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07-17-2018
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#1 |
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Join Date: Jul 2018
Location: Seattle
Posts: 6
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Intake Duct Alignment?
Forgive me if I'm using incorrect terminology:
I'm looking at a '90 with 83k miles. There is a noticeable misalignment between the engine intake and the plastic air filter ductwork, as shown by the S-bend in the flexible duct just ahead of the engine intake. Every other LT-5 I've seen looks well aligned in this respect. This caught my eye and the owner has no explanation. Injectors have been replaced. The plastic parts looked to be mounted correctly above the radiator. The engine didn't seem to be out of position (I looked down past the valve covers on both sides) and it drove well. I thought maybe an engine mount might be worn, but that is usually a noticeable problem while driving. Anyone else seen this? Should I be concerned? |
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07-17-2018
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#2 |
 Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,446
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Re: Intake Duct Alignment?
I would be concerned
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07-17-2018
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#3 |
 Join Date: Nov 2014
Location: Brooklyn ny
Posts: 1,045
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Re: Intake Duct Alignment?
Check the easy things first.....Remove duct, make sure its not damaged or warped..Make sure its straight......Remove air filter housing, check alignment holes, maybe somebody retapped them? Put everything back straight if possible.....I have never seen that..
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07-17-2018
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#4 | |
 
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: Intake Duct Alignment?
Quote:
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07-17-2018
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#5 |
Join Date: Dec 2007
Location: NYC
Posts: 1,188
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Re: Intake Duct Alignment?
I seen that on a car that was in a accident before
__________________
90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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07-17-2018
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#6 |
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Join Date: Jun 2018
Location: Scottsdale, AZ
Posts: 36
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Re: Intake Duct Alignment?
I'd want to get that up on a lift and look underneath for damage.
If the seller is not trying to hide something, they should be agreeable to a pre-purchase inspection by a mechanic of your choice. Might be the best $150 you ever spend.
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Stacy Faught - 1978 Alfa Romeo Alfetta, 1983 Alfa Romeo GTV6 (3.5L), 1991 Corvette ZR1, 2018 Alfa Romeo Giulia Quadrifoglio |
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07-18-2018
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#7 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,446
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Re: Intake Duct Alignment?
Oh, and welcome to the forum.
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08-01-2018
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#8 |
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Join Date: Aug 2016
Location: Spring Hill, FL
Posts: 127
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Re: Intake Duct Alignment?
Check inside the drivers door near the hinges , if theres a vin plate there , it may be a rebuilt car . Check the title to see if its a salvaged car .
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08-01-2018
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#9 |
Join Date: May 2013
Location: Chicago
Posts: 981
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Re: Intake Duct Alignment?
The engine looks like it is tilted on the driver's side. If not a bad motor mount or simple fix I would pass that car up.
Easy way to check is measure the height from the rear of the plenum with the weather stripping on the windshield. Good luck.
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1993 ZR-1 #211 Yellow On Beige Beast #2 1992 ZR-1 #427 Black On Black *Sold* 1985 L98 Blue On Blue *Sold* |
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08-01-2018
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#10 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Intake Duct Alignment?
The engine is sitting low in the back too. My money is on engine mounts. A very common issue. This one bad though. I have speculated that most cars that have not yet replaced the mounts are actually driving around on broken mounts.
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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