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npinks
Member Since: 31 Jan 2008
Location: Leeds
Posts: 1943
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best just to use the hose and a good scrubbing brush on the tire, with the help of some all purpose cleaner, get them nice and clean and seal them with a tire gel 
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 17th Aug 2008 4:54 pm |
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AndrewW
Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302
 
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Seriously, though, I do use the pressure washer up close on paintwork if I expect it to be robust, and I am not going to lift an edge. Directly vertical to the surface onto intact paint should not result in a surface break down on properly applied paint. No-one's D3 should be causing a problem as yet except if there is rust in relation to paint damage.
Under that circumstance, a pint technologist friend of mine (Freudian slip left in in the interests of accuracy) whose job was as a PAINT technologist  used to say that if the paint came off by simple mechanical means (washing, scrubbing, squirting water) then it should come off as otherwise it retains water against the deeper layers promoting those spiders of corrosion which fan out under the paint.
(Just spotted loads of similar replies  )
BLFarrar - I'm working from basic principles  and practical experience here, not specialist professional knowledge, but as I come from a long line of engineers and it is my hobby, I've soaked up a fair bit. As far as high pressure jets go, my guess would be there will be a lot of difference dependent on the shape of the chamber behind the nozzle, with swirls and vortices to keep the jet tight as a cutting force. If we really want to know the detail, my brother used to design pumps, pressure systems and nozzles for Mather & Platt - I pass him all my sums 
npinks - I DID use a sponge today. and tyre gel  2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods
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| 17th Aug 2008 4:59 pm |
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BLFarrar
Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222
  
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...thanks for that BREXIT - done properly.
Right now ...We need Government - not Politics
Save the Dipstick Flagbearer-keep it simple, less likely to fail campaign-agenda items:Starting Handles, Acetylene Lamps.
Founder: Dipsticks-R-Us Inc
D3 HSE-perfectly formed, passenger friendly...has real DIPSTICK
Jag XK-but sadly no DIPSTICK...HUGE design fault
FL2 has DIPSTICK..."real comfort in rear seats"
VW Golf wondermobile (?)..has real DIPSTICK
Morris Minor..original DIPSTICK technology..and a real KEY.
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| 17th Aug 2008 5:12 pm |
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jkp
Member Since: 17 Sep 2005
Location: Living among Bawbags
Posts: 4528
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Like everything, depends on how you use your tools 
I use a pressure washer on a fairly regular basis on everything from a mini, D3 to Porkers and Astons. That includes PWing the engine bays. Although when in the engine bay turn down the pressure to a mist spray...common sense stuff.
Yes you can damage components under the bonnet, but again using common sense and not being a blatant 'tool' about how you spray away you will be fine.
On paintwork, watch out for heavy stonechip areas, although on 'modern' paints even this will not be an issue.
The very early days of portable pressure washers approx. 20yrs ago when they started to appear in petrol stations had horrendous pressure ratings as these were derived form industrial washers that cleaned masonary and bus shelters. These would and did lift paint when used up close on edges and chipped areas. The ones you buy in Halfraud and B&Q for a hundred or so quid are no where near that pressure.
As mentioned common sense goes a long way on a lot of things nowadays.
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| 17th Aug 2008 5:19 pm |
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Ken
Member Since: 20 Feb 2006
Location: Here
Posts: 10865
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What he said 
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| 17th Aug 2008 5:50 pm |
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countrywide
Member Since: 16 Sep 2007
Location: UK
Posts: 6019
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BLFarrar wrote:I had delved into the data available on water jet cutting,
We have had some metalwork cut using flo jet cutting machines and the water pressure is upto 87,000 psi . But it won't cut metal or hard materials until an abrasive is added to the water.
You don't want to be standing too close when it backfires and the nozzle blocks, it goes everywhere.
Last edited by countrywide on 17th Aug 2008 8:22 pm. Edited 1 time in total
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| 17th Aug 2008 6:01 pm |
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AndrewW
Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302
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Don't think I'd want to be in the same county, when 87,000 psi backfires! Actually, it wouldn't be too bad - vide infra
 - me ole dad used to tell a tale of when he worked for Platt Brothers who made textile machinery including the steam engines, originally. When the boiler was completed, it had to be pressure tested. So they filled it absolutely bubble-free with water, and waited for the "Guv'ment Man". He came with a little briefcase. He opened the briefcase and took out a little pump, maybe 12" tall. And using that he could generate boiler operating pressure +100% in a few strokes, because the water was incompressible. If the boiler gave way under test, there would be a "plip!" and a trickle of water somewhere.
BUT - if they'd pressure-tested it with AIR, it would have taken a huge compressor a week to fill it, with millions of joules (newton-metres) of work done. When it blew, the stored energy would be enough to blow the town off the map 2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods
Last edited by AndrewW on 18th Aug 2008 11:12 am. Edited 1 time in total
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| 17th Aug 2008 6:57 pm |
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NJF
Member Since: 05 Oct 2007
Location: Gone
Posts: 2466
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Too much talk here about getting the D3 clean. Not enough about getting it dirty.
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| 17th Aug 2008 7:00 pm |
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AndrewS
Tarquin of the Desert
Member Since: 06 May 2005
Location: Y...... because I can
Posts: 10438
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FFS I don't believe that this thread has made 3 pages. As Iain says just one word... Darwin
 I have used a high pressure Karcher commercial with a vibrating head (HD 5/12 CX Plus dirt blaster)
at point blank and the paint survived. So yes 18" away with a toy town washer will be OK
However if you wash your car I am not responsible for the paint falling off In the Beginning there was nothing, which exploded.
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| 17th Aug 2008 10:53 pm |
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AndrewW
Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302
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But please sir! this has become a jet technology thread.
Despite the biological implications of your vibrating head , we were enjoying a technical discussion.
Then we need to go and get all muddy again to see if we were right.
Please, sir?
PS Darwin is extinct, signed Dinosaur. 2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods
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| 17th Aug 2008 11:12 pm |
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NoDo$h
Member Since: 02 May 2006
Location: Finding new and exciting ways to milk badgers.
Posts: 19689
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Law of unintended consequences:
I used the jetwash on my D3 today and and my daughter's chicken died as a result.
Had I not been merrily spraying away I might have noticed the commotion when some daft  's retriever got into my garden and merrily ripped my daughter's pet chicken, Ella, to pieces as my daughter screamed for me to help. Soft mouth? Not this retriever.
I "had words" with the owner of the dog when we found them in the next street calling for their untrained mutt. When the police asked if I would be able to identify the dog again I said "probably, but I'm damn sure it will remember me" It was lucky I didn't f ing shoot it.
I know it's not considered "kind" to say no these days, but no. Just no, ok? And if it's not ok, still no.
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| 17th Aug 2008 11:20 pm |
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npinks
Member Since: 31 Jan 2008
Location: Leeds
Posts: 1943
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Hows your daughter?, seeing something like that wouldn't be nice.
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| 17th Aug 2008 11:23 pm |
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simon
Member Since: 11 Jan 2005
Location: Shropshire
Posts: 18296
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NJF wrote:Too much talk here about getting the D3 clean. Not enough about getting it dirty.
Last I cleaned mine was months ago. Will let the dealer do it in two weeks when it get serviced.
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| 17th Aug 2008 11:28 pm |
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NoDo$h
Member Since: 02 May 2006
Location: Finding new and exciting ways to milk badgers.
Posts: 19689
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npinks wrote:
Hows your daughter?, seeing something like that wouldn't be nice.
Pretty upset. She loves dogs of all shapes and sizes but she was going mental at this one. We've explained it wasn't the dog's fault, that the owners are responsible and she seems to understand. I know it's not considered "kind" to say no these days, but no. Just no, ok? And if it's not ok, still no.
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| 17th Aug 2008 11:37 pm |
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NJF
Member Since: 05 Oct 2007
Location: Gone
Posts: 2466
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simon wrote:Last I cleaned mine was months ago. Will let the dealer do it in two weeks when it get serviced.
The dealer here would not be so careless as to remove the patina you had so carefully built up.
Nodo$h wrote:I used the jetwash on my D3 today and and my daughter's chicken died as a result.
Sorry to hear it ND.
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| 17th Aug 2008 11:42 pm |
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