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55 views

Is there anything wrong with rocker cover hole?

Engine oil filler cap screws into this hole in the rocker cover. I noticed the threads in the hole have three colours red which is the paint, silver which is the bare metal and also another type of ...
0
votes
1answer
31 views

OS MAX FS 70 Exhaust Thread Size

I was trying to figure out what kind of thread size the OS MAX FS 70 engine uses for its exhaust connector port. I am talking about the following (green circle) I could not find this in the manual, ...
0
votes
2answers
105 views

How to match a nut to this threaded stud (gaps in thread)

Context The attached photo is a stud in the roof of my vehicle, to which I wish to attach a roof rack. The roof rack should come with nuts to attach it, but they are missing. I need to find an ...
0
votes
1answer
110 views

LiFePO4 / screw thread came out / how to fix?

The minus terminal of one of my LiFePO4 batteries lost its screw thread today. I removed the screw and then i screwed it back in and found that it turns forever. Here you can see 4 of them. It seems ...
1
vote
1answer
56 views

Cut smaller threads on stud?

The on floor panel of my car, I have studs that stick up and are M8x1.25. On one of these studs the threads are mangled enough where my M8x1.25 die is essentially cutting the remaining threads. Is it ...
1
vote
2answers
86 views

How to fix the threads on a bolt?

I have a bolt and nut set which is used to remove suspension bushings. I put a lot of torque on the nut and the bolt is slightly bent. There is also a slight deformation on the threads, and the nut is ...
2
votes
1answer
130 views

Does Loctite 270 wick?

I have a bottle of Loctite 270, which looks like it's a green threadlocker. According to this post green Loctites can wick into the threads of pre-assembled components. An example of this is Loctite ...
7
votes
1answer
36k views

What is cross threading/a cross threaded wheel nut\stud?

What exactly is cross threading, is it a state the threads are in or is it something that people do which causes threads to become in a certain state or both? Please explain what cross threading is. ...
1
vote
2answers
135 views

Fix-A-Thred... Helicoils?

So I bought the m10x1.5 fix a thred kit from advance auto parts today to fix a stripped hole in the subframe that my upper control arm goes into. These bolts are crucial as they’re the only things ...
5
votes
2answers
14k views

Drilling a new hole and putting threads in it for a bolt to screw in

Hi everyone (noob alert)- I need to put a threaded bolt into a fresh new hole I have drilled into a piece of metal but how do I put in threads which match this particular bolt? Thanks
5
votes
1answer
55 views

Head studs' threads larger length: problematic issue?

As I'm getting ready to (finally!) re-assemble this old engine (Skoda Estelle/120 '70s, RWD, rear mounted engine), I needed/wanted to change a few studs, but basically all of the head studs are ...
2
votes
2answers
64 views

How to replace a broken knob in my old trailer

This knob in an old trailer of mind broke off. Is it possible to replace it? I'm curious if the aluminum "thread" that inserts into the knob has a name or standard. You can see what I mean in the ...
3
votes
0answers
49 views

Honda Accord Head Bolt

I repaired one of the holes for a head bolt on my 97 Honda Accord using a time sert insert. When I put the head back on I was only able to tighten it to 63 ft-lbs. I could tell it wasn't going to ...
6
votes
1answer
57 views

As all metric threads appear to have the same angle, is a metric thread file universal?

I'm doing the top mounts on a 1997 Mk3 Golf 1.6 GLI (101HP) at the moment. The car is equipped with Koni sport suspension and is using Mk2 spring caps. I'm replacing the Mk3 top mounts with Mk2 ...
5
votes
1answer
1k views

What types of thread-locking Loctite do I need to be aware of as an automotive DIY-er?

I am very confused when it comes to distinguishing between the different grades of red and blue Loctite. Are the different grades of Loctite intended for different torque ratings? Which Loctite(s) is/...