Member Jonathan Kay Posted January 31, 2022 Member Share Posted January 31, 2022 Previous discussions.JonathanPS: Does anyone fancy writing a quick summary as a Guide? Link to comment Share on other sites More sharing options...
Beagler Posted January 31, 2022 Share Posted January 31, 2022 I found this useful,https://www.roadandtrack.com/car-culture/buying-maintenance/a27182434/how-oil-catch-can-works/ Link to comment Share on other sites More sharing options...
SM25T Posted January 31, 2022 Share Posted January 31, 2022 Nothing to do with the 7 'grot trap' Link to comment Share on other sites More sharing options...
Beagler Posted January 31, 2022 Share Posted January 31, 2022 Apologies thought it was a reference to oil trap. Link to comment Share on other sites More sharing options...
OldAndrewE Posted January 31, 2022 Share Posted January 31, 2022 No need to apologise! It is a reference to these areas of the chassis Link to comment Share on other sites More sharing options...
Beagler Posted January 31, 2022 Share Posted January 31, 2022 Please remove. Link to comment Share on other sites More sharing options...
Beagler Posted January 31, 2022 Share Posted January 31, 2022 Coincidentally this morning I vacuumed out those areas having had it on my to do list.. I have been spraying various parts of car with AC50 and wanted to get some where the body joins the chassis. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted January 31, 2022 Share Posted January 31, 2022 Dinitrol 1000 (clear) is nice and easy to apply and will penetrate well tooACF is also useful for pre winter storage Link to comment Share on other sites More sharing options...
Benton Posted January 31, 2022 Share Posted January 31, 2022 Agree as above. Don't forget to check occasionally for any build up of crud. Link to comment Share on other sites More sharing options...
BrettJ Posted January 31, 2022 Share Posted January 31, 2022 I taped up about 2" above the bottom rails and sprayed Dinitrol, along them and sprayed in the rot trap areas using a pipe connected to the spray can. I then added additional silver tape where the side panels meet the foot wells. Link to comment Share on other sites More sharing options...
Hampshire West AR Posted January 31, 2022 Share Posted January 31, 2022 To me this sort of thing could have been designed out when they went to the metric chassis? Could some sort of plastic trap be designed and 3 D printed to be stuck into the area with silicon sealant to stop wet crud getting down the gap?Nick Link to comment Share on other sites More sharing options...
Dave J Posted January 31, 2022 Share Posted January 31, 2022 simply make a small piece of sheet ally to fit the gaps with a 90 degree edge and silicon in place. Link to comment Share on other sites More sharing options...
ChrisC Posted January 31, 2022 Share Posted January 31, 2022 The grot traps are an area where corrosion occurs, but is not the only one, but road salt gets everywhere, places you can't clean or protect. If you want long chassis life down drive until the salt has gone (2 weeks after they stop and only if there has been good rain fall to wash it off), if no drive and enjoy the car. Driving in salt mean your enjoying the car twice as much but the chassis will last 1/2 as long. Salt also damages all the zinc surfaces of the fastners and bare aluminium (engine gearbox fuel tank etc). Personally I hate the damage salt does so I SORN. Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted January 31, 2022 Leadership Team Share Posted January 31, 2022 These photos will give some idea of how much crud enters the chassis sides via the opening at the front, and just how far it can travel back. The muck will then hold moisture, and if there's salt content as well the resulting corrosion can be bad. I took these photos when I stripped the interior panels out of my car at 8 years old: Stu. Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted January 31, 2022 Area Representative Share Posted January 31, 2022 It's all very well saying SORN, but the Seven is my principal car (the other being the 21, which IS on SORN). Link to comment Share on other sites More sharing options...
Dave J Posted January 31, 2022 Share Posted January 31, 2022 well it will then suffer with corrosion ... Link to comment Share on other sites More sharing options...
2cv7 Posted February 1, 2022 Share Posted February 1, 2022 I jack the front of the car up every 2 years and spray warm cavity wax into the grot trap. Leave for a day or two until it oozes out of the rear of the chassis. I use Dinitrol 3125 and a Pro Wax kit from rust busters,( which has sadly doubled in price in the last few years).I do not use my car in the winter as I have a Morris van, 2cv and Mazda bongo that are used all year round. They are all rusty piles of carp now..... Link to comment Share on other sites More sharing options...
Gridgway Posted February 1, 2022 Author Share Posted February 1, 2022 Thanks all. Somehow the wording on my actual post didn't appear after posting on my phone. Is that a known forum problem.Anyhow, you all understood the question!Regarding trying to seal the area, I'm not convinced that's at all easy, especially with the driver's side and the longer footwell.Getting it nice and clean and spraying dinitrol in sounds good. However, getting it nice and clean doesn't sound easy. Could use solvent like brake cleaner and an air line (with suitable face proection!). Or maybe the pressure washer, although not keen on doing that with the car in the garage.I know some of the powder coat has come off the square tube as it came out when I cleaned the crud out. What does dinitrol do when it encounters metal with surface rust? Does it just cover it and stop further rusting or does it bond to it like POR15?You can't really spray POR15 in there without making a horrid mess. Maybe it's mask-able?Maybe I should just clean as best as I can, spray some dinitrol in and not worry too much. It won't go out in the salt in my ownership! Link to comment Share on other sites More sharing options...
Benton Posted February 1, 2022 Share Posted February 1, 2022 If you try using the pressure washer you'll probably end up with a lot of water going into the cockpit and most likely ending up under the seats etc. Link to comment Share on other sites More sharing options...
timb2117 Posted February 2, 2022 Share Posted February 2, 2022 I'm with BrettJ - thoroughly cleaned out when I had engine/ gearbox out, then liquid/ waxy sealer and finally really strong adhesive silvered heat shield tape, to prevent ingress again. Link to comment Share on other sites More sharing options...
Leadership Team Toughie Posted February 2, 2022 Leadership Team Share Posted February 2, 2022 #20, Benton,"you'll probably end up with a lot of water going into the cockpit and most likely ending up under the seats etc."So the same as a typical blat in perverse British weather! Put the hood on, out comes the sun. Take the hood off, down comes the rain. Link to comment Share on other sites More sharing options...
Benton Posted February 2, 2022 Share Posted February 2, 2022 I hope any eventual EV7 is a bit more watertight otherwise it could turn into a shocking experience! Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted February 2, 2022 Leadership Team Share Posted February 2, 2022 If you get the speed just right in Edinburgh (in July) the grot traps can have a thorough cleaning ... Link to comment Share on other sites More sharing options...
Gridgway Posted February 2, 2022 Author Share Posted February 2, 2022 Thanks all, I have decided that what I will do is give the area a good clean and then spray some dinitrol in using their spray can plus extension hose idea. I'm not going to use the pressure washer as I suspect that will stay wet and ruin the dinitrol application - or even worse, seal water in!I may well use some brake cleaner for a final wash out as that can dry easily. Link to comment Share on other sites More sharing options...
Beagler Posted February 2, 2022 Share Posted February 2, 2022 .... or worse you could be poached. Link to comment Share on other sites More sharing options...
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