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#21 | |
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95 ZR-1 BLK/Gry #392 LT5 Reg# 868 *RIP* ZR1NET Founding Mem #155 |
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#22 |
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Tom 1994 ZR-1 #009 "captured test fleet car" 1974 LS4 454 Vert 1982 L83 CFI...now a retired "dd"....Sold WAZOO Member |
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#23 |
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95 ZR-1 BLK/Gry #392 LT5 Reg# 868 *RIP* ZR1NET Founding Mem #155 |
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#24 | |
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![]() I would consider Carter's Billet Clips and Billet TB Cover....... ![]() ![]()
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Left Clickable links ![]() -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 05-01-2017 at 09:08 PM. |
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#25 |
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I would consider doing a bypass of the throttle body coolant.
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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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#26 |
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I would consider..........Oh........the list is too long for this post
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Left Clickable links ![]() -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 05-01-2017 at 09:45 PM. |
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#27 | ||
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![]() Don't know if I trust myself to do the throttle body coolant bypass... ![]() Quote:
You may as well post the long list, as I will probably take the Z out of service for awhile. After speaking to another member for a length of time, I am finding out that the primary blade is not to be completely closed and is supposed to be opened slightly. So it looks like that is not the source for my idle issue. So what I thought was to be was and is not!!! Their feeling is that there is a slight vacuum leak that happens when the engine warms up. Could be a number of items. So I think I may take the Z out of service and do a plenum pull. I have to start from the beginning and go through everything to find the issue. As was pointed out, the min/air adjustment may not fix the idle issue. Feeling was the idle air stop was not touched and you didn't have the idle problem in the past, so the theory again turns to a vacuum leaks as others have pointed out. And the fact that the test Yun and others suggested to me about blocking the TB and the results being that the idle came down from being high to "normal" but did not kill the engine. And as Yun and others have said in the past, this leans towards vacuum. The other member also agrees with this theory. And once again I appreciate everyone's input and welcome additional thoughts on the issue. So I imagine the best way to do this is start at the pull and go from there. To be continued........lol
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Tom 1994 ZR-1 #009 "captured test fleet car" 1974 LS4 454 Vert 1982 L83 CFI...now a retired "dd"....Sold WAZOO Member Last edited by Roadster; 05-01-2017 at 11:23 PM. |
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#28 |
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Tom,
You have yet another PM.... ![]() Cliff, Thanks for the kudos ![]()
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95 ZR-1 BLK/Gry #392 LT5 Reg# 868 *RIP* ZR1NET Founding Mem #155 |
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#29 |
![]() Join Date: May 2010
Location: Japan
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Thanks for sharing all these details and nice photos Tom! I have been having some idle issues since I got this 95, but time to address it. I have this NIB TB and might as well put it to use instead of on the shelf for the last 14 years or so.
![]() I'll add the Carter Bling Special while I'm at it and get the stainless fastener kit from Jerry. Thanks Phil for the adjustment screw tip and I'll do that while I'm at it. I'm waiting on my ported plenum and IHs from Corey so I can do this all at once. I would be better off sending the old TB to Marc to work his magic, but can't afford the down time right now without a garage. I have to do the coolant bypass too. Best wishes to get your issue squared away. Sent from my iPhone using ZR-1 Net Registry
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 ![]() Last edited by HAWAIIZR-1; 05-02-2017 at 08:58 AM. |
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#30 |
Join Date: May 2007
Location: Chicagoland, IL
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Marc offers a very simple coolant bypass solution utilizing a bent aluminum fuel line that passes under the plenum and connects the throttle body coolant hoses to each other.
The solution I have seals the coolant passages at the injector housing (both sides) and includes a small valve to bleed the coolant system.
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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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