Replacing Manifold

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beefio
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Replacing Manifold

Postby beefio » Wed Jul 05, 2017 10:45 pm

I want to replace my original manifold with a Janspeed 421 that I've brought and I'd really appreciate any advice/tips on the best way to get the old one off and new one on?

Cheers

beefio
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Re: Replacing Manifold

Postby beefio » Sat Jul 08, 2017 7:09 am

Come on don't leave me hanging...

quick_spider
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Re: Replacing Manifold

Postby quick_spider » Sat Jul 08, 2017 8:50 am

Undo the bolts and put the new one on.

For the performance manifolds it's sometimes useful to lift the car quite high off the ground and undo the sump tie bar to get the clearance you need to negotiate the headers past the block.

beefio
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Re: Replacing Manifold

Postby beefio » Sat Jul 08, 2017 9:48 pm

Yeah I hope it's that easy!

I've read that it's really tight and others have losened the engine mounts. But you think the sump tie bar will do it.

Any other thoughts?

beefio
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Re: Replacing Manifold

Postby beefio » Sat Jul 08, 2017 10:15 pm

What/where is the sump 'tie bar'?

quick_spider
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Re: Replacing Manifold

Postby quick_spider » Sun Jul 09, 2017 10:50 am

It's the engine mount attached to the sump.

beefio
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Re: Replacing Manifold

Postby beefio » Sun Jul 09, 2017 11:09 am

Ah makes sense!

flyingbanana
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Re: Replacing Manifold

Postby flyingbanana » Mon Jul 10, 2017 3:17 pm

cjj did a how to on mg-rover.org iirc

beefio
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Re: Replacing Manifold

Postby beefio » Mon Jul 10, 2017 3:49 pm

Yeah I read that. He said it took him hours and he had to lever the engine to get enough space!

Hence me posting this tread...

beefio
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Re: Replacing Manifold

Postby beefio » Sat Aug 12, 2017 2:18 pm

Right I'm trying to change my manifold over and having trouble!

I even get the old one out!

Do I need to remove the down pipe for the manifold first? All the bolts are completely rusted sonwas trying without?

Do I need to remove the bracket that hold the heat shields so these are getting in the way?

Do I remove the o2 sensor first? I can't seem to get to it, what size spanner do I need?

HELP!!!

Mikeadman
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Re: Replacing Manifold

Postby Mikeadman » Sat Aug 12, 2017 6:21 pm

Done it yet?

beefio
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Re: Replacing Manifold

Postby beefio » Sat Aug 12, 2017 6:45 pm

No had to give up and waiting for help!

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talkingcars
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Re: Replacing Manifold

Postby talkingcars » Sat Aug 12, 2017 9:27 pm

In plug the O2 sensor, it's easier to remove it from the pipe when it's off the car.

Remove the heatshield brackets if they are in the way.
Cut the pipes at the bottom where they bend.
Undo the head to manifold bolts.
You should then be able to remove the down pipe up and out.
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beefio
Posts: 764
Joined: Wed Aug 13, 2014 7:10 pm
MGF Register Region: Hertfordshire
Model of Car: 2000 MGF VVC BRG
Location: Rickmansworth

Re: Replacing Manifold

Postby beefio » Sat Aug 12, 2017 9:54 pm

The bolts that secure the passenger side heat sheald also appears to fix the engine block to the gear box, so is it ok to remove these?

Also someone said to undo the sump tie bar to get clearance, where is it?

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talkingcars
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Re: Replacing Manifold

Postby talkingcars » Sun Aug 13, 2017 11:16 am

It's fine to undo one bell housing bolt,IIRC therd are another 14 holding it togeather.

The tie bar is obvious when you look under the engine.
Home to black MGZS180, blue MGZR160, green MGF VVC and MGF 1.8i, and red MG Maestro T16.

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beefio
Posts: 764
Joined: Wed Aug 13, 2014 7:10 pm
MGF Register Region: Hertfordshire
Model of Car: 2000 MGF VVC BRG
Location: Rickmansworth

Re: Replacing Manifold

Postby beefio » Sun Aug 13, 2017 11:27 am

Is the tie bar towards the rear with 2 bolts into the sump?


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