Trouble removing oem exhaust manifold

[tombakers]

I'm in the process of removing the whole exhaust system to replace it with my new stainless dc sports system and am having a but of bother removing the manifold.

I can't remove one of the nuts that joins the 2-1 cat part to the 4-2 manifold part. I did Have it moving but had to use my leg with a long breaker bar and it just seemed to get tighter and tighter and now it's starting to round off.

Do I need to split the manifold in 2 to remove or will it come out as one?

Thanks

 

[dc5ian]

get a grinder on it, and cut the nut off.

 

[tombakers]

You can't get to it, too high up. Unless you can unbolt stuff around it, will look tomorrow.

So is that a no to taking the mnaifold of as one piece?

 

[Wingnuttzz]

Get a Dremel bud, £50 mines cost and I'd be very stuck without it.

If you are happy to drop the subframe you will get it out in one piece, I found I had to my subframe by a lot more than I suspected but I suspect that was because I'd didn't remove the manifold heat shields, so I'd advise removing those too.

 

[Mark_teg]

Just replied to your other thread, I'll delete it in a sec..


I removed mine in two parts, but didn't even attempt it as one so can't say for sure if it's possible.

Use a 6 pointed socket, this should prevent rounding the hexagonal nut.. You might have to hammer on a socket slightly smaller than intended.

 

[tombakers]

Can't get one of the bolts on the heat shield out either, rusted in.

I have a dremel so could look at that later but this nut is pretty beastly, a proper grinder would probably be best however I don't think there's space.

I don't remember any of my older Hondas having this much trouble just changing the manifold.

 

[kazmo]

cant see any reason it wont come off in one piece, it meet the b pipe at the same place so has to be very similar size to a one piece after market mani.... obviously you will have to drop down the ARB as well....

 

[tombakers]

Proper beastly bolt holding the manifold together I mean.

I get what your saying about the 6 pointed socket.. I did smash a 16mm by it wasn't 6 pointed but it didn't have the purchase, I will this next.

 

[tombakers]

Right got the fricking thing off, what a ball ache

Btw the manifold will come out through the bottom with the arb lowered and the engine mount removed but still requires a lot of jiggling about

Now having fun trying to get one of the bolts in the rear engine mount, doesn't line up very well, had enough. Will crack it tomorrow.

 

[Wingnuttzz]

Glad you got there, not fun is it.

You don't it on a ramp or driveway. I did mine on the driveway and it was hard getting the manifold out.

Might find jacking the engine up with a block of wood between the Jack and sump will bring it back into alignment to let you get the bolt in.

 

[tombakers]

Only just seen this this, yeah I did it on my back, if it was on a ramp it would of been much easier lol.