Anyone know what size these threads are? I assumed they were pipe threads, but they are not 1/4 or 3/8th NPT. This is the vacuum source for the brake booster, right?
Thread size question - Intake manifold for triple Weber's
- Thread starter D Calkins
- Start date
The tools to identify a thread are cheap, simple, and readily available. With a caliper and thread gauge, you can accurately measure the size and pitch in seconds.
Here are some mid-tier examples from McMaster, though cheaper versions can be had from other sources.
Metric thread gauge:
https://www.mcmaster.com/product/2071A18
Caliper:
https://www.mcmaster.com/product/4996A72
Here are some mid-tier examples from McMaster, though cheaper versions can be had from other sources.
Metric thread gauge:
https://www.mcmaster.com/product/2071A18
Caliper:
https://www.mcmaster.com/product/4996A72
I would assume that these need to have some sort of barb fitting attached to them to connect the vacuum hose. What would be the proper slant to use? Teflon tape?
That is an odd size & thread type for a vacuum source that needs to seal.
I plan on using both a thread seler and a copper or aluminum sealing washer.
I'll hit the store in the next day or so to find a fitting for it. I'll be plugging mine, so I'll get the size soon.
If you plug it, where will you get the vacuum to power your power brakes?
You can always use a vacuum pump.
I'm going boosterless with dual masters..