3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Loose throttle body spring, nowhere in stock

Thread Tools
 
Search this Thread
 
Old 03-10-23, 11:53 AM
  #1  
Junior Member
Thread Starter
iTrader: (1)
 
GodzillasRX7's Avatar
 
Join Date: Aug 2022
Location: Vermont
Posts: 16
Received 6 Likes on 3 Posts
Loose throttle body spring, nowhere in stock

I'm in the middle of freshening up my FD before springtime rolls around and the roads are not so salty up here in VT.

When I pulled the throttle body to replace gaskets/coolant pipes and clean it up, I noticed this spring is loose. Visibly, it's not tightly coiled around the metal, and when I simulate the throttle being pushed, there's play in it. I also noticed it driving the car; there's 1/2 - 3/4 inch of "play" in the gas pedal before the throttle actually opens.



I can't find the replacement spring(s) anywhere (Part #N3A113W60, Mazda shows available at a couple dealers but both called after I ordered and said they don't actually have them).

Any advice on how to tighten up the existing spring or what my options are, if any? Could I measure the spring dimensions/design and try to find the same spring elsewhere?
Old 03-10-23, 03:29 PM
  #2  
Walking bowl of punch

iTrader: (2)
 
MilesBFree's Avatar
 
Join Date: May 2001
Location: Chicago, IL, USA
Posts: 779
Received 53 Likes on 35 Posts
i may have a spare one - i bought a polished UIM and TB years ago and kept my old ones. I don't recall if the polished ones had any of the ancillaries tho, and if i swapped them over. will check tomorrow
The following users liked this post:
GodzillasRX7 (03-10-23)
Old 03-10-23, 03:35 PM
  #3  
Junior Member
Thread Starter
iTrader: (1)
 
GodzillasRX7's Avatar
 
Join Date: Aug 2022
Location: Vermont
Posts: 16
Received 6 Likes on 3 Posts
Much appreciated!
Old 03-10-23, 04:55 PM
  #4  
Racecar - Formula 2000

 
DaveW's Avatar
 
Join Date: Sep 2002
Location: Bath, OH
Posts: 3,852
Received 278 Likes on 199 Posts
I'm wondering if somehow it got unwound 1 turn when someone disassembled that area. If so the spring might be OK. Other than totally breaking I don't see how it could just get loose.
Old 03-10-23, 07:00 PM
  #5  
Senior Member

iTrader: (16)
 
gdub29e's Avatar
 
Join Date: Apr 2011
Location: Millersville Md
Posts: 678
Received 213 Likes on 112 Posts
That just takes the slack out of the throttle cable. The ones inboard are the important ones that aid the butterfly’s closure. You need to wind it another turn. This thread has some pictures that should help.

https://www.rx7club.com/3rd-generati...rbish-1144243/


~ GW
The following users liked this post:
GodzillasRX7 (03-12-23)
Old 03-11-23, 08:33 AM
  #6  
Walking bowl of punch

iTrader: (2)
 
MilesBFree's Avatar
 
Join Date: May 2001
Location: Chicago, IL, USA
Posts: 779
Received 53 Likes on 35 Posts
Sorry but it appears i transferred those bits to the polished parts so no spare spring.
Old 03-12-23, 02:50 PM
  #7  
Junior Member
Thread Starter
iTrader: (1)
 
GodzillasRX7's Avatar
 
Join Date: Aug 2022
Location: Vermont
Posts: 16
Received 6 Likes on 3 Posts
Originally Posted by DaveW;[url=tel:12552237
12552237[/url]]I'm wondering if somehow it got unwound 1 turn when someone disassembled that area. If so the spring might be OK. Other than totally breaking I don't see how it could just get loose.
That was a good idea - I tried to wind it back another loop and there just wasn’t enough coil to make it work. I wonder if someone took it off before, shortened the spring, and remade the loop at the end that holds it in place.

Originally Posted by gdub29e;[url=tel:12552249
12552249[/url]]That just takes the slack out of the throttle cable. The ones inboard are the important ones that aid the butterfly’s closure. You need to wind it another turn. This thread has some pictures that should help.

https://www.rx7club.com/3rd-generati...rbish-1144243/


~ GW
Thanks for linking this, I read that a couple weeks ago but must have missed that picture. I tried this but there just wasn’t enough material. It was coiled as tight as could be but still 3/4 inch or so short. I don’t get it! I’m thinking the only option I have now (since I can’t find a new spring) is to cut the spring shorter so it’s tight and bend the end around where it’s supposed to be.

Originally Posted by MilesBFree;[url=tel:12552283
12552283[/url]]Sorry but it appears i transferred those bits to the polished parts so no spare spring.
No worries, thank you again for checking.
Old 03-12-23, 03:09 PM
  #8  
Senior Member

iTrader: (16)
 
gdub29e's Avatar
 
Join Date: Apr 2011
Location: Millersville Md
Posts: 678
Received 213 Likes on 112 Posts
The play you described in the pedal is removed by the cable adjustment, not the throttle body. All that spring does is return the sweep arm back to the stop. They look sorta like your photo. They don’t fit tight on the shaft. If you’re saying that the sweep arm is not returning to the stop correctly and one end of the spring is loose. Then chances are they have the cruise control spring and throttle spring switched or on backwards. But what you’re describing is the adjustment for the actual throttle cable.

The spring you have highlighted is there to hold the throttle cable in position when the curse control is operating ( rotating ).

~ GW

Last edited by gdub29e; 03-12-23 at 03:17 PM.
The following users liked this post:
GodzillasRX7 (03-12-23)
Old 03-12-23, 04:27 PM
  #9  
Junior Member
Thread Starter
iTrader: (1)
 
GodzillasRX7's Avatar
 
Join Date: Aug 2022
Location: Vermont
Posts: 16
Received 6 Likes on 3 Posts
Originally Posted by gdub29e
The play you described in the pedal is removed by the cable adjustment, not the throttle body. All that spring does is return the sweep arm back to the stop. They look sorta like your photo. They don’t fit tight on the shaft. If you’re saying that the sweep arm is not returning to the stop correctly and one end of the spring is loose. Then chances are they have the cruise control spring and throttle spring switched or on backwards. But what you’re describing is the adjustment for the actual throttle cable.

The spring you have highlighted is there to hold the throttle cable in position when the curse control is operating ( rotating ).

~ GW
Thanks for the explanation, that’s super helpful. I’ll tighten up the actual throttle cable when I’m putting everything back together.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FrancesTheFC
2nd Generation Specific (1986-1992)
7
04-16-24 10:13 AM
coolrotariesR1
3rd Generation Specific (1993-2002)
27
04-14-24 07:17 PM
Dudemaaanownsanrx7
3rd Generation Specific (1993-2002)
5
06-21-08 10:25 AM
izanami
3rd Generation Specific (1993-2002)
1
12-23-06 01:36 AM
zookeeper
1st Generation Specific (1979-1985)
3
12-26-02 01:51 PM



Quick Reply: Loose throttle body spring, nowhere in stock



All times are GMT -5. The time now is 03:42 AM.