I removed mine, welded up the spot weld holes and repaired all the rust then converted it to bolt on using  rivnuts (12 i think) and a firm foam gasket to hopefully stop leaks.
 
I did have a fibreglass bubble but found it rubbish so repaired the original one instead.

will be doing the same thing as jaycess..panel bonded on

Another thought or question,
 
who is the company in Melbourne selling the section panel under the bubble that houses the fan blower ?
I have seen them here on this site but can't find it,
not sure if they sell lotus twin cam stuff too.
Jim

Hey guys, doing this as well, any chances of some photo's as would like to see who's used what, how many fixings and how you laid them out, thanks.

Twin Cam Services 41 McCulloch Ave Seaford VIC 3198. Tel: 61 3 9786 4711. Fax: 61 3 9786 8263
 
They're the people selling the section for the bottom of the heater bowl.

You got a picture??

nimr0d17

I don't know how bad the damage is but I do know there is water coming in.

Looking into the bubble from the top or bottom I can't spot any rust. (A few dried leaves though)

Mine leaked with zero rust. It was due to cracking of the original ( I presume) sealant around the cylindrical water deflector.
 
Cheers

fordsy

Twin Cam Services 41 McCulloch Ave Seaford VIC 3198. Tel: 61 3 9786 4711. Fax: 61 3 9786 8263

They're the people selling the section for the bottom of the heater bowl.

Just reading back through some old posts regarding heater bubbles, and was interested in this.
 
Is the panel spoken about above the same as the one smcka does?.
 
http://www.smckaperformance.com.au/smcka/component/virtuemart/414/27/body-panels/escort-mark-2/escort-heater-bubble-lower-repair-section-detail?Itemid=0
 
Dave

I was planning to use riv-nuts or nut-serts or whatever they are called until the panel beater I spoke with said it is better to bond it permanently as it provides structural strength (which definitely wouldn't go astray in a car as flexible as an Escort).  When I said I was concerned about keeping it clean in there to prevent the rust returning he just said to use POR or KBS on the inside, and hose it out regularly.

Flighter

I was planning to use riv-nuts or nut-serts or whatever they are called until the panel beater I spoke with said it is better to bond it permanently as it provides structural strength (which definitely wouldn't go astray in a car as flexible as an Escort).  When I said I was concerned about keeping it clean in there to prevent the rust returning he just said to use POR or KBS on the inside, and hose it out regularly.

Whats POR or KBS? :)
 
Also - does anyone have any pointers to getting a plenum bowl off, thats still in really good condition?. Has anyone done this before?.
 
Oddly enough, my plenum bubble itself is in perfect condition, but underneath it is rusted through into the car so i need to remove it, put a patch in, and then reattach it.
 
Anyone got any pointers / photos?.
 
Dave