Rattling from the hood
#1
Newbie
Thread Starter
Join Date: Mar 2021
Location: east bay cali
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Rattling from the hood
My car was buzzing from the hood when I removed a hose going to the air filter it stopped the hose I removed is the zip tied one.
I believe it’s the green line
any thoughts?
I believe it’s the green line
any thoughts?
Last edited by Donell Cart; 03-15-21 at 12:18 AM.
#3
Full Member
IF the shutter valve is staying open with the hose as you have it now, you are fine to keep running that way. I just shoved a bolt in the hose to plug it off and have been running that way for awhile.
#4
Slowly getting there...
iTrader: (1)
I'm more worried about your oil metering lines being disconnected and capped off. Are you pre-mixing?
And the shutter valve they're referring to is a butterfly valve in the primary intake runner going to the rear rotor. I believe it closes when you decelerate. It is controlled by a vacuum can and rod, controlled by (I think) 2 hoses, one of which is that fatty you have folded over and ziptied.
This modified manifold has the brass butterfly removed and the vac can replaced with a simple bracket, but you can see where the shutter valve is located (just so you know).
And the shutter valve they're referring to is a butterfly valve in the primary intake runner going to the rear rotor. I believe it closes when you decelerate. It is controlled by a vacuum can and rod, controlled by (I think) 2 hoses, one of which is that fatty you have folded over and ziptied.
This modified manifold has the brass butterfly removed and the vac can replaced with a simple bracket, but you can see where the shutter valve is located (just so you know).
Last edited by Maxwedge; 03-15-21 at 09:18 PM.
#5
Newbie
Thread Starter
Join Date: Mar 2021
Location: east bay cali
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by cmnork;[url=tel:12459370
12459370[/url]]IF the shutter valve is staying open with the hose as you have it now, you are fine to keep running that way. I just shoved a bolt in the hose to plug it off and have been running that way for awhile.
#6
Newbie
Thread Starter
Join Date: Mar 2021
Location: east bay cali
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Maxwedge;[url=tel:12459446
12459446[/url]]I'm more worried about your oil metering lines being disconnected and capped off. Are you pre-mixing?
And the shutter valve they're referring to is a butterfly valve in the primary intake runner going to the rear rotor. I believe it closes when you decelerate. It is controlled by a vacuum can and rod, controlled by (I think) 2 hoses, one of which is that fatty you have folded over and ziptied.
This modified manifold has the brass butterfly removed and the vac can replaced with a simple bracket, but you can see where the shutter valve is located (just so you know).
And the shutter valve they're referring to is a butterfly valve in the primary intake runner going to the rear rotor. I believe it closes when you decelerate. It is controlled by a vacuum can and rod, controlled by (I think) 2 hoses, one of which is that fatty you have folded over and ziptied.
This modified manifold has the brass butterfly removed and the vac can replaced with a simple bracket, but you can see where the shutter valve is located (just so you know).
#7
Newbie
Thread Starter
Join Date: Mar 2021
Location: east bay cali
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by mazdaverx713b;[url=tel:12459318
12459318]Likely a bad shutter valve. They will fail from time to time and will make noise. Its likely stuck partially open. That or the arm is no longer attached and is rattling.
Thread
Thread Starter
Forum
Replies
Last Post