would be ideal to get a cap with the same threads, but as I recall, the manifold end of the EGR tube on my engine was rusted and corroded, and prevented clean removal of the tube. (Does anyone know the thread size/type for the manifold end of the EGR tube???)

BTW - The engine runs just fine with no EGR. No replacement of the electronic control unit is required.

CraigK

Thanks for the ideas. I am hoping to keep everything original but haven't been able to find a replacement tube as yet. I don't want to do "pick & pull" as I probably would get a bummer anyway. So far I have taken care of the immediate problem using redneck technology. I bought some exhaust patch, wrapped it around the split in the tube, then wrapped fiberglass cloth around that and coated the patch with JB Weld.

After sealing up the opening I am amazed how much more responsive the engine is. I don't know if it was sucking air through the crack or screwing up the egr sensor by not detecting the exhaust gases.

Anymore ideas and where I can purchase a replacement will be appreciated.

freedom5

 

[BRUTUS_T_HOG]

i would just cut the tube and slip a piece of high temp hose over it and secure with clamps... in fact i HAVE done that on a few fords and never had a come back.

that is IF the tube or fittings don't snap off when you loosen them. you can try to just cut them in place

 

[freedom5]

i would just cut the tube and slip a piece of high temp hose over it and secure with clamps... in fact i HAVE done that on a few fords and never had a come back.

that is IF the tube or fittings don't snap off when you loosen them. you can try to just cut them in place

Good idea. That certainly seems like a quick solution. I tried to get the lower fitting off and haven't been able to get it loose yet. I'll soak it good with Liq wrench and try again later. I probably will have to get a "crow Foot" so I can use an extension and breaker bar. The split is at the top end.The lower fitting seems to be 1- 1/4". The top fitting comes loose easy as I recently replaced the EGR valve.

freedom5

 

[BRUTUS_T_HOG]

ok.. i'll just warn you that the fittings on these EGR tubes can rust so badly that the threads rip off clean when you finally break it loose. been there a few times and had to pull the whole manifold to get the adapter off the manifold and replace it

 

[freedom5]

ok.. i'll just warn you that the fittings on these EGR tubes can rust so badly that the threads rip off clean when you finally break it loose. been there a few times and had to pull the whole manifold to get the adapter off the manifold and replace it

Good point! I have the split sealed now and unless it comes loose or breaks somewhere else - I'll just leave it. The lower fitting is hard to get to. Even if I decided to eliminate the EGR, I'd still have to seal off the outlet on the exhast manifold.