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Dremel wire wheel is good for detail work...try a larger wire wheel on a drill for large surfaces. I've stripped huge areas of corrosion very quickly that way. Then, engine degreaser and simple green to make it like new.
Is that what you did to your headers before the high temp paint?
Is that what you did to your headers before the high temp paint?
Yessir, stripped down to clean metal in about 15 minutes, nice cloud of orange dust covering everything in the area now. They had the standard coating of surface rust you always see on cast iron headers. I got the wire wheels for $4 at Harbor Freight, they chuck up to a standard drill and you get 4 or 5 in different sizes and bristle angles.
Ahh, it's a vacuum hose, and not very big. $80 new - I can see why there'd be some demand for this.
I'll make a rough model and see if I can print it laying down with reasonable geometry. Printed material is a type of polyurethane and has excellent resistance to chemicals and oils.
The material is suitable for operating at a temperature of 66°C (150°F) (melt temp is 200°C+), so I think it should be fine for vacuum lines, but I wouldn't try it on coolant lines.
I'm always on the lookout for them. I travel 26 miles to work, through the country. I was on my way home a little before midnight when I found this doe standing right in the middle of my lane. My fear has always been if I ever hit one, I'd take the legs out from under it and end up with a deer in the windshield. I slammed on the brakes and slowed enough that instead of the windshield, it ended up on the front of the car. I now have a nice crease in the middle of my header panel. Worse, because I have an '83, I'll have to drill out all those spot welds to fix it. That being the case, I think I'll source a 931 header panel, or something similar, when I get around to it.
Got my cam tower all pulled apart, and cleaned the tower and intake about as good as I could get it with simple green and elbow grease. Preparing to paint them. Trying to decided if there is any benefit to sanding before self etching primer, as ruff as these are, I'm thinking not.
Polished the tower top bolt covers, not 100% happy with the polish in bright direct light, may polish them some more. But then, they are just cam tower bolt hole covers, trying to figure out where the effort/payoff point is. But then again, if your going to do it, might as well do it right!
How big is this hose? I assumed a 20mm OD and 3mm thick plus various other dimensions to get my model going.
I printed at 4/5ths scale to test orientation.
Not the prettiest, but it's tough, flexible, and will easily handle vacuum.
If you guys can take some measurements and/or a photo of the hose on top of grid (graph) paper with indicated scale I can work on improving printability.
All I did to my 944 today was put gas in it and drive to work. But I've a trip coming up to the hilly part of Ohio where there are lots of fun roads, so next week it's getting brake pads and an alignment, and the winter tires are finally coming off!
944 Turbo YC Mine is not being used for the current time...It will be a while before I put the engine and hoses back in the car..Would you like me to send one? Just PM me your address. Thanks
Built a special 13 mm extended wrench (20+ inches) to get under the driver's seat motors to hold a nut in the front seat crossmember. I will check it out tomorrow so I can go to phase 2 of wrench bending, etc..Not much clearance trying to do it the other way with the seat all the way to the rear of the tracks...
I replaced a bunch of vacuum hose (may have been original) and checked a couple plugs for the first time, now that I have things sealed up and tuned a bit better the engine is running very well. The plugs look like they
came out of a healthy motor to me.
I have a vac. line pic too but it is pretty boring, even compared to the spark plug pic....
944 Turbo YC Mine is not being used for the current time...It will be a while before I put the engine and hoses back in the car..Would you like me to send one? Just PM me your address. Thanks
I did a vacuum test on the hose I printed and it pretty much immediately loses all vacuum. There wasn't any obvious holes - I think the printed material is just super porous like a sponge. So unfortunately this won't work.
I'm not sure how much demand there is for this hose, but have you guys considered crowdsourcing one from http://www.viperperformance.co.uk/
I did a vacuum test on the hose I printed and it pretty much immediately loses all vacuum. There wasn't any obvious holes - I think the printed material is just super porous like a sponge. So unfortunately this won't work.
I'm not sure how much demand there is for this hose, but have you guys considered crowdsourcing one from http://www.viperperformance.co.uk/
What is the material that you printed from?
I wonder if it could be made to seal with an external treatment.
Also, that hose *should* be under atmospheric pressure as it is the feeder hose from the early Aux Air valve and AC air valve, into the manifold, to keep the idle stable while cold/AC running.
What about soaking the whole printed part in something like a lacquer? Can't think of a good product off the top of my head, getting the inner surface area would help, as long as it doesn't flake off. Or maybe finding a heat treatment that would melt only extremities to seal them.
03-03-2016, 06:31 PM
