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10-23-2017
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#1 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Broken exhaust hangers and motor mounts
Ok so I’m starting to think there is a strong correlation here. I am aware of three instances where broken motor mounts correlated to broken exhaust hangers.
I recently noticed that my 180k mile Z has a broken exhaust hanger and another of the hangers has been rewelded. Today, as part of my current header/Exhaust/flywheel/clutch/shifter project I pulled the motor mounts. I found both mounts broken. Obviously a function of age and mileage. So this is now the fourth car with this issue that at least I am aware of. Begs the question how many of our 22 to 27 year old cars are running around with broken motor mounts. No amount of servicing or gingerly driving will prevent aging rubber mounts from breaking at some point. Checking them is not simple as they hide behind the heat blankets. Here’s photo of the 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. Last edited by Ccmano; 10-23-2017 at 08:08 PM. |
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10-23-2017
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#2 |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
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Re: Broken exhaust hangers and motor mounts
It clearly and indication of both age and mileage exacerbated by RPMs lol. If anybody is pulling the motor it's always time to replace the engine mount while you are there
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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