XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Is Exhaust Cement as good as Welding?

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Old Apr 18, 2016 | 05:25 PM
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Default Is Exhaust Cement as good as Welding?

This is a Job I've been putting off for ages.

It looks as if some Garage/Shop may have done a bodge up, on the Exhaust before I bought the Car (many years ago) but now its starting to blow a bit and I would like

to fix it, before her MOT which is due soon.

So what I was thinking of doing, was to cut out that pile of Junk and then join the Tubes back together using a Sleeve.

If I try and Mig it, then there is every chance it might burn through, so I was wondering if I could buy some stuff to Cement it together and then maybe clip it as well.

I am planning to get a new down pipe but I want to wait until my Car lift is Free, because otherwise it will be a difficult job to do without proper access.

Is there any Exhaust Cement that you can recommend, that sets 'Rock Hard' and would be as good as Welding.

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Old Apr 18, 2016 | 06:30 PM
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NO not as good as welding
 
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Old Apr 18, 2016 | 07:17 PM
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Cement is not ss good as welding. More of a temp fix. But if metal is blow out on welding then cement it until you can do permanent repair
 
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Old Apr 18, 2016 | 10:34 PM
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As a temp repair, OK.

If the sleeving is a tight fit and the "cement" is used as an assembly aid, could be better.

I used to use Holts Firegum, Made in UK I think???, back in the MK7 days, when money was none existant. Worked for me until the next time.

Nothing beats welding.
 
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Old Apr 19, 2016 | 01:12 AM
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Originally Posted by Grant Francis
As a temp repair, OK.

If the sleeving is a tight fit and the "cement" is used as an assembly aid, could be better.

I used to use Holts Firegum, Made in UK I think???, back in the MK7 days, when money was none existant. Worked for me until the next time.

Nothing beats welding.
Cheers Grant

Yes you guessed right, I was planning to use the Cement, as an assembly aid with a couple of Clips.

But I may have to have a rethink, as I don't want that Pipe dropping down and digging into the road, if it all falls apart.
 
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Old Apr 19, 2016 | 05:35 PM
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Invitation for a lot of smart *** answers, because no one "welds" a cage together with exhaust cement or "welds" up a bracket with JB weld.

lol at the fking hose clamp, my car had one on its exhaust when I bought it.

If you straight cut the pipes, you should be able to use a sleeve with some sealant to temporarily make this work until a new pipe comes in. I'm not sure I'd bother with a "cement" because it will be a pain later on.

Muffler cement is like an epoxy that dries hard and is usually used to fix holes. You just want a sealant. I've seen regular old high temp RTV used countless times, but there may be some better at the store.

Then again if you get a slotted sleeve to go over both end that you can use the proper clamps on, it should already be a tight enough fit that a little sealant will go a long way.
 
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Old Apr 19, 2016 | 06:37 PM
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Originally Posted by sidescrollin
Invitation for a lot of smart *** answers, because no one "welds" a cage together with exhaust cement or "welds" up a bracket with JB weld.

lol at the fking hose clamp, my car had one on its exhaust when I bought it.

If you straight cut the pipes, you should be able to use a sleeve with some sealant to temporarily make this work until a new pipe comes in. I'm not sure I'd bother with a "cement" because it will be a pain later on.

Muffler cement is like an epoxy that dries hard and is usually used to fix holes. You just want a sealant. I've seen regular old high temp RTV used countless times, but there may be some better at the store.

Then again if you get a slotted sleeve to go over both end that you can use the proper clamps on, it should already be a tight enough fit that a little sealant will go a long way.
Hi Sidescrollin

Slotted Sleeve, that's a great idea! with a bit of sealant and a couple of good Clamps.

At least as a temporary measure, until I get a new pipe.
 
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Old Apr 19, 2016 | 10:14 PM
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Here is an exhaust clamp sleeve.

Is Exhaust Cement as good as Welding?-image-1030121553.jpg
 
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Old Apr 20, 2016 | 06:29 AM
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Originally Posted by JTsmks
Here is an exhaust clamp sleeve.

Attachment 128490

OMG!

Cheers JT, That's just what I want!
 
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