924Board.org

[timstar92404]

I ordered por-15 paint (6 pack), marine clean quart, metal ready (quart), preval sprayer, and fiber glass sheet (for the battery tray).

anyways the problem is they sent me 2, 8 ounze cans of solvent when I ordered one quart (which is the minimum you can order) of solvent which comes in a plastic bottle.

so I basicly got half of the solvent and the cans are harder to use. I emailed the them 2 days ago and still have gotten no replies.

I don't need more solvent but I thought they should charge me less when they send me half of the solvent I have paid for.


anyone else order from the Canada website?



also got a question, do I just cover my entire battery tray (with rubber coating removed) with the fiber glass cloth and then paint over it ?

won't it require a ton of paint to cover it?

I don't see any big holes in my tray, under the rubber coating my battery tray was soaking wet and muddy no wonder it has rust.
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78 924 sold.
85.5 944

[Mike924]

The problem is, Tim, if you cover the batt. tray with fibre glass it'll most likely continue rusting and eventually split the GRP off. It's not really considered a long-term solution (but it's better than getting wet feet!). However, once the tray starts rusting, there's little else you can do other than cut the whole thing out and weld in some new metal - but that's a tricky job even for an experienced welder (I certainly couldn't do it properly).

I have laid fibre glass in the battery tray of a Triumph (GT6) I had before the 924, and that worked quite well for a while. Try and remove as much of the rusty metal as possible. Don't be faint-hearted! And take the glass cloth right the way up to good metal. You might need two or three overlapping layers.

I don't understand why you think it will need a lot of paint to cover the tray. Are you going right across the full width of the car?

As for the water, you're never going to stop it getting wet in there. The design of the car is such that rainwater runs off the windscreen and down into the battery tray, then it's supposed to find its way out through two holes covered with rubber flaps. These get blocked very easily and need clearing out every couple of weeks in wet weather. To aid draining it helps to park the car facing downhill.
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[timstar92404]

isn't the por14 suppose to stop the rust permanenty? at least thats what they say.

I had to use a chizel to tape off all the rubber coating. it was all wet and muddy beneath the coating. Not going to use rubber coating.

if I see small holes I can fill them with putty filler after paining and then lay the fiber glass and paint again over the fiberglass....

the paint is water resistant so I think it should be fine.

don't car if it won't last forever but at least I won't have fish swiming around in my car during the winter.



next thing is to get a new sunroof seal, they are pretty expensive.

and I need to find someone that can sell me a front left side sunroof "clamp"

the part on the sunroof (the triangle part and the clamp on it), min is broken.


I also need drain tubes for the hatch min was cloged with stones... I had to cut it open and see what was inside.

can I just find some plastic tube from the hardware store to work? I looked in canadian tire already and saw clear plastic tubing but its the same diameter all the way through, not thicker on top and thinner where it goes out of the trunk.
_________________
78 924 sold.
85.5 944

[Mike924]

NOTHING stops rust permanently.

The original galvanizing on the car comes closest, but once it's through that it's there until you cut it out or the steel dissolves away completely. The best you can do is slow it down.

Having said that, the process you described, if carefully executed, should be good for several years. After that, if you keep an eye on it, you might need another go. But don't think you can forget about it and have the problem go away - it will come back.

Gook luck, Mate.
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[timstar92404]

thanks.

I'm more worried about my roof the roof has rust in between the metal areas (in the inside) and is not accessible to sand or to paint so I can't do anything.

already had one tiny rust hole through the roof from this (just had to fill it up and paint it).

but I bet my roof is still many years off from becoming a serious rust problem.... (if I fix the sunroof leak).
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78 924 sold.
85.5 944

[Vince Ponz]

For the users of POR15 I am suggesting that you find some baby food jars to store the unused portion of the remainder of the paint. Pour into the jars and seal with the cap. Do not slosh the paint so that it touches the cap or you will never get it off.

Most of the time you will not use all the paint therefore you can store the extra in small jars. I split them into 2 or 3 jars knowing I will not use all of the remaider in the future on one job.
_________________
"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

[Mike924]

Thanks, Vince.

Good advice.
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[timstar92404]

thats why I got 6 of the small 4 ounze cans instead of a big one.


I removed all the rubber coating (got my fingers all bloody). there reall isn't much rust minor surface rust in the middle parts but the edges are rusty and one part I could poke a tiny hole through and the front edges arent' welded on it seems there is gap that was filled with the rubber stuff...
_________________
78 924 sold.
85.5 944

[-nick]

You need to cut out everything around where you can "poke a hole" through it. I'm guessing the hole is in the corner on the fender side? Under that hole will be rust too. Once you cut out the rust from the battery box, pull the carpet up around that area in the passenger footwell and look for more rust.

Once you've cut out all the rot, you can use a nitric acid (aka rust converter) spray on all the surrounding area. Let that dry, patch up the hole (you can actually use aluminum sheet metal and JB Weld, I know... it's the one thing I've ever seen JB actually hold though.)

Then cover it all with POR-15 and you won't have to worry about leaks anymore. This also helps tremendously in the winter as the windshield won't get as foggy from the damp interior caused by the battery leak.

nick

[timstar92404]

I'm having trouble getting all the rubber coating completely off even with sanding.... especially on the edges.


will por-15 stick to rubber coating also?

the battery tray is mostly brought downt to metal but ther is tiny bits of rrubber coating left on the metal on the edges.


also the area past the battery tray is all ruber coatied too so I don't know if the pro15 when it meets the edges of the tray (where its coated with rubber) will stick.

I can't sand the entire rubber coating under the hood (goes all the way to the heater fan.



and the hole is not on the fender side but the fender side of the tray is pretty rusty too (near the edge.) the hole is in the front (closest to the engine) opposite side of the fender.. Actually it wasn't a hole I poked trough it.

I think the leak was fro the edges, looks like the edges in the front are not welded and there is a gap that is just filled with rubber.
_________________
78 924 sold.
85.5 944