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#51 | |
![]() Join Date: Nov 2016
Location: Norway
Posts: 397
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Expert opinion received from Bill Boudreau,
Quote:
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- '90 ZR-1 |
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#52 |
![]() Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Your 6.5mm disc thickness translates to .255 inches. As Bill notes .320 is the standard for a new disc. As I understand it minimum thickness is .230. So your disc is about done.
Will you simply replace the disc or will you take the opportunity to install a light weight flywheel and sprung hub disc? H ![]()
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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#53 |
![]() Join Date: Nov 2016
Location: Norway
Posts: 397
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The disc seems to be due for replacement, yes. It seems Bill has faith in the pressure plate and TO bearing, but he dares not give an estimate on the remaining life span of the DM flywheel.
Light flywheel is not an option for me. I've gone that way before on another project, and I regretted it ever since. The rattle and loss of driveability is just not worth it. I see Jerry's has a couple DM flywheels left, and I must say it's tempting, but it's not a cheap option. Right now I'm just looking to see if I can find all the right parts and their price, to estimate a total cost. The OEM clutch disc also seems hard to find.
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- '90 ZR-1 |
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#54 |
![]() Join Date: Nov 2016
Location: Norway
Posts: 397
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Got the TB back from Haibeck this week, and it's obvious that there is just so much one can do when the blades are getting worn. You can still see right past the blades close to the shafts. Maybe I'll have to attack it with the Molycote D321-R as well, to Band-Aid the lost DAG. TPS had also gotten damaged during shipping back to me, so I'll need to replace and calibrate that one as well.
Too bad, really, as I was hoping for some kind of magical repair resulting in a perfect seal. Maybe one has to go for the 63mm blades?
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- '90 ZR-1 |
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#55 | |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,384
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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#56 |
![]() Join Date: Nov 2016
Location: Norway
Posts: 397
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I am rather upset with myself for not knowing of this gentlemen you mention, before I spent over $600 (incl. $150 in shipping) to repair the TB. What a waste..
How can I get in touch with Mr. VanDeventer?
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- '90 ZR-1 |
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#57 |
![]() Join Date: Dec 2003
Location: Arcadia,OK
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Marc does excellent work & is highly respected in the ZR-1 community. Please do not take my suggestion wrong. I had no idea that you had Marc do a rebuild on your throttle body. You should contact Marc with your concerns. I have no doubt he will address them to your satisfaction.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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#58 |
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Location: Norway
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There is absolutely nothing wrong with the work Marc did on the TB, and it may very well be that the blades seal enough for the IAC to control the idle, if no other leaks are present. I'm sure he would've told me if he actually thought further work was necessary.
I probably failed to inform him of the extent of repair I was looking for. He has been vastly helpful throughout my restoration project, and I don't really wish to bother him any more with it.
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- '90 ZR-1 |
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#59 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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I doubt Marc considers it a bother.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#60 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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I have some original throttle plates
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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