Downpipe Fastner Question
#1
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Thread Starter
Join Date: May 2011
Location: Gaithersburg, MD
Posts: 52
Total Cats: -2
Downpipe Fastner Question
My downpipe is currently connected to my turbine using (5) 20mm stainless (A2-70) bolts. I would like to replace them with ARP stainless 12 sided 25mm bolts in order to make installation easier and so that I have more threads engaged.
However, over time the receiving threads in the turbine housing have become slightly deformed such that I can only screw the ARP bolt in a little (1-2 threads), and the existing bolt only up to it's normal point of engagement (~10mm). I have chased the threads with a thread restorer, and they are not damaged. The bolts have identical threads, so no problems there.
Questions/Options:
1. Is the ARP stainless hardware appropriate for this application?
2. Since I'm not having any problems, should I just leave well enough alone and suck it up? (It's a real PITA getting the six sided bolt bolts tight with an open ended wrench)
3. Or, should I run a tap through the housing threads and install the ARP bolts?
4. Or, "You fool, there's a better solution!"
Thanks!
However, over time the receiving threads in the turbine housing have become slightly deformed such that I can only screw the ARP bolt in a little (1-2 threads), and the existing bolt only up to it's normal point of engagement (~10mm). I have chased the threads with a thread restorer, and they are not damaged. The bolts have identical threads, so no problems there.
Questions/Options:
1. Is the ARP stainless hardware appropriate for this application?
2. Since I'm not having any problems, should I just leave well enough alone and suck it up? (It's a real PITA getting the six sided bolt bolts tight with an open ended wrench)
3. Or, should I run a tap through the housing threads and install the ARP bolts?
4. Or, "You fool, there's a better solution!"
Thanks!
#3
Junior Member
Thread Starter
Join Date: May 2011
Location: Gaithersburg, MD
Posts: 52
Total Cats: -2
I know that some inco studs would be best, but that would make disassembly more cumbersome.
Thank you for the feedback.
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