What type of mechanical work is done on a car; when they say "Complete Valve Reseal"?

Answer 1

First, the head is removed. Then the valves are removed and the valve stem seals are replaced. Next, the valve stems are cleaned to avoid ruining the new seals. The valves and valve seats have to be re-ground, and then everything has to be re-assembled. It usually takes a few days, since the head is often sent out to a head reconditioning specialist. If not, I've personally done it is one (very long) day.

Answer 2

Seals may fix the problem but these days with no lead fuel and low nickel blocks and cylinder heads the honed valve guides are usually the offending problem. There are a couple of easy tests to figure if this is correct.

Remove all rocker arms. Carefully and slowly pull the push rods out. Remove all spark plugs. Install an air chuck adapter fitting in #1 spark plug hole. With a valve spring removal tool remove the retainers, valve locks and springs from that particular cylinder. If you see an excess of .003 movement at the end of any valve ends using a magnetic based tenth dial indicator, we have a problem. The correct valve stem to valve guide bore is determined in the factory service manual at your car dealer. You may get lucky if you know a mechanic.

For the old style small block Chevy's the intake valve clearance is .001 -.0025. The exhaust valves come in at .015 - .003. If the holes are over-sized the old bores are drilled out on a special fixture so the holes are straight. New high tech. steel or copper bronze wall guides are pressed in. The inner side walls have crosshatched oil grooves cast or machined in to lubricate the valve stems.

If you cut the guides for a seal job only knowing the guides are out of spec. there will never will be enough stock left for new valve guides. Think it over and do the right choice. You or your mechanic will know for sure what the cylinder heads needs are.

Answer 3

they change the valve stem seals which are on top of the head. you just have to use compressed air in the spark plug hole to keep the valves from falling in the engine while you have the springs offthen replace the seal and put the spring back on and repeat for each spring takes about an hour for a good mechanicor four hours for a diy'r.

Answer 4

your valve covers are removed first then your cylinders are pressurized to keep your valves from falling down in your cyl. then your rocker arms and valve springs are removed and then the rubber seal that keeps oil from running down in your cyl. is replace then everything reinstalled in reverse order really not alot to it. Unless you drop a valve!!

Answer 5

I somewhat have been in Angels Stadium, Dodger Stadium, Yankee Stadium, Petco Park and despite the call is of that sauna in Miami in purple Sox kit. anybody treats you with know/ignores you, different than the american followers. there is purely too lots historic previous there. It makes it exciting. As to your adventure, i could in no way understand why a Yankee fan might take place at Fenway for a purple Sox--Tigers pastime in Yankee kit. placed on Tiger kit for Heaven's sake. of course you would be the main loathed individual interior the park. somewhat wearing a Yankee hat interior the city of Boston isn't the brightest of strikes as a regular count.