| Author | Message | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3310 Registered: 2-2001 |
For sure Tom. For sure. | ||
| TomD (Tifosi)
Intermediate Member Username: Tifosi Post Number: 1575 Registered: 9-2001 |
if ge makes it there maybe some in the hudson river  | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 424 Registered: 5-2001 |
BTW, Eastwood sells Glyptol. | ||
| Mark (Markg)
Member Username: Markg Post Number: 294 Registered: 2-2001 |
GE makes a 'paint' called Glyptol (sp?) used to coat electrical windings; we used it extensivley to coat the inside of engine blocks to aid in oil return in my 'old days' building Z-car race engines. It should do the job of protecting porous surfaces. | ||
| Kurt Kjelgaard (Kurtk328)
Junior Member Username: Kurtk328 Post Number: 147 Registered: 3-2001 |
As far as I know, zinck chromate coating is not used on aluminium, but on ferrous surfaces to inhibit corrosion (rust). | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3290 Registered: 2-2001 |
Well, Peter, If you are able to anodize the housing that is better yet. As long as the process holds up. I know there are kits out there that after a while it peels. You had the answer all the time. Got to be better than a primer which would never hold. | ||
| '75 308 GT4 (Peter)
Intermediate Member Username: Peter Post Number: 2127 Registered: 12-2000 |
The coating I'm refering to is the darker coloured area, which covers the turbine channel (that swooshy-shapey thingy. How's that for technical terminology?). I've thought about this and I may end up anodising it. I anodised my aluminum bike parts in my garage years ago and its held-up very well. It would be an ideal coating for a harsh enviroment like this. Verell, I do use distilled water and my original pump was fine when I took it off. This is a spare pump I bought and I want to recondition it for future emergency use. | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3286 Registered: 2-2001 |
I think what Peter is asking here is this appears to be a coating. He is redoing a old pump that has some porosity, corrision, to the housing. He is saying also that someone else used a coating to preserve another pump housing they were working on. The only coating I can think of that would be durable to stop further corrosion would be something that would adhere and last over time. That is why I said a powder coating process. JMO | ||
| BretM (Bretm)
Advanced Member Username: Bretm Post Number: 2810 Registered: 2-2001 |
I thought they used zinc chromate only as a coating on the FI system lines of the 2 valve and 4 valves from the K-Jet to the injectors. Usually we just used like a scratchy sponge like material to clean off parts like this (I don't know what the stuff is called, it's like plastic brillo pad but not as harsh, about 1/4"-3/8" thick and I have it around at home too so it can't be some exotic Ferrari deal). I could be wrong, but I don't think there is a special coating on this that needs to be taken care of. I would clean off a little of the deposits carefully and see if anything else comes off with them, if not then no problem. What would they really gain with coating just the inside of the pump housing? | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 423 Registered: 5-2001 |
IMHO, If you use distilled water(here we go again...) to dilute your coolant, & replace the coolant every year (every other year at most), you won't get any deposits or other corrosion signs. When I rebuilt my water pump last year, the aluminum interior , & brass pieces were still bright as if they'd just come from the factory. | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3277 Registered: 2-2001 |
I am sure Zinc chromate primer will wash off in time. Something like a powder coat process to adhere and not flake off. | ||
| '75 308 GT4 (Peter)
Intermediate Member Username: Peter Post Number: 2126 Registered: 12-2000 |
Here's a small bearing 308 water pump I'm currently rebuilding:  I'd like to clean off the deposits but I'm afraid of removing the dark coating with it. What is this coating? I can't remember where this was mentioned, but when someone was/is rebuilding these things, they spray a zinc-chromate on it. Wouldn't this get "washed" off with the running coolant? It needs some sort of treatment, as I'm sure within time, it'd be in worse shape. |