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Teardown of 1966 901/05 Engine
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A few observations so far:
1) Sprocket wear? 2) Oil cooler probably shot. 3) Solid tensioners? 4) Master link chain will be replaced. Next instalment: Teardown to the crank. |
great thread.
keep sharing please thanks brant |
John-those sprockets look quite worn. If the cooler holds pressure and doesn't leak, it should be fine as long as you don't mind the cosmetic issues. Solid tensioners are good for a race motor, I would probably use 930 spring tensioners with collars to maintain the original appearance and not be quite as hard on the chains (expansion), yet still have a fail-safe solution.
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Solid tensioners are a bad idea...it's like driving a car with solid springs and stone tires. Real high loads are experienced by the system and will accelerated wear of the chain and sprockets.
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Jon,
Can you please measure the ID of your exhaust outlet pipe in your heat exchanger? The image appears as if it has the restrictor that Porsche used to tame the HP so the ‘67S has more than the Solex cam 911 normal. http://forums.pelicanparts.com/uploa...1170428770.jpg http://forums.pelicanparts.com/uploa...1170459961.jpg Best, Grady The image doesn't seem to upload. |
Jon, no wonder you were always cold while driving, there's no heat exchanger on the driver's side! :)
The only difference that I can see is that you have the 901/01 blockoff plate, because your car is a Solex car. While I've got your attention, can you describe your cam oil lines? Do they have ONE orange stripe or three? Mine have ONE and Cohline makes an oil hose with ONE, but I have seen THREE and I have seen a BLUE stripe, although to be true those were both on Center-lubed cars. Did you use any particular technique for getting the case clean? The machine shop which will do the case squirters has requested that the case be spotless when they receive it. |
John-
hot-tank it first, then fine wire brush/die grinder/brake cleaner works very well to get the case looking nice. Another possibility: remove all the plugs, hot-tank, then plug the oil relief pistons, bead-blast the case (BEFORE you put in the squirters). Obviously do a very thorough job cleaning out any media, re hot-tank, etc. I would NEVER bead-blast a case that already had squirters installed. This is a bead-blasted '65, that then had the squirters installed : http://forums.pelicanparts.com/uploa...1170457713.jpg Cheers Scott |
Dry ice blast it instead; then you have NO worries of residue.
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Grady, the exhaust measures 1 3/8's, but that's at the narrowest point. It's like there's a washer, so to speak, just inside the flange. You can feel it easily with your finger. I'm sure the actual pipe, inside, is closer to 1 1/2". I put them on the side, and installed 1 1/2 headers.
John, You know I had the hardest time trying to get the heater fixed. Everyone scratched their head wondering why I cared, living in Hawaii. I've included a shot of my oil line. It appears to have two orange stripes, repeated. As far as the case goes, I gave it to my machine shop, after doing basic triage. When I got it back, it was all elbow. Scotch-brite pads, carb cleaner, contact cleaner, lots of air, etc. http://forums.pelicanparts.com/uploa...1170458883.jpg |
Jon,
The non-restrictor pipe measures 46 mm = 1.801". You indeed have the "Solex restrictor heat exchangers". Very rare :D just lower power. :D Best, Grady |
Thanks for the info Grady. I have a large, and growing, stash of parts for the 66'. I save everything, thinking that someday, someone may want to return it to origional form.
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Grady,
Put on your Manhattan Trophy Hat for me . . . if danger to the oil system were not an issue, what would your opinion be of the above bead-blasted case? I like the fact that the finish is uniform and it would provide a good basis for "patina" to form over the years, but if you think it would irreversibly doom the effort I'll think otherwise. Trivia: Years ago, before I was seduced by Wall Street, I ran a sodium bicarbonate blasting business. The finish is excellent, damage to the substrate minimal, and the media dissolves with a dip in hot water. There is a contractor down in Westchester county that I believe could make quick work of the case, with much less danger of residual contamination than any other media (except, as Kenik points out, Dry Ice Pellets, which is a process so expensive that only Boeing uses it!) While we're looking at cases here's one you should all recognize. . . http://forums.pelicanparts.com/uploa...1170518954.jpg |
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dry ice blasting is pretty common now. You can actually buy one of the machine for about $1500 to $2500 used.
There are two or three places in Houston that'll do it for you. I'm sure other big cities have them too. H |
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