How do I remove these pins

[BWDart]

Trying to clean up this old manifold want to remove these pins and plate. How do ya'll get them out and then back in so they stay?
Also this pot metal vac fitting broke off, tried heat and pb blaster to no avail, how do I get remainder out without damaging threads?

 

[dano]

The bottom rivets twist out. Vise Grip Pliers work well, then install them by tapping them back in with a hammer.

For the broken fitting you'll need a thread extractor to put in there to back it out. Keep soaking it in PB blaster. It takes time to soak in. Worst case you may need to drill and re-tap it.

 

[RustyRatRod]

I have always removed those and discarded them. It's not much protection from heat anyway but it is a place where oil will collect and cook causing sludge buildup under it. As mentioned, those are "twist rivets" that are just driven in to hold it on. If I was to reuse one, I would tap threads in the holes and use blue locktite on the threads.

 

[yellow rose]

I use a dull chisel and just tap under the head to get them out. Then I use red locktite when I put them back in.

 

[BWDart]

I have always removed those and discarded them. It's not much protection from heat anyway but it is a place where oil will collect and cook causing sludge buildup under it. As mentioned, those are "twist rivets" that are just driven in to hold it on. If I was to reuse one, I would tap threads in the holes and use blue locktite on the threads.

Ya I thought about leavin that pan off I have exhaust crossover blocked so shouldn't be alot of heat there

 

[MoparMike1974]

I agree, leave it off. You will probably find a buttload of sludge under it. Unless your media blasting the intake you could just leave it alone. If your blasting removal is a must because there will be all sorts of abrasives trapped in there.

 

[BWDart]

Any other suggestions on gettin that fitting out?

 

[72Dart6pack]

Hacksaw blade down the hole. Go slow. Make 2 cuts opposing side. And it will come out in 2 pieces.

 

[BWDart]

Hacksaw blade down the hole. Go slow. Make 2 cuts opposing side. And it will come out in 2 pieces.

Thanks I'll try that

 

[72Dart6pack]

4 cuts work better but it takes time. No rush. And your manifold has zero risk of being damaged

 

[BWDart]

Hacksaw blade down the hole. Go slow. Make 2 cuts opposing side. And it will come out in 2 pieces.

Thanks 72 Dart6pack that worked perfectly!!

 

[72Dart6pack]

Glad I could help. It's a old trick a lot of people forget.

 

[BWDart]

Glad I could help. It's a old trick a lot of people forget.

It had another fitting next to that one which was plastic? Torch made short work of it

 

[Mattax]

U type Drive Screw.
Avail from most industrial and metal working supply houses
U type drive screw at DuckDuckGo