The head bolts should be tightened in a specific sequence to ensure even distribution of pressure on the head gasket. Typically, this involves tightening them in a criss-cross pattern starting from the center and working outwards. It's important to consult your vehicle's service manual for the exact tightening sequence and torque specifications.
no the gasket should be rubber and should be bendable all you do is install it in the correct position and tighten the bolts in the right sequence
This could be caused by the use of the wrong-size filter, by not tightening the filter enough, or by having debris which break the seal between the oil line and the filter. Can also be you did not apply oil to the filter gasket. Can also be over-tightened the filter. Should be tightened 3/4 turn after making contact with the mounting surface.
If by valve gasket, you mean the valve cover gasket, then its rather simple. I have a site that shows how its done. Just remove the top nuts and replace. The nuts should be tightened evenly across the valve cover. Here's my site: http://www.cardomain.com/member_pages/search_results.cgi?searchbymemid=1&sort_by_override=member_id&member_id=rnmtwins feel free to e-mail me at raitedare@aol.com.
Then someone did not install the filter correctly or the gasket was defective. The gasket must have a thin coat of oil applied before installing or it can leak. The filter should be tightened no more or less than 3/4 turn after it makes contact with the mounting surface, or it may leak. Too tight or too loose and it may leak. The mounting surface may have grit on it or may be damaged. Look see.
If you needed a gasket and they replaced it then yes you would be charged for the gasket.
The long bolts should be torqued to 46 lb ft plus an additional 90 degrees, and the short bolts should be torqued to 43 lb ft plus an additional 90 degrees. They should also be tightened in sequence starting with the rear center bolt first, and then the front center bolt. The correct sequence, starting with the left rear bolt and moving clockwise would be: 8-4-1-5-9-10-6-2-3-7.
No, you should never have to trim a head gasket. If the holes do not match up, you have the wrong gasket.No, you should never have to trim a head gasket. If the holes do not match up, you have the wrong gasket.
you should only change the gasket if you have to take the valve cover off....... you should only change the gasket if you have to take the valve cover off.......
As far as I know, it should have a gasket. Make sure to use gasket sealer as well when replacing it.
Lug nuts should be tightened in a star pattern.
After all ropes are attached and tightened.