DCT Filter Housing/Pan Bolts - Replace? Why
Thread Starter
Burning Brakes
Joined: Nov 2022
Posts: 1,053
Likes: 1,114
From: Western Mass
DCT Filter Housing/Pan Bolts - Replace? Why
I posted this within another thread but figured it's best to make it its own thread.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Race Director
Joined: Aug 2016
Posts: 12,760
Likes: 10,193
From: Garden Valley CA
I posted this within another thread but figured it's best to make it its own thread.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Race Director
Joined: Mar 2007
Posts: 11,360
Likes: 8,512
I posted this within another thread but figured it's best to make it its own thread.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Can someone explain why the DCT filter housing and pan bolts are remove and discard? It looks like they have thread lock on them. I can't imagine that they are torque to yield on something that isn't under any stress like a head bolt. If it's just the thread lock issue, cleaning the threads and adding some blue loctite seams pretty simple. I know the DCT filter comes with new bolts. But I'd prefer not to throw away all the pan bolts for something as simple as having to add some blue loctite.
Race Director
Joined: Mar 2007
Posts: 11,360
Likes: 8,512
Here is the thread about the filter housing bolt that snapped.
https://www.corvetteforum.com/forums...t-snapped.html
https://www.corvetteforum.com/forums...t-snapped.html
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
I saved my old housing bolts so they can be reused sometime in the future. You need to clean the housing threads before installing the new bolts. The best way to clean the threads is with the correct tap which is a weird size 5mm x 0.80. After cleaning the old thread locker out make sure you also clean the holes with something like brake cleaner so that they are clean and dry. You will also need an inch pound torque wrench to properly tighten the 4 bolts.
Race Director
Joined: Aug 2016
Posts: 12,760
Likes: 10,193
From: Garden Valley CA
Cutting taps are different from thread chasers. If I don't have a thread chaser I prefer to use a clean bolt instead of a cutting tap to clean the threads (unless there is something really wrong with the threads). I prefer to form the threads back into place vs removing material.
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
Cutting taps are different from thread chasers. If I don't have a thread chaser I prefer to use a clean bolt instead of a cutting tap to clean the threads (unless there is something really wrong with the threads). I prefer to form the threads back into place vs removing material.
Pro
Joined: Feb 2021
Posts: 690
Likes: 177
There are all different classes of taps that yield different fits. I would groove with a dremel cuttoff wheel and wire brush debur a used bolt before using a dulled tap. A tap of the wrong fit could have a larger pitch diameter and can act as a thread forming tap especially in a soft material. Increasing the thread dims is not a good idea. A thread chaser is the best option for cleaning out the old thread locker. There is also thread cleaning brushes. I believe McmasterCarr sells them.
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