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Old 6 Days Ago   #1
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Working under the car: your tips

Trying to get around all the obstacles here to finally get this done to the Panda.

I'd like to get the underneath completely coated in thick black Waxoyl. I've had a tin sitting for a year but every time I go to do it it either can't get the spray gun to work right or come across plastic parts underneath that surely due to their placement there's going to be untreated spots under them etc etc.


1. Working under the car.
We have one huge jack and some Axle stands. Is it any good to prop the car fully up, and even on four axle stands? or is this dangerous? Seems the only way to get good enough room under it to pay close attention.


2. Cleaning it.
How on earth am I going to clean the muck / oil / grit off the undercarriage? There must be fluids out there made for this, ones that work. And what sort of brushes / cloths / tools should I buy to do the job right and with minimal hassle.

3. Painting it on.
If I could magically get it clean enough, with enough clearance to work under it safely then can I just dab a paint brush into the Waxoyl and coat it on like there's no tomorrow? Is there anything to note here or to unbolt to make sure this is a good job. I was going to paint it up to the side sills of the car. Even it's it's noticeable from the side.

4. The Spray Applicator.
I let the tin sit in a bucket of boiling water but it still wouldn't go. Is it possible to spray Waxoyl on as a fine spray or am I doing it wrong? Seems handier to spray onto advanced shapes / small areas where a brush wouldn't fit.


My Panda is in remarkably good shape for it's age. It's still worth doing this I think. But every time I go near it I'm a lot more unprepared than I think and it's wasted time. Especially things like the spring cups etc.. such awkward shapes and positioning.

But some of you have assumably done this... what's your secret?
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Old 6 Days Ago   #2
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Re: Working under the car: your tips

Personally a summer job, not to say it canít be done in the winter but itís so much easier, and the wax oil will spray and creep better in the warm, the cars easier to dry too. If the axle stands are fit for purpose and correct loading then they will be fine, as they get taller they get proportionally bigger/stronger, but you could do with it being at least 75cm off the floor, hire shops are good method. This is what Iíve done, Iím sure there are many methods, identify a window of opportunity when the car is not needed for a few days, get it as high as possible with out its wheels and arch liners and any other undertrays etc. Jet wash it, using appropriate eye protection as the whole duration under the car will result in everything in you face. Get it immaculate always ask is that as clean as it could be, if not clean it more, you know if itís clean. Let it dry, bronze wire brush any loose/surface rust etc, personally at this stage repair anything if it needs it, from welding to clips, cables, pipes etc. If something has gone rusty enough to consider the use of kurust, genolite, POR 15 etc if it is solid metal I clean it back as far as possible with out using anything more aggressive than a wire wheel then I spray the wax oil over that, I have had long term success like this and years ago if I used rust treatments it always created a barrier that then went flakey a few years later. I spray the bottom, and brush the arches, I use a long lance
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Old 6 Days Ago   #3
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Re: Working under the car: your tips

For cavity sections and I have had vehicles that have been 25 years old when they received the treatment and they have never changed for years afterwards. I have also used tetroseal in a similar way with great success, I use masterguard in the cavities, it comes with a great lance. Every vehicle I have done like this I have ensured no welding will be require as once laced with a few mm of wax then itís a safe bet that it will catch lite very quickly when welding, fire watch definitely required. Also anything loose like original under seal etc needs to come off too, in essence no water traps anywhere, itís very messy too, so itís worth a couple of rolls of polythene, I have a couple of rolls 1.2m wise and 87m long, itís cheap and saves your drive etc.
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Old 6 Days Ago   #4
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Re: Working under the car: your tips

For very deep rusted parts where the metal has expanded don't bother trying to wire brush it off its just a waste of time,hit the part with a hammer until it falls off then you can wire brush and treat.
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Old 6 Days Ago   #5
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Re: Working under the car: your tips

Four axle stands are much better than two and a jack. Hydraulic jacks can drop, gently, or suddenly, so never work under a car on a jack only.

My advice, never work under any car unless someone else is nearby, if not with you, then someone who will check on you frequently.

To clean the underside, might work to jack up one side, so the car is tilted. Then pressure wash. Traffic film remover sprayed on first may well help. With the tilt, it should drain ok. Might then need to repeat with the opposite side raised.
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Old 5 Days Ago   #6
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Re: Working under the car: your tips

I would also get friendly with a local 4x4 group as I am positive they will have a outdoor high lift ramp somewhere that you could use for beer tokens. Also great advice on everything you have asked about above. Remember that most of the things that you want to do are hateful to do in the winter.
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Old 5 Days Ago   #7
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Re: Working under the car: your tips

Quote Originally Posted by Michael Dranfield View Post
For very deep rusted parts where the metal has expanded don't bother trying to wire brush it off its just a waste of time,hit the part with a hammer until it falls off then you can wire brush and treat.
Better still, cut all the rust away and work on clean metal only.
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Old 5 Days Ago   #8
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Re: Working under the car: your tips

Quote Originally Posted by portland_bill View Post
Four axle stands are much better than two and a jack. Hydraulic jacks can drop, gently, or suddenly, so never work under a car on a jack only.

My advice, never work under any car unless someone else is nearby, if not with you, then someone who will check on you frequently.

To clean the underside, might work to jack up one side, so the car is tilted. Then pressure wash. Traffic film remover sprayed on first may well help. With the tilt, it should drain ok. Might then need to repeat with the opposite side raised.
If like me and you have to work on your own keep your mobile phone next to you just in case anything does happen.Also in addition to using jack,axial stands stick anything you have under the car,I have a Tipo standing on axial stands with the rear beam removed a jack at the rear and an old windows tower computer underneath,never rely on just one thing.
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Old 5 Days Ago   #9
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Re: Working under the car: your tips

If you've removed wheels, lie them under the car. Stops you tripping on them, and will support the car well if it slips off the jack or stands.
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