Gutting Precats , do you keep any screen etc?
06-15-2015, 02:14 PM
#1
Gutting Precats , do you keep any screen etc?
I am getting ready to gut the two precats on 5.5 gen, and i remember seeing this screen, the question is does anything need to be kept entact on the inside of the precats when gutting??? Or just have at it and try to not damage the inside walls too much?? i may do this tonight so a promtp reply would be great !
06-16-2015, 04:30 AM
#4
all done!
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
06-16-2015, 05:27 AM
#5
all done!
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
06-16-2015, 05:45 AM
#6
You need to install 02 nonfouler to the two secondary 02 sensor (one with white wire and one with red wire ) Precat near the radiator need a new steel O ring (connection between y pipe and precat). The connection between precat and exhaust manifold, does not need a gasket just follow the recommended torque. Precat near the firewall needs O ring on both ends.
i am taking to a shop with the newly wired sim, and having them throw in the "precats" (gutted) , i literally will have entire new exhaust from precat to muffler.
anyone looking for howto on sim install here
https://maxima.org/forums/5th-genera...tallation.html
06-16-2015, 09:27 AM
#8
06-16-2015, 10:33 AM
#10
04-21-2017, 06:29 PM
#13
Member
Join Date: Apr 2017
Location: El Paso TX
Posts: 157
My car has 85k, debating of which to do.
The Pain in the a** OBX headers or just gutting out the cats.
04-22-2017, 10:49 AM
#14
Senior Member
Join Date: Apr 2016
Location: Florida
Posts: 972
04-24-2017, 09:37 AM
#15
04-25-2017, 07:38 AM
#17
Old cats aren't worth much. Just a few bucks each if you sell them to a recycler. Sure there's platinum but it's not like it's filled with coins. It's a small amount and it has to be extracted.
05-21-2017, 04:35 PM
#18
all done!
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
rear is harder material, more dense, be more patient, 25-30 mins time, front (90 deg elbow) is easy 5 - 10 mins time.
16" spade bit for wood is what i used, and i recommend corded drill, because it would prolly eat at least 3-4 batteries on cordless drill
tools - drill, 16" long x 1" wide spade bit, and chisel, and hammer and vice grip or something for securing the pieces while doing the work,
05-21-2017, 07:15 PM
#19
It could be I'm just not patient enough, but my rear pre-cat is HARD. Spade bit wouldn't touch it so I resorted to my biggest drill bit. Hammer/chisel no use either. Now I've just got a bunch of holes (which don't go all the way through) It's a mess. Anybody have suggestions for gutting stubborn rear pre-cats?
#shamelessplug
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