Defect Description For Recall
On The Involved Vehicles, The Nuts Which Attach The Brake Master Cylinder To The Hydro-Boost Unit May Have Been Over-Tightened. This Could Have Caused Stripped Threads And Cracked Attaching Flanges. Should These Nuts Fail, The Parts May Separate And Loss Of Service Brakes Would Result.
Make Of Vehicle
CHEVROLET
Model Of Vehicle
C30
Year
1977
Recall Campaign Number
77V119000
Component Description
Service Brakes, Hydraulic:Power Assist:Vacuum
Effect Of Defect
Fix Defect
Dealer Will Inspect For Cracks In The Attaching Flanges; Units With Cracks Present Will Be Replaced. If No Cracks Are Found, The Studs Will Be Removed And The Holes Drilled Out. The Unit Will Be Reassembled Using Bolts And Nuts In Place Of The Existing Studs.
Vehicle Manufacturer
General Motors Corp.
Start Of Manufacture
End Of Manufacture
Type Of Vehicle Recall
V
Number Affected
1232
Date Owners Notified
19770810
Initiated By
Mfr
Responsible Manufacturer
General Motors, Llc
Date Report Received
19770810