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Just bought a used 03/Z06 and found that it had suffered from the infamous leaky battery syndrom. I've removed the tray and cleaned all residue from the battery that failed. Two things will need to be done though, first I need to replace the speed nuts that secure the battery tray to the tray riser. Secondly the finish on the frame member below the tray where the tray riser is attached/welded has come off. I'd like to recoat this area but I'm not certian what the factory uses. Is it some sort of undercoating? It appears to be too thick to be just paint. Does anyone know what it is and what have others used to refinish this area?
Last edited by PEERPSI; Sep 7, 2010 at 07:06 AM.
Reason: spelling
Just bought a used 03/Z06 and found that it had suffered from the infamous leaky battery syndrom. I've removed the tray and cleaned all residue from the battery that failed. Two things will need to be done though, first I need to replace the speed nuts that secure the battery tray to the tray riser. Secondly the finish on the frame member below the tray where the tray riser is attached/welded has come off. I'd like to recoat this area but I'm not certian what the factory uses. Is it some sort of undercoating? It appears to be too thick to be just paint. Does anyone know what it is and what have others used to refinish this area?
first I would neutralize the bejesus out of the entire area with (copious amounts of) sodium bicarbonate (baking soda) followed by water to get as much of the acid off as possible. I would probably try to use dionized water or distilled for the rinse at least - ionic contamination is not your friend when it comes to electrical connections...
Ss far as the paint / undercoating, I'm not sure, but I do know that por15 is nothing short of amazing when it comes to covering bare metal whether it is corroded or not. That would handle the issue of future corrosion best, then you can put whatever you like over that whether it be undercoating or just more paint that best matches the factory. hope this is helpful
As I'm sure you know, the area beneath the battery has some very important electrical components and wiring. Make sure the acid didn''t make it that far or you may experience truly nightmarish problems.
Parts stores sell various brands/types of "undercoating in a can" that may reproduce what has been damaged on your frame. Good luck.
Thanks for the replies. Baking soda and flooding have been done. The condensor or evaporator, not sure which, appears un harmed as do the wiring. There was very little residue and it appeard to have already been hit with baking soda. The finish appears to thick and pliable to be paint so I may go with the undercoat in a can idea. What I will likely do is spray into a can and then apply with a brush. I don't want to get it on the AC unit.
Thanks for the replies. Baking soda and flooding have been done. The condensor or evaporator, not sure which, appears un harmed as do the wiring. There was very little residue and it appeard to have already been hit with baking soda. The finish appears to thick and pliable to be paint so I may go with the undercoat in a can idea. What I will likely do is spray into a can and then apply with a brush. I don't want to get it on the AC unit.
What does the ECPM and the wiring harrness look like? As mentioned about I'd POR the area then a lite coat of undercoating. IMHO
I second the POR-15. I had the same problem 3 years ago. It sounds like you already have everything apart but it will be easier if you can also get the car up, either on jack stands or ramps. The frame will be stripped underneath as well. The POR-15 is a two step process that created a super hard coating on the frame. It's not too hard, just a little time consuming.
Mine also had damage to the plastic vacuum lines that control the HVAC. I had to replace 3 or 4 sections of it.