Rusted Bolt on Exhaust Manifold

Beta Ray Bill

Hi Guys

I'm trying to change the exhaust manifold on my car. Problem is the bolt that is in the most awkward place possible is really rusted and ringed.

I really need to get this off. any mechanics here know what to do?
I cannot:
break it off
saw it off
hammer an 11mm on the 12mm nut
get a vice grips around it
or heat it

as there is not enough room.

Ive been told to get bolt remover sockets. anyone know where I can get these? I tried halfords... no joy.

Cheers
Graham

craichoe

grahambo wrote: »

Hi Guys

I'm trying to change the exhaust manifold on my car. Problem is the bolt that is in the most awkward place possible is really rusted and ringed.

I really need to get this off. any mechanics here know what to do?
I cannot:
break it off
saw it off
hammer an 11mm on the 12mm nut
get a vice grips around it
or heat it

as there is not enough room.

Ive been told to get bolt remover sockets. anyone know where I can get these? I tried halfords... no joy.

Cheers
Graham

Weld on a bolt and turn that instead.

Ferris

I would doubt that you have room to weld a nut on.

I've seen guys hammer a smaller socket onto the head and get them off that way. Problem is that you might break the bolt head off.

Either way try not to twist the bolt as if you break it you'll have to take the cylinder head off and drill it out.

I think you should get a mechanic to do it though as they already have all these tools and they're more used to jobs like this. It wouldn't even take them long to do.

ballinloughan

If you can 'soak' the nut in old brake fluid it can help loosen the nut ..

Henry Ford III

Use plenty of penetrating fluid. Wait. Get it nice and hot. Run the engine for 15 mins.

It should free off.

Beta Ray Bill

The Nut its self has had half a can of WD 40 spayed on it.

I think this is what I need

http://www.irwin.com/irwin/consumer/jhtml/detail.jhtml?prodId=IrwinProd100518

I dunno anywhere in dublin that sells these types of tools though

Tropheus

You could try McQuillans Tools in Blanchardstown SC. They have a great selection of gear and may stock them or suggest another solution. They're beside Next in the Westend part.

Beta Ray Bill

ksimpson wrote: »

You could try McQuillans Tools in Blanchardstown SC. They have a great selection of gear and may stock them or suggest another solution. They're beside Next in the Westend part.

tried, they don't have em

JoeySully

can you get an angle grinder in there ?? or is it difficult to reach? if you can get the angle grinder to the bolt and then drill whats left of the bolt and retapp it

martinr5232

Are you using six or twelve sided sockets.

Henry Ford III

Give it a sharp tap. May loosen build up of rust?

It must be hot btw. As hot as poss.

Beta Ray Bill

JoeySully wrote: »

can you get an angle grinder in there ?? or is it difficult to reach? if you can get the angle grinder to the bolt and then drill whats left of the bolt and retapp it

No Chance LOL

martinr5232 wrote: »

Are you using six or twelve sided sockets.

12, But I'm after sourcing a set of bolt extractors. please god they will work!!!!!!

Henry Ford III wrote: »

Give it a sharp tap. May loosen build up of rust?

It must be hot btw. As hot as poss.

The Car is an Evo 5 dude. Highly stressed engine. you wouldn't believe how hot it gets. I wouldn't be able to get my hand down in the gap with out burning the skin off myself.... I'm not that desperate... YET

using an open flame to heat is is also not an option as the whole area is cover in WD40 (highly flammable)

martinr5232

A six sided socket should sort it out be a lot cheaper than bolt extractors.

Beta Ray Bill

Might try and get my hands on one also

DublinDilbert

Have you actually managed to get the correct size socket on to it? or does it keep slipping off?

I would suggest dressing/cleaning up the 6 sides of the bolt with a small file, then just putting the correct size socket on it. As others have said the six sided sockets with the corners drilled out are quite good as they grip the 6 flats of the bolt.

cormac_byrne

grahambo wrote: »

tried, they don't have em

Yes they do, along the right hand wall, next to the sockets and vice grips.

I've got a similar prob and been in there several times this week.

Captain Slow IRL

Get it to a garage with an oxy-acetylene torch, it'll be off in 10 minutes - you're gonna end up shearing it off if you're not careful, and that will break your heart!

Beta Ray Bill

Got it off at last



New one will go on tomorrow



....

....

Never again

Max_Damage

^ Nice, what's the car?

Beta Ray Bill

Evo 5

10-10-20

Were they the shoes you were wearing while servicing the car? No wonder you couldn't get a proper grip...!

Beta Ray Bill

Those are animal loffers

DublinDilbert

How did you get it off in the end?