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Valve to seat sealing - 2008 Chrysler Pt Cruiser

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What is the problem? Are you losing compression? Is the car smoking? WHAT?

Posted on Jan 20, 2013


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I have a 23hp intek with 120 psi in right and 165 psi in left need help

possible valve seat problem or ring problem in the lower side
ring problem could be checked with a wet test where oil in the cylinder will seal the rings and improve the compression reading
it it is a valve seat/seat insert problem the oil will make no difference

Oct 05, 2016 | Cars & Trucks

1 Answer

Location of EGR valve and symptoms of bad valve seals

you are right posible bad egr valve or you have carbon bild in the egr system and when came loose block the seat at the egr valve seat instal new egr valve with speciar gasket with screen an posible you save a lot

Sep 23, 2014 | Cars & Trucks

1 Answer

Smokes when starts for 2 seconds clears up runs great just change values seats

Was going to say that it was fuel,
but you said valve seats,so I would
say, there is still a problem with valve stem
seals & your getting oil down in the cylinders
on heat soak or off time

Aug 20, 2014 | Cars & Trucks

1 Answer

I just changed the valve seals on a Chevrolet Now the smoke is way worse At start up and when idle what's going on here

i would suggest the seals were'nt the correct one's or not fitted correctly, did you do this without removing the head ? if so you have to make sure you have the piston padded out with some nylon rope and then turn the crank a bit further so the valves are held tight in there seats before taking rocker,spring,collets etc apart, if you did it this way and are certain the seals are correct i would suggest that the valves could need grinding in as the new seals are adding pressure build up in rocker box and forcing oil past valve seat

Apr 25, 2014 | Cars & Trucks

1 Answer

Todd arndt

Tell the Machine Shop to repair the Valve Guides and it will last for a very long time. Valve Guides are a common repair. The Valve Stem Seals are normally replaced during a Valve Job.

I am hoping they replaced the Valve Itself if the Seat was replaced. Valves are not expensive (less than $10 each), and does not make any sense to not do this...

What is their definition of Valve Play? .00002 or .428? There is a Huge Difference

Apr 16, 2013 | SsangYong Korando Cars & Trucks

1 Answer

What is a leaking valve cover?

a leaking valve means that the gas is escaping threw the vave and the valve seat it is not sealing u have to remove the cylinder head and get the valve laped or new seats cut hope that helps u

Mar 26, 2011 | 1998 Audi A4

1 Answer

How difficult is it to replace valves in a 85 Toyota Pickup?

It can be done, but it is classified under the engine overhaul reconditioning, which can be time consuming and expensive for an engine machinist to do. To do it yourself is not usually recommended.--- REMOVAL & INSTALLATION A valve spring compressor is needed to remove the valves and springs; these are available at most auto parts and auto tool shops. A small magnet is very helpful for removing the keepers and spring seats. Set the head on its side on the bench. Install the spring compressor so that the fixed side of the tool is flat against the valve head in the combustion chamber, and the screw side is against the retainer. Slowly turn the screw in towards the head, compressing the spring. As the spring compresses, the keepers will be revealed; pick them off of the valve stem with the magnet as they are easily fumbled and lost. When the keepers are removed, back the screw out and remove the retainers and springs. Remove the compressor and pull the valves out of the head from the other side. Remove the valve seals by hand and remove the spring seats with the magnet. Fig. 1: After compressing the valve spring, be careful removing the keepers--they are easily fumbled 85783113.gif
Fig. 2: Always install new valve stem seals 85783114.gif
Fig. 3: Lightly tap each assembled valve stem to ensure correct fit of the keepers, retainer and seals 85783115.gif
Fig. 4: Special tool to remove the valve spring--you also need tool to hold valve up 85783273.jpg
Fig. 5: Removing the keepers with a magnet 85783274.jpg
Fig. 6: Removing the valve spring 85783275.jpg
Fig. 7: Removing the valve seal 85783276.jpg
Fig. 8: Installing the valve seal 85783277.jpg
Since it is very important that each valve and its spring, retainer, spring seat and keepers is reassembled in its original location, you must keep these parts in order. The best way to do this to cut either eight (four cylinder) or twelve (six cylinder) holes in a piece of heavy cardboard or wood. Label each hole with the cylinder number and either IN EXp>After lapping each valve into its seat (see Valve Lapping below), oil each valve stem, and install each valve into the head in the reverse order of removal, so that all parts except the keepers are assembled on the stem. Always use new valve stem seals. Install the spring compressor, and compress the retainer and spring until the keeper groove on the valve stem is fully revealed. Coat the groove with a wipe of grease (to hold the keepers until the retainer is released) and install both keepers, wide end up. Slowly back the screw of the compressor out until the spring retainer covers the keepers. Remove the tool. Lightly tap the end of each valve stem with a rubber hammer to ensure proper fit of the retainers and keepers. prev.gif next.gif

Dec 19, 2010 | 1985 Toyota Pickup

1 Answer

Without dismantling the engine describe fully two test procedures that could be used to confirm a misfire due to poor valve seat. its any car but it wouldnt allow me to send you the question without...

First I would check the compression of the engine if you haven't already. If it turns out that you need valve job only on one valve I would take the head off and go buy some valve grinding compound, a new valve, valve seals and a spring compressor. Next put the head on a 5 gallon bucket so it will catch the valve if it falls. Make sure the valve doesn't move around in the valve guide otherwise you will have to take it to a machine shop to have new guides pressed in. If the guide is fine then take a cordless drill and spin the chuck onto the valve then put a good amount of compound on it and then seat the valve while spinning it. This will grind into the existing seat and make it new. Keep checking it and you will notice the surfaces of the valve and the seat becoming flush. At this point I would put all new valve stem seals on while you have it apart. Once all the imperfections are ground out and the valve is seated clean all parts and reassemble. Don't spend hundreds on a valve job that you don't need.

Dec 03, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

Engine idles to fast and runs rough

you can check timing, or check for vacuum leaks

Oct 12, 2008 | 1989 Ford Bronco

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