Q:I was told Wed. that I need to have my aortic valve replaced. I was wondering if anyone could share their experience with this surgery good or bad. I am meeting with the surgeon on the 26th, and am very nervous. Any tips and or suggestions appreciated. I'm a 39 year old female.Thanks in advance

Lisa Sorry to hear that you have to have this done . I will put you in my prayer's , Haven't heard from you in some time if you feel like chatting send me a e-mail . Hope all goes well and Merry Christmas

Q:It has been known that although tissue valves have lower rates of thrombotic episodescompared with mechanical valves, they are difficult to procure, and their longevity has not yet been proven. Is this true as of 2007? Thanks for answering.

Tissue valves do last as long as mechanical valves in most cases. Most of those are porcine valves, and some are bovine. The majority of those are used to replace the aortic valve. The mitral is almost always replaced with a mechanical valve.

Q:does that mean it doesnt work?, how can i tell if the egr valve works still?

Not sure how to answer. First the vacuum line going to your egr only has vacuum under certain conditions and never at idle. If you have an egr code/problem.... email me with code/syptom and vehicle info i'll try to help further. :)

Q:Hey I was wondering how I can test the compression of the valves. Also if they are leaky. I'm thinking about valve rebuilding because my M series conn 8d was bought a few months ago and it was a school instrument. I like how it plays but I feel like there are things that should be done. The valves are one of them. So if there is any test for the valves please let me know. Thanks

If you like how it plays you might just wish to leave it alone. Anything you do is going to change the way it plays, perhaps to something you don't like. Check compression by pulling the valve slide part way out, wait a second or two and then push the key, as the air fills up the partial vacuum cause by pulling the slide you should hear a nice thunk. If there is no noise when you push the valve the air is leaking around the valve and that's bad compression. Another way to check is just slowly withdraw the valve slide. It should get harder as you pull due to the vacuum, if it comes all the way out it should pop.

Q:Does anyone out there have any tech info or schematics for state of the art camless engines that run pneumatic valve train?

i don't!!! LOL LOL

Q:its a vauxhall movara van and i need help im trying to found out wether the valves are broken all the springs are upright and all level , so does this mean there ok ? or not ... thanks

Cylinder compression test will tell you if you have a broken valve. Thats the best way. The valve might not be broken, it could just be a poor seal.

Q:And' the valve leaks......Can the valve be unscrewed from the tank for replacement? Or can the valve be serviced with a new gasket perhaps?

If it is a regular brass valve, you will have to drain the tank first, then replace the washer in the valve with one rated to be used for hot water. You replace the washer just as in any valve by removing the bonnet and stem. there you will see the washer. You may want to clean the area of any calcium carbonate that may had developed on the seat before putting it back together. If you decide to replace the valve, it is a 3/4 inch male NPT hose bib valve rated for hot water service. Personally, I've always thought that if I ever had to change one of those valves, that I would replace ti with a good ball valve that had a threaded hose end screwed into the discharge end for better drain flow. The whimpy valves that they put on water heaters is pathetic! If you use your favorite search engine and just search for water heater drain valve, you will find all kinds of cool replacement valves!

Q:Hello, I went to my garage last friday because my exhaust emmisions light was on, on my Bora MK4 2003 52 plate 1.6 16V. They said its a faulty EGR valve which could be from being clogged up with sh*t. But they said it would be fine to drive, and that the rough idle wouldn't harm the car, and to unplug it if the rough idle became annoying. Its now sunday 3 days since the garage diagnosed it I drove about 250 miles over these days. With the exhaust emissions light coming on then sometimes going off. I think the EGR Valve keeps sticking closed and the engine is very hard to start. Is there anything I can do to help start the car? which is better having it plugged in or unplugged? how do you take the EGR Valve out and clean it what tools are needed is it complicated. any ideas on how I can help it start ? I've tried unplugging it, it makes no difference really.

The EGR valve or Exhaust gas Recirculation valve is placed on the exhaust gadget. those frequently get hung up with rust and different exhaust deposits. The motorcar might want to be less than production unit assure being in easy words 3 years old. i might want to examine with a broking service to work out if the motorcar and/or section continues to be less than assure. A defective EGR valve will reason the computing device to make the incorrect settings to the gas and air mix causing the engine to run too prosperous or too lean. Its no longer too unfavourable contained in the little while period, yet your gas mielage will struggle through, and also you are able to fail a state inspection so get it repaired previously then.

Q:My mom just went to DR and will have open heart next Thursday for removal of anyerisum. She was told she has 2 heart valves instead of four. What does this mean? Is it normal?

Your mom probably has a Bicuspid aortic valve, that she was born with.. it means that the valve between her heart and the aorta has two valve leaflets instead of the usual three valve leaflets (not four) in normal people. Bicuspid aortic valve is caused by fusion of two of the three leaflets. It's a fairly common congenital condition, and is associated with a risk of aortic aneurysm (a weakening of the wall of the blood vessel which then causes ballooning of the vessel wall)...usually of the ascending aorta. All the best for her safe recovery.

Q:I have a 2000 Ford Explorer sport(2wd). I live in the Fort worth,Tx area. What would be a resonable price to have this valve changed out with a new one(valve labor)?

Valve is about $100 at dealer, $40 at Autozone, give or take, and it should take about 30 minutes, so I would guess about $150 max. I have same problem with 2002, trouble is it's on the transmission, and not that easy for a DIY. As to changing it, mine has caused the check engine light to go on, but has in no way effected the car, so I haven't bothered to change it yet.