Throttlebody work

[Billy Mild]

I am considering sending my stickig TB to Marc to have the polishing service done to fix my sticky throttle plates. Is he the only person to offer this service?

[secondchance]

I am considering sending my stickig TB to Marc to have the polishing service done to fix my sticky throttle plates. Is he the only person to offer this service?

He is the only one I trust.

[Racinfan83]

Send it to Marc. I took my car up there and stayed all day while they worked on it. Marc and his son are very meticulous and know their stuff. If he was closer I would have less $ in my bank account for sure..LOL

[George Maz]

Send it to Marc.
Marc and his son are very meticulous and know their stuff.
My newly acquired car is there now. He found a few issues including one serious that could potentially have lead to catastrophic engine failure if not corrected. Additionally, he is doing even more performance modifications and Dyno-tune to realize this cars full potential.
He's a pleasure to talk to, I'm looking forward to visiting with him and driving my beast home to NY.

[Billy Mild]

My newly acquired car is there now. He found a few issues including one serious that could potentially have lead to catastrophic engine failure if not corrected. Additionally, he is doing even more performance modifications and Dyno-tune to realize this cars full potential.
He's a pleasure to talk to, I'm looking forward to visiting with him and driving my beast home to NY.

I wish I lived closer. He is about an 8 hour drive from me. I will be sending him my TB and chip for a tune. I knew he was good, but I just didn't know if I should be looking at other options.

Next question: Must I drain coolant to take off the throttlebody?

[Billy Mild]

Bump.

Drain coolant then take off the TB?

[Racinfan83]

You have to drain SOME of it not all of it.

http://www.zr1.net/forum/showpost.php?p=138239&postcount=5

[Paul Workman]

WHEN I had coolant in my TB, I found by draining just a few quarts or so was enough, especially if the front wheels were up on ramps. (YEARS ago I installed plugs into the injector housings that routed coolant to the TB. I've had NO issues as result. But, then my Z doesn't see much (if any) winter driving; due to the salt and traction sand laid down.)

[Billy Mild]

I got the TB off. It is being shipped to Mr. Haibeck this afternoon along with my chip. Longtubes here we come.

[Dynomite]

My newly acquired car is there now. He found a few issues including one serious that could potentially have lead to catastrophic engine failure if not corrected. Additionally, he is doing even more performance modifications and Dyno-tune to realize this cars full potential.
He's a pleasure to talk to, I'm looking forward to visiting with him and driving my beast home to NY.

OK....I have to ask......What issue could lead to catastrophic engine failure?

[cuisinartvette]

How is polishing a tb going to pick up power?

[Billy Mild]

It's not for increased power but to fix my sticking throttle.

http://www.zr1specialist.com/HAT%20Web/services/throttle%20body.htm

[George Maz]

OK....I have to ask......What issue could lead to catastrophic engine failure?
Marc Haibeck’s inspection discovered the right upper camshaft chain facing was missing. A new facing was installed. The plastic retaining tab had let go. The left side facing was inspected and found to be present, but the cam cover tolerance at the bolts had to be corrected There's a link on his site that explains what can potentially go wrong.

1990 #1727 street tuned & Dyno-tune now completed

434 rwhp, 366 torque, 511 crankHP

[Billy Mild]

I got my TB and chip back. The car runs much smoother. He said my TB looked like a car with 100,000 miles on it. The tune is leaps and bounds better than what was on their initially. To think I have been driving it with this tune for so long. I thought it was just a clumsy running engine, that is not so. Idle is much improved as well.

I am still occasionally getting the high idle. If I stab the throttle it will come back down to where it should be instantly. Any suggestions on what I should look at next? IAC maybe?