2007-07-22 09:44:51 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Volvo
It depends on the type of engine and why do you think the valve may be bent, did the timing belt break while driving?
2007-07-22 16:13:29 · answer #1 · answered by ? 7 · 1⤊ 0⤋
Valves bend and break if somewhere along the line a timing belt breaks or timing chain sprocket wears out .
The only sure way to fix the problem is to remove the cylinder head and have all the valves checked and a valve grinding job done as well as checking and replacing valve springs and checking the valve guides. New valves, springs, caps and retainers are not expensive.
If you truly have bent valves or stems the car would not run at all. A compression test will find and verify the problem in 30 minutes.
2007-07-22 16:58:44 · answer #2 · answered by Country Boy 7 · 1⤊ 0⤋
Volvo B230 engines are non interference engines. Valves do not contact piston so there is no way to bend the valves with broken timing belt.
The way to check is to run your engine to normal operating temperature and perform a compression test. Any cylinder leaking air would have low compression. Then dump spoonful of oil in the cylinder though spark plug hole to seal the piston rings and do the compression test again. If you have bent valve, then you would still get low compression in the cylinder. If the compression value gets better, that usually means the cylinder is leaking air though the piston rings.
2007-07-24 01:53:42 · answer #3 · answered by Sang K 4 · 0⤊ 0⤋
DO a simple compression check on all cylinders. Any one cylinder with zero compression will be the one with the bent valve stem. If you can run the engine without losing too much oil, you should be able to see the cylinder with the bent valve NOT having as much travel as the others. You will have to remove the valve cover to do this.
2007-07-22 17:00:01 · answer #4 · answered by Phillip S 6 · 1⤊ 0⤋
it's highly unlikely because the bending of the valve (stems) screws up how the valves "seat" which is critical to the whole intake and exhaust process. As far as what caused the valves to bend...? Well if you have a timing belt on your Volvo, and it has an interference engine, AND the timing belt broke, that'll render em (the valves) FUBAR pretty much every time.
2007-07-22 16:59:17 · answer #5 · answered by remlap47 2 · 0⤊ 0⤋
If in fact your valves are bent, it's unlikely the car will start, and if it does, it'll run very rough. Why do you think this may be your problem?
2007-07-22 16:50:24 · answer #6 · answered by Anonymous · 1⤊ 0⤋
I would start but you would hear a lot of loud clicking coming from the valve cover even with the hood closed you would here the clicks. You would also loose power or even gain power. Your gas mileage would improve or start to suck. The main thing is the clicking noise.
2007-07-22 16:53:03 · answer #7 · answered by jammersay 2 · 0⤊ 2⤋
What model Volvo do you have? 240,740,940 will not bend valves. 850,960 will.
2007-07-22 22:45:33 · answer #8 · answered by David S 5 · 2⤊ 1⤋