Catalytic Stud Question?
#1
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Catalytic Stud Question?
Hello,
While removing the Cat a few days ago, the 3 bolts (near the engine side) were stuck pretty good. So i used some "Liquid Wrench" as well as "PB Blaster" (could not find Kroil oil locally ). After letting the Cat sit for 2 nights and respraying the bolts periodically, the nuts were still stuck on. I now ventured on to a butane torch to heat up the nuts. This somewhat worked, as the nuts fell off...taking a piece of the bolt with them. Doh! At least i was able to get the Cat off.
Question is, does the 3 bolts that are on the Cat come off, or are the welded on? They are still stuck on. May I have some suggestions on how to remove the bolts. I recall 'drilling them out' is what others have used, is this true? What type of drill bit is necessary?
Thanks for everyone's time.
Edgardo
The three bolts I am referring to are in the attached pic. (pix courtesy of Swoope from another thread)
While removing the Cat a few days ago, the 3 bolts (near the engine side) were stuck pretty good. So i used some "Liquid Wrench" as well as "PB Blaster" (could not find Kroil oil locally ). After letting the Cat sit for 2 nights and respraying the bolts periodically, the nuts were still stuck on. I now ventured on to a butane torch to heat up the nuts. This somewhat worked, as the nuts fell off...taking a piece of the bolt with them. Doh! At least i was able to get the Cat off.
Question is, does the 3 bolts that are on the Cat come off, or are the welded on? They are still stuck on. May I have some suggestions on how to remove the bolts. I recall 'drilling them out' is what others have used, is this true? What type of drill bit is necessary?
Thanks for everyone's time.
Edgardo
The three bolts I am referring to are in the attached pic. (pix courtesy of Swoope from another thread)
#4
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Thanks all!
By the way my local Mazda dealership wants ~$6.50 per bolt! Does anyone suppose I can use 'normal' and not 'splined' type bolts for this application? (Automotive grade) So that when i need to remove the Cat again I don't run into this issue again.
Thanks!
Edgardo
By the way my local Mazda dealership wants ~$6.50 per bolt! Does anyone suppose I can use 'normal' and not 'splined' type bolts for this application? (Automotive grade) So that when i need to remove the Cat again I don't run into this issue again.
Thanks!
Edgardo
#5
the WANKEL made me do it
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yeah. just go to the hardware store a get 3 bolts, 3 nuts, 3 washers and 3 lock washers. It'll work fine. This is how I did it when one of those nuts sheared off with some of the thread. I haven't had any problems since
#6
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Thanks all!
Using my cousins 4lb hammer did the trick. Thanks for all the suggestions. Here are some pix:
Using my cousins 4lb hammer did the trick. Thanks for all the suggestions. Here are some pix:
Last edited by grinn253; 02-28-2007 at 01:37 AM.
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