TB removal and then some!!!

[Roadster]

Phil,
Glad to anytime I can...
Thanks for the pics, no success in getting a 7mm screw as mentioned in the other thread. So the spec you gave will help me get the correct cap screw.
Going out to the other car tomorrow will see if we can massage the contact end as you have shown after I get one.
Thanks for the tip....appreciated...


Sent from my SM-G935P using ZR-1 Net Registry mobile app

[Jagdpanzer]

In my experience when using a bright light the opening clearance appears much bigger than it actually is when measured with a feeler gauge.

[XfireZ51]

Originally Posted by Jagdpanzer

In my experience when using a bright light the opening clearance appears much bigger than it actually is when measured with a feeler gauge.

phil,

I understand what ur saying but that still looks bigger than the thickness of a paper strip. Due to the contour of the bore, I don't rely on a feeler gauge. A paper strip gets it close as a start.

[carter200]

Need an engraved billet throttle body plate to clean things up.

[Roadster]

Originally Posted by Jagdpanzer

In my experience when using a bright light the opening clearance appears much bigger than it actually is when measured with a feeler gauge.

Originally Posted by XfireZ51

phil,

I understand what ur saying but that still looks bigger than the thickness of a paper strip. Due to the contour of the bore, I don't rely on a feeler gauge. A paper strip gets it close as a start.

Did the paper strip test as posted in the other thread, but would like to know how much of an opening it really is...

Originally Posted by carter200

Need an engraved billet throttle body plate to clean things up.

Sounds good to me, what are the choices???

[carter200]

You've seen my billet throttle body plates on many, many Z here and in the newsletter in my sponsor section. Email me if you have ideas for something else.

[XfireZ51]

Originally Posted by Roadster

Did the paper strip test as posted in the other thread, but would like to know how much of an opening it really is...

The paper strip is about .002". Its a place to start not a final. That will be based on IAC counts and desired idle rpm. The paper should have a slight drag to it.

[Roadster]

Originally Posted by carter200

You've seen my billet throttle body plates on many, many Z here and in the newsletter in my sponsor section. Email me if you have ideas for something else.

Can't send you an email as of yet because of the forum problem.
I do have an idea for something else....

Originally Posted by XfireZ51

The paper strip is about .002". Its a place to start not a final. That will be based on IAC counts and desired idle rpm. The paper should have a slight drag to it.

Copy that....thx...

[Roadster]

FYI, as per Phil's recommendation....went to HD and purchased the following...
Cap screw, hex bolt & nuts...originally purchased a 7mm bolt, but was too big...also could not locate a full size nut as of yet!!!

now my grinding abilities are not the best....lol so what I did was used a file to smooth and "flatten" out the bottom of the screw for a full contact with the linkage. my grinding skills on the left....lol the file work in the middle and a screw as is on the right...as you can see with the screw in the middle the outer edge is removed for a totally flat surface. also did this with the hex bolt...

now you can have a choice as to what type of screw or bolt to use as to if you will ever need to do the min/air adjustment as per Dominic on the vehicle. the Cap screw uses a 4mm Allen hex wrench which I have is almost 4" L.
the Hex bolt uses a 8mm combo wrench which I have is almost 4 3/4" L for adjustments... (your sizes may vary)
each one will reach outside of the linkage area making adjustments on the vehicle easier. (although IMO and what Phil has shown, the Hex Bolt would seem the way to go)


for the original idle screw, I found that either a 2mm or 3mm Allen will fit that opening, but the keys are way too short to reach in and make any on car adjustments....

[XfireZ51]

Yes I would advise against the Allen bolt. SOOOOOO much easier w the hex head. Its a small throttle plate, so tiny changes make a BIG difference.