I have a 1996 Buick lesabre with the 3.8 liter v6 motor. I just did a top end gasket set and need to know how to adjust the rocker arms. Can anyone help? I know I need to start on compression stroke to adjust the rocker at tdc but, am unsure about the exhaust valve. Any help would be great
Cars & Trucks - Buick - LeSabre - 1996 Buick LeSabre
Answers & Comments
Fig. 7: Rocker arms and related components - 1991-99 VIN L engine and 1998-99 VIN 1 engine (click image for zoom)
To install:
- If removed, install the pushrods and make sure they seat in the lifter.
On 1998-99 vehicles, the bolts rocker arm bolts are designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. Do NOT use a bolt which is stronger in this application. If the proper bolt is not used, the parts will not be tightened correctly, and part or system damage may occur.- Apply a threadlocking compound to the bolt threads before reassembly.
- Install the pedestal and rocker arm assemblies, then tighten the retaining bolts as follows:
- 1988-92 vehicles: 28 ft. lbs. (18 Nm).
- 1991-98 vehicles: 19 ft. lbs. (29 Nm), plus an additional 90° with a torque angle meter.
- 1999-99 vehicles: 11 ft. lbs. (19 Nm), plus an additional 90° with a torque angle meter.
- Install the valve cover(s), as outlined earlier, then connect the negative battery cable.
- Start engine and check for fluid leaks and listen for valve train noise.
I hope this helps, and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment.Have a nice day and thanks for using FixYa.
Jose.