2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

Question about dashpot.

Thread Tools
 
Search this Thread
 
Old 08-01-04, 03:24 PM
  #1  
Rotorhead for life.

Thread Starter
 
Crush's Avatar
 
Join Date: May 2002
Location: Arizona
Posts: 340
Likes: 0
Received 0 Likes on 0 Posts
Question about dashpot.

No, its not a stupid "I want to throw bigger flames" question. Lol Actually, my car has always been REALLY jerky when I let off of the throttle, its not motor or tranny mounts either. I tried to adjust my dashpot but it never did anything. Well, my car used to backfire as loud as a rifle when I shifted really high, and throw about 2 foot flames. So I completely took my dashpot off to see if the car acted any differently, and it seems to run more normal. I dont get any backfires at high shifts and rarely get flames. So what the hell does this mean? Less backfires and flames without dashpot on? Was it not working in the first place or what, because I want to put it back on but I dunno....
Old 08-01-04, 04:45 PM
  #2  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
Since its function is to prevent the throttle plates from slamming shut on a quick decel, if she's running better with it off, with it on there it might have been a little "slow", allowing excessive intake air which contributed to your backfiring. Mine backfires on a "***** to the wall" shift also, then again I'm shoving continuous air into my "non-existant" cat from the air pump, so I figured that was what was causing it...Hmmm, might have to try what you're doing with the dashpot...
Old 08-01-04, 05:24 PM
  #3  
Throbbing Member

 
scheistermeister's Avatar
 
Join Date: Feb 2004
Location: Cincinnati, OH
Posts: 853
Likes: 0
Received 0 Likes on 0 Posts
sorry for being dumb but whats a dashpot?
Old 08-01-04, 05:36 PM
  #4  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
A dashpot is a round looking thing on the throttle body. It cushions the throttle plates when they are slammed ****.

I removed all of mine.
Old 08-01-04, 06:16 PM
  #5  
Rotorhead for life.

Thread Starter
 
Crush's Avatar
 
Join Date: May 2002
Location: Arizona
Posts: 340
Likes: 0
Received 0 Likes on 0 Posts
Hmm, I am going to tinker around with it and see why its not working.
Old 08-01-04, 06:19 PM
  #6  
1.3L is not that small

 
cwsttu's Avatar
 
Join Date: Apr 2002
Location: Nacogdoches Tx
Posts: 1,470
Likes: 0
Received 1 Like on 1 Post
hhhmm i wouldnt know why removing it would cause loss of flames... when you remove it the TB plates slam shut cuasing the air to not flow thru which in turn makes your motor run very rich and bog a bit, and when you run rich you are more than likely to throw flames.... are you sure you are throwing them right... after modifying my dashpot i have more backfires than before i modified it
Old 08-01-04, 07:10 PM
  #7  
Rotorhead for life.

Thread Starter
 
Crush's Avatar
 
Join Date: May 2002
Location: Arizona
Posts: 340
Likes: 0
Received 0 Likes on 0 Posts
Exactly, thats why I dont get it. Does that mean there is something wrong with my throttle plates or what? I dont know.
Old 08-01-04, 07:18 PM
  #8  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes on 19 Posts
Rhetorical question: Don't the injectors shut off when you let off the throttle? Rhetorical answer: Yes. If the tps is set right.
Old 08-01-04, 08:21 PM
  #9  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
Yes Hailers, but during a hard romp, and knowing that our girls run rich as hell, don't you think that SOME fuel is still making its way through the exhaust process? My backfires are always in the cat (sounds like it's even further back than that), and always singular events...

And yes, my TPS is set right, I just checked it out through a 50 mile drive to work the other day...

Hey Rat- since you have 'em off, how's the driveability & backfiring (if any)?
Old 08-01-04, 08:27 PM
  #10  
Rotorhead for life.

Thread Starter
 
Crush's Avatar
 
Join Date: May 2002
Location: Arizona
Posts: 340
Likes: 0
Received 0 Likes on 0 Posts
Since I have mine off, I dont notice any difference whatsoever in driveability. It feels exactly the same as before. Dont know what people are talking about that it can make your car stall and all that, but mine didnt make any difference.
Old 08-01-04, 08:34 PM
  #11  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
I can see where the "stalling" talk would come from- slamming the air off like that can cause "compressor stall" effects, which obviously doesn't affect a rotary as bad as a jet engine...

I'm just wondering if removing that sucker is gonna take care of the backfiring, without causing any "collateral damage"...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
_Tones_
Adaptronic Engine Mgmt - AUS
10
05-25-21 05:37 AM
Nosferatu
2nd Generation Specific (1986-1992)
7
09-05-15 02:13 PM



Quick Reply: Question about dashpot.



All times are GMT -5. The time now is 06:16 AM.