Check Valve Vacuum Lines

Reply Subscribe

Thread Tools

Search this Thread

Jan 1, 2020 | 07:57 PM

Natty C

Thread Starter

Melting Slicks

Joined: May 2019

Posts: 3,238

Likes: 1,403

From: Mid-Atlantic

2025 C4 of the Year Finalist - Unmodified

2023 C4 of the Year Finalist - Unmodified

2022 C4 of the Year Finalist - Unmodified

2021 C4 of the Year - Unmodified Finalist

Check Valve Vacuum Lines

Anyone know what size they are? There's three lines on my '90 Coupe. I need to replace all three vacuum lines. Thanks!

Also, what's the best way to test the valve itself? Just suck on it and blow into it? Which end do you suck on and which end do you blow? lol.

Last edited by Natty C; Jan 1, 2020 at 08:19 PM.

Jan 1, 2020 | 10:46 PM

jv9999

Melting Slicks

Joined: Jan 2014

Posts: 2,192

Likes: 381

From: Lunenburg MA

I believe the single end is 1/8" and the double is 3/16". Suck on the single end if you're so inclined :-)

Jan 2, 2020 | 02:12 AM

Natty C

Thread Starter

Melting Slicks

Joined: May 2019

Posts: 3,238

Likes: 1,403

From: Mid-Atlantic

2025 C4 of the Year Finalist - Unmodified

2023 C4 of the Year Finalist - Unmodified

2022 C4 of the Year Finalist - Unmodified

2021 C4 of the Year - Unmodified Finalist

Quote:

Originally Posted by jv9999

I believe the single end is 1/8" and the double is 3/16". Suck on the single end if you're so inclined :-)

Thanks. I'm going measure them when I pull them off, but wasn't exactly sure if what's installed is actually right. They likely are, by the looks of them they're probably the original ones. Anyway, good to know for comparison sake.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump