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norco98
New Member
- Joined
- Apr 18, 2008
- Messages
- 3
- Reaction score
- 0
- Points
- 0
- Location
- Terrace/Vancouver
- Vehicle Year
- 1988
- Make / Model
- Ford
- Engine Size
- 2.9L
- Transmission
- Manual
Hello There,
This is my first post here, but I have learned A TON from the site in general, so thanks alot to all of you posting technical info.
My question is simple: Have any of you modified the 3-bolt flange connecting the catalytic convertor to the forward exhaust pipes?
The reason I would like to know is because:
1. I have done a vaccum gauge check and there is significant back pressure. While I have rebuilt the engine last summer, I suspect the previous owner was damaging the cat by running rich or something along those lines. I can't take the cat off to inspect it visually because the bolts are (obviously) entirely corroded.
2. I plan on grinding the old cat off and replacing it with a less constrictive universal cat. (The direct fits are too expensive). The universal cats are sold with round inlets.
Any ideas (or a part number!) would be greatly appreciated.
Thanks again,
Jon
This is my first post here, but I have learned A TON from the site in general, so thanks alot to all of you posting technical info.
My question is simple: Have any of you modified the 3-bolt flange connecting the catalytic convertor to the forward exhaust pipes?
The reason I would like to know is because:
1. I have done a vaccum gauge check and there is significant back pressure. While I have rebuilt the engine last summer, I suspect the previous owner was damaging the cat by running rich or something along those lines. I can't take the cat off to inspect it visually because the bolts are (obviously) entirely corroded.
2. I plan on grinding the old cat off and replacing it with a less constrictive universal cat. (The direct fits are too expensive). The universal cats are sold with round inlets.
Any ideas (or a part number!) would be greatly appreciated.
Thanks again,
Jon
