What is that little plunger thing ...
11-12-2012, 04:52 AM
#1
Registered User
Thread Starter
Join Date: Nov 2012
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
What is that little plunger thing ...
that the throttle arm bottoms out on?
to be clear the throttle cable attaches to this arm and there is an allen screw that i though was a stop, but it depresses a little do da, that does not seem to have a function.
is this just to dampen the throttle closing?
to be clear the throttle cable attaches to this arm and there is an allen screw that i though was a stop, but it depresses a little do da, that does not seem to have a function.
is this just to dampen the throttle closing?
11-12-2012, 06:11 AM
#4
Registered User
Join Date: Sep 2007
Location: San Francisco East Bay
Posts: 8,252
Likes: 0
Received 820 Likes
on
648 Posts
Actually, there are two (at least!) "little plunger things."
In the foreground of the picture is the "Dashpot", which does damp (not dampen) the throttle closing (both you and MudHippy are correct). If the throttle slams shut, the fuel left in the intake has no air to burn, so you get a fireball out the exhaust. Or at least a high-HC puff.
The one in the back is the throttle opener. When the vacuum goes to zero, the throttle is opened a crack. I believe this is to reduce dieseling.
The manual is a terrific resource: http://personal.utulsa.edu/~nathan-b...93throttle.pdf
In the foreground of the picture is the "Dashpot", which does damp (not dampen) the throttle closing (both you and MudHippy are correct). If the throttle slams shut, the fuel left in the intake has no air to burn, so you get a fireball out the exhaust. Or at least a high-HC puff.
The one in the back is the throttle opener. When the vacuum goes to zero, the throttle is opened a crack. I believe this is to reduce dieseling.
The manual is a terrific resource: http://personal.utulsa.edu/~nathan-b...93throttle.pdf
Thread
Thread Starter
Forum
Replies
Last Post
v_man
86-95 Trucks & 4Runners
14
07-23-2015 04:01 PM
