Blocking off vacuum lnes?
#5
RX-7 Bad Ass
iTrader: (55)
The rubber vacuum caps at the auto parts store are CRAP. Yeah, they seem to work well initally, but they will crack and degrade with heat, and WILL leak in the not-too-distant future.
I really wish someone would make silicone vacuum caps - that would be the perfect solution.
I've taken a number of routes to blocking off vacuum nipples. Easiest is a short piece of silicone tubing with a bolt stuck in it. Not that elegant, but it does work and won't fail. If you have 2 vacuum nipples near each other that need to be capped and they both draw from the same source, you can run a short vacuum line from one to the other, effectively making a loop. Or, go hardcore like I did on my '88 turbo and cut off the nipples and weld them shut . No leaks there!
Dale
I really wish someone would make silicone vacuum caps - that would be the perfect solution.
I've taken a number of routes to blocking off vacuum nipples. Easiest is a short piece of silicone tubing with a bolt stuck in it. Not that elegant, but it does work and won't fail. If you have 2 vacuum nipples near each other that need to be capped and they both draw from the same source, you can run a short vacuum line from one to the other, effectively making a loop. Or, go hardcore like I did on my '88 turbo and cut off the nipples and weld them shut . No leaks there!
Dale
#6
RX-7 Bad Ass
iTrader: (55)
Of course, then I hit up Google -
http://www.eastwoodco.com/shopping/p...&keyword=58041
Eastwood Company sells a pack of different size silicone vacuum caps. They sell them to cap up stuff when you powdercoat a part, but it should do the trick. Only thing is it's a pack with TONS of sizes, and it's $44.
Dale
http://www.eastwoodco.com/shopping/p...&keyword=58041
Eastwood Company sells a pack of different size silicone vacuum caps. They sell them to cap up stuff when you powdercoat a part, but it should do the trick. Only thing is it's a pack with TONS of sizes, and it's $44.
Dale
#7
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Originally Posted by dcfc3s
I really wish someone would make silicone vacuum caps - that would be the perfect solution.
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#8
Import Connoisseur
I got a small box from Advanced auto with something like 40 caps in it for around $6. I even used the largest size along with a bolt to block the hole in the intake elbow
#10
RX-7 Bad Ass
iTrader: (55)
Man, should have hit up McMaster-Carr .
They also list an EPDM cap that's black - temp range to 475 degrees. It was on the same catalog page as the silicone caps. Cheap too!
OK, so solutions to the problem -
- Get the McMaster-Carr vacuum caps.
- Loop two nearby same-source ports together.
- Tap the hole and put a bolt with sealant in the hole - semi-permanent.
- Weld the hole shut - permanent. Or maybe JB Weld, but I'd be afraid of it shooting off under boost.
Dale
They also list an EPDM cap that's black - temp range to 475 degrees. It was on the same catalog page as the silicone caps. Cheap too!
OK, so solutions to the problem -
- Get the McMaster-Carr vacuum caps.
- Loop two nearby same-source ports together.
- Tap the hole and put a bolt with sealant in the hole - semi-permanent.
- Weld the hole shut - permanent. Or maybe JB Weld, but I'd be afraid of it shooting off under boost.
Dale
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