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Seasoned Member
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Discussion Starter #1
Recently brought an r33 gtr fresh inport, first thing im doing is cam belt and oil change and next on the list is getting it undersealed.

Now i have never had a car undersealed before, would you advise taking it to any kind of jap / skyline specialist to get mine done or can i take it to anywhere (a decent general garage)

Is there anything special that has to be done when undersealing a skyline?

How much can i expect to pay for it to be done?
 

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Belgium/Netherlands Area Rep
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just take it to a decent garage, undersealing an oldtimer or a jap import dont see the difference
 

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bla
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do it yourself bud... Then you know you have done it properly, most garages wont.. All you need is underseal a few brushs... and get painting that bare metal... :)
 

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Discussion Starter #5
Thanks very much guys, yeah i did think about doing it my self, but i aint got a 4 point lift and dont think i can get hold of one without the place wanting to do the job also.

leedanielskyr32-thanks very much for the offer mate, wouldnt mind being shown how to do it actually but just checked the map and you are 2.5 hours drive away unfortunatley, think you are a little to faw away.

Is it just as simple as painting it on all the bare metal under the car? Think my exhaust may have to come off, its 5" bore from down pipe to back box, doubt ill get a paint brush round that??
 

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Is it just as simple as painting it on all the bare metal under the car? Think my exhaust may have to come off, its 5" bore from down pipe to back box, doubt ill get a paint brush round that??
Should be able to spray around it though surely? :)

ps., i have never clambered underneath a car to underseal in my life so that is just speculation and should not be construed as an expert opinion or anything. :dogpile:
 

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You need to get all the old rust removed properly, then they apply some underseal and the place I did had some extra protection on mechanical bits like the diff and hicas.

I ended up taking mine to a local bodyshop as it only cost like £200 and then I new my car was prepared and dont have to worry about the floor rusting out from underneath me in the future lol. Just phone around local bodyshops and you'll find a good place.
 

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bla
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or you could of done for half of lees price..... :0
 

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Yeah I just checked, was actually £130 :D oops :p
 

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Discussion Starter #11
Ok, so its advisable to put it on the diff and hicas units also? Im going to have a ring round at the weekend. Regarding rust, the only bit of surface rust i can see is on the exhaust, and its not quite rust yet either, just starting to go a kind of rust colour if that makes sense, so im aiming for about £130 then
 

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Mark_V
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I decided to Wax oil mine rather than underseal it. Any rust between the bitumen and the body means it will accelerate the corrosion process. The only rust I noticed on my 11 year old car was the front foot wells and a bit around the tyre well. :)
 

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I've just bought a gallon of clear waxoyl to do my car when I get chance. I like the clear stuff better because you can see if there is any rust developing under the waxoyl so you can stop it before it gets any worse. With the black stuff the first you know its rotted is when you see a lump of rust on your driveway that has fell off with a nice clean looking strip of underseal attached to it!!
 

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get two cans of waxoil £10 get under a pit,or mates garage pit plug into compressor go under car and have fun spraying the lot,i got the cans went under to find it had allready been done,duh.
 

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Track addict
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I would do it yourself, i jet washed under mine then left it to dry off in the workshop. Then wire brushed it to get all the loose bits of dirt and crap off then applied the underseal, complete covering with the brush, but also a couple of tins of spray on for the hard to reach areas. Cost all of £50 but well worth doing imo
 

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im undersealing my car at the min ive stripped mine bck to bare metal, the first layer ive put on is a 92% zinc primer then an epoxy primer over that then underseal aswell as seam sealant, if you can get it up on axle stands it would be well worth doing it urself, all you need is either spray it on or brush, this way u no it been done properly
 
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