Exhaust Manifold... ISSUES

[HicktownGirl94]

My '94 F-250 has the worst manifold issues ever. It always leaks. And we have hadd this fixed multiple times. And it still keeps doin' it. It has a 460 in it and I have heard that this is a common problem with this engine but! My whole family drives Ford's with 460's in them and no one else has this problem.
Any ideas on why it keeps doin' this??

 

[1985 Ford F-150]

It could be either the doughnuts at the bottom of the manifolds or it could be the gaskets in between the heads and manifolds.

 

[O'Rattlecan]

God is telling you that your truck needs headers.

Ryan

 

[LEB Ben]

I got a 96 with a 460...had this problem once at about 200k. The manifold itself started to warp. So I planed the face. Then I put it back on, but didn't realize there wasn't supposed to be a gasket, and I put one on...so it still leaked. Pulled the gasket off...good as new til the engine blew 20k later.

 

[NeXtras]

i dont know if there anything like the 302, but i know the manifolds on the 302 are prone to warping, and the donut gasket falling out

 

[HicktownGirl94]

I have already replaced the headers. And it keeps doing it. That's the weird part is we have done everything to fix them. MULTIPLE TIMES. And it keeps doing it...

 

[O'Rattlecan]

Maybe it's the heads that have warped..? Is that possible?

Ryan

 

[HicktownGirl94]

Maybe..

What would that be from?

 

[89frankenford]

overheating most of the time

 

[Lost]

Do you have headers or stock manifold ? Have they been replaced or just new gaskets (Probably the case) . The y pipes r know to crack also .

Do you tow?

The 460 at work all truck low mileage but the stock manifolds crack /warp. All 6 truck of r's have been redone .

The only fix that seems to stay fixed is a set of HIgh quality headers or new oem manifolds.

 

[HicktownGirl94]

Actually; that makes sence.
We tow a lot.
Lots of hay and horses.
So i bet thats why...