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Sill Repair - Yes You Can Diy ItSill Repair Wheel Arch Rust
Posted 03 August 2017 - 09:59 PM
Have finished my sill and arch repairs on my Mk 2.5 and want to encourage others wondering if they can do it themselves.
So, ummed and aghed (sic) as to wether to get stuck in or not. Am buying a late Mk3 or Mk4 in 18 months when the mortgage is paid off and had the choice of, would it get through next MOT with advisory again, bodge it it to pass MOT or proper job? Rose to the challenge and wanted the learning curve so ordered the panels from our favourite shop.
This is the state at the start:
Sized the repair panel on top of existing bodywork to get a maximum outline and drew that on:
First cut into the wing revealed this:
So as you can see my regularly unblocked drain holes did bugger all to prevent this. They don't drain between the wing and the middle strengthener. They don't drain between the middle strengthener and the inner sill. They only drain the cavity inboard of this where the hood compartment rubber drain tubes pass through. Decided that when reattaching new that I wouldn't seam seal the bottom edge to allow it to drain if needed. Already decided to use Dynax S50 cavity wax from Bilt Hamber. Spoke to Michael Bilthamber and his oppo in the lab Pete who were both very helpful. After emailing pics this was their recomendation.
All cleaned up:
How I didn't cause futher damage to the inner wing whose condition was as yet unknown I ground off the corner edge on the outside of the panel and snapped the old wing off but not the arch, if that makes sense. Then tin snipped the old arch off between the original spot welds and then dressed down.
The 4 holes above the cut were for self tappers to hold the new panel flat against and steady. Used a die grinder to cut through both old and new panels together to get an accurate joint.
Fitted a "joggler" to give me something behind to weld to rather than possibly blowing holes through two 20 gauge edges of a butt joint.:
Drilled holes above and clamped a 2" strip of repair panel at each "spot weld" with mole grips after dressing the back of each hole to hold the joggler flat for spot welding with MIG welder. Gently used water pump pliers to ease the joggler back into the cavity to prevent it from making the join proud.
In the door jamb after first cut to remove old section was left with this:
You can see where I have drilled out just the top of the spot welds. Above the spot welds used the die grinder to cut out the section of old wing to make way for that edge of the repair panel to sit in. Outline can be seen on 3rd pic, in the door jamb/reveal. Just continue the felt marker line down from the airbag sticker.
Panel in spot welded in:
and dressed off with flapper wheel:
And bodge/filller in:
Did do both sides! This side which had appeared to be in better nick wasn't as it was full of bodge. Needed a little plating with a strenghtener:
High Build Primer:
Then the dust settled:
Cavity wax going in:
Cavity wax leaking back out, also went in from the boot inside each wing behind the join:
Back home, back together, MOT passed and after flatting off, cutting compound, clay bar on the old paintwork, polish and wax she looks this:
And drop garage door, go on cruise up the Fjords and round the Med
I'd never tackled bodywork as deep as this. Took a lot longer than I thought it would, proceeded very carefully though I suppose. Pleased I didn't bodge it or wing it through next test. Can now either turn it into a track slag when I buy the new one or sell on knowing it's had a professional repair and is structurally sound.
Thanks for looking, hope it's inspired some people.
Posted 04 August 2017 - 06:40 AM
More people should have a crack at it, the sense of achievement when finished is great. I even managed to blend the paint in on mine. Got the nearside rear quarter to do in the winter where someone hasn't done such a good job.
Posted 04 August 2017 - 11:44 AM
Thanks for the positive comments guys.
Posted 04 August 2017 - 12:04 PM
Good stuff mate, looks like a top job. I'm interested in doing it on mine, but have no welding experience. Might try and find someone local who does MIG and pay them a bit of beer money to teach me the ropes before I attempt it myself.
'92 Eunos 1.6 - Triumph Daytona 600 ITBs - Speeduino Core4 ECU - AEM Wideband - Volk Racing Mesh 15x7 fronts - Work Equip 03 14x7 rears - Direnza Coilovers - Malian exhaust - Firefly overfenders - Sparco Sprint on side mounts
'92 Eunos 1.6 - Lifted on mk2 shocks - 205/65/15 Malatesta M35 on Viking alloys - Speeduino standalone ECU - Innovate MTX-L Plus wideband - MX5Parts catback - Silenced Decat - Cowl intake - Sparco Sprint bucket seat - Skidnation side mounts - Dished suede wheel
'99 1.6 import - Tein springs - Grooved discs - Decat - Sportex exhaust - Plenty of rust
'98 1.8 - MS-01R wheels - Toyo Proxes - Otto Racing Jap can exhaust - K&N intake - Nas dished suede wheel - Rust.
Posted 04 August 2017 - 02:11 PM
Took a while to get it "running" right. Turned out the shroud around the wire feed was loose so not getting the shrouding effect of the gas protecting the weld.
Once sorted you could hit the trigger to start the melt and have the confidence to hold the trigger to fill the melt/weld and got some lovely spots, left one of them not ground off I was that pleased.
Posted 04 August 2017 - 03:53 PM
Excellent, something I've never tried (welding) except back in my college days on steel pipes, not very good then.
Very satisfying indeed to see the finished car.
Posted 04 August 2017 - 08:08 PM
Posted 04 August 2017 - 08:14 PM
Posted 24 August 2017 - 12:31 PM
Posted 25 August 2017 - 06:19 AM
You have to take your time welding the rear quarter on, too much heat and you will warp the panel badly. Filling and shaping the panel will take ages to get right, then doing a half decent paint job will be a couple of days.
I would do it over a week, do rush or it won't turn out well.
Posted 26 August 2017 - 05:07 AM
Posted 26 August 2017 - 02:01 PM
Posted 20 November 2019 - 12:31 AM
anyway to get the pics back up in this thread? sorry for bumping an old post.
Posted 20 November 2019 - 08:08 AM
Posted 26 December 2020 - 01:03 PM
Posted 29 December 2020 - 12:58 PM
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