Tag: C4

C4 Rear Axle Recommended Maintenance

The rear axels in C4 Corvettes are from Dana Corporation http://www.dana.com/ GM does not specify a service interval in the owners manual. Dana Corporation makes the following recommendations: 1. If there is any possibility of water contamination the oil needs to be changed immediately.

  Comments | By - April 21, 2010

Fixing a C4 Sport Seat Lumbar Support

A very common problem with the C4 sport seat is the failure of the pump that inflates the lumbar bladders internal to the back of the seat. The most prevalent failure is not the pump assembly, but simply the diaphragm within the pump sub-assembly. To gain access to the pump, look under the front of […] More »

  Comments | By - April 21, 2010

How To Repair and Refinish Interior Plastic Pieces

How to Repair & Refinish Interior Plastic Pieces by Lars Grimsrud SVE Automotive Restoration Musclecar, Collector & Exotic Auto Repair & Restoration Broomfield, CO Rev. New 5-7-01 Having seen some pretty rough-looking ‘Vette interiors, and some rougher-looking ‘Vette interior repair & refinish jobs, I thought I’d put together a little how-to on making your black […] More »

  Comments | By - April 21, 2010

Lumbar Pump Repair (Sport Seats)

This tip provides additional information to the Tech Tip “FIXING YOUR C4 SPORT SEAT LUMBAR SUPPORT” authored by Bob Thibodeau on 6/15/2001. 1. An alternative source for material to replace the ruptured diaphragm is a bicycle inner tube. It is much thicker than the original diaphragm, and should provide longer “life”. To prepare the tube, […] More »

  Comments | By - April 21, 2010

Replace Outer Window Seals

I ordered my seals form Eckler´┐Żs. Fit was perfect and included six replacement pop rivets but no instructions. I use a combination of previous posts and a little common sense to get the job done. The procedure was done on my 91. Adjustments should be made for other years. Took about 30 min per door […] More »

  Comments | By - April 21, 2010

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