[harryc]

Hi I'm Harry from Sheffield. I've changed my brother's spark plugs and coils on his car this weekend. The coils were worn out and causing misfires. While I was under the car, I noticed that the exhaust fixings are extremely rusty. There isn't any signs of leaks, but I was thinking about changing them for new stainless steel nuts and bolts, so that they are easy to remove in future. Is it better to change them sooner rather than later? Or is it ok to wait until he needs a new exhaust? Bearing in mind that we have a lot of salt on the roads for the next few months.

 

[ayresyy]

Welcome! Stainless fixings do help a bit. I would suggest fitting them when you change the system, you will most likely have to cut a least some of the old ones off anyway, so if it's not leaking I would just have the bits ready.

 

[Zane]

Is there a liquid that you can put on the fixings to ease them off?

 

[Zane]

Hello again. I was wondering why no-one uses phosphor bronze nuts? They wouldn't seize or rust and I think they are quite hard-wearing. They are much harder than brass anyway. What do you think?