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| Weird vacuum pipe on 225 in '66 D-truck https://slantsix.org/forum/viewtopic.php?t=35301 |
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| Author: | SlantSixDan [ Mon May 11, 2009 12:22 pm ] |
| Post subject: | Weird vacuum pipe on 225 in '66 D-truck |
The auction linked in this post contains this engine photo:  I can't make heads or tails of that large-diameter hardline connected to the intake manifold vacuum tap via…a filter or sensor or switch or somesuch. Way too big to be climate control, and these trucks didn't have vacuum-operated heaters anyhow. Truck doesn't have power brakes. Anyone got a clue? |
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| Author: | 6365Abody [ Mon May 11, 2009 12:52 pm ] |
| Post subject: | slave cylinder assist? |
It doesn't look stock, but it also looks like it is going down to the slave cylinder area. I used to own a 225 3 speed 66 D100. Does the slave cylinder have an assist? |
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| Author: | Reed [ Mon May 11, 2009 1:34 pm ] |
| Post subject: | |
Maybe its me, but it looks like the tube flattens out and passes under the upper bolt on the trannsmission side of the engine to transmission brace. That is a funky throttle linkage too. |
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| Author: | SlantSixDan [ Mon May 11, 2009 1:47 pm ] |
| Post subject: | |
I've asked the seller for larger engine photos — don't imagine he'll send them, but we'll see. Throttle linkage is funky but stock. |
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| Author: | Aggressive Ted [ Mon May 11, 2009 3:27 pm ] |
| Post subject: | |
Maybe a GM tranny under there???? Pretty odd that is for sure. |
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| Author: | sandy in BC [ Mon May 11, 2009 3:38 pm ] |
| Post subject: | |
Looks like the vacuum line to a Hydro-Vac. |
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| Author: | SlantSixDan [ Mon May 11, 2009 3:54 pm ] |
| Post subject: | |
Truck has a 4-speed <i>manual</i> transmission. And no power brakes, according to the owner (who may not know correctly). |
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| Author: | ceej [ Mon May 11, 2009 4:14 pm ] |
| Post subject: | |
An old vacuum activated PTO or Two Speed? CJ |
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| Author: | sandy in BC [ Mon May 11, 2009 4:36 pm ] |
| Post subject: | |
http://www.bendixvrc.com/itemDisplay.as ... entID=3246 |
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| Author: | SlantSixDan [ Mon May 11, 2009 4:40 pm ] |
| Post subject: | |
Mmm, veddy eeeenteresteenk. I believe you've nailed it — would be easy for an owner who doesn't know much about vehicles to miss these power brakes on a cursory underhood inspection. |
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| Author: | sandy in BC [ Mon May 11, 2009 4:44 pm ] |
| Post subject: | |
Its easy for a daily driver of these vehicles to not notice the power brakes..... I was tipped off by the Camper Special designation.. www.sweptline.org is a wealth of info on these. The wife has a 66 D100 with a Volare front suspension..... |
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| Author: | slantzilla [ Mon May 11, 2009 6:38 pm ] |
| Post subject: | |
Power brakes was the first thing that popped into my pea brain too. Lots of old trucks had that stuff under the driver's floor. 
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