1G what are signs of bent valves???

[george89]

How do you know if you have bent valves i have 92 eclipse not turbo 2.0

 

[boost97gst]

Yes sounds pretty simple. So pull spark plug off number 1 cylinder insert screwdriver. And turn till its at its highest peak and check top end timing marks correct.

I suggest pulling all 4 plugs. No need to make it more difficult. With the plugs out you really only face friction and valvetrain resistance when youre cranking it by hand. Its way way easier. You may know this, just making sure, tryin to help ya out.

And btw, anything Bogus says: Listen to. He does this for a living, not a hobby. Dude knows his stuff like no one else on the site, save for a handful of guys.

 

[DSM1G90]

The sparkplug hole and screwdriver (or even a long straw, 1/4" dowel and similar) trick is the easy way to find TDC, if you know how to read the cam sprocket marks along with it.

Funny how the OP never answered or replied back to his original post ....

 

[Kylespencer]

Ussually with a bent valve you will hear a ticking, this is because on of your cylinders is missing. Get a peice of paper, start your car and put the paper flat against your exhaust, if it's missing the paper will be sucked in slightly when you motor fires on the missing cylinder. Usually on a healthy motor it will always push the paper outwards.

Easy to do if u can't compression test.
Good luck

 

[Ghost_92TSi]

I had warp valves. Cly 2 was dead. Pull the plug wire and made no difference how the car ran. Visually it all looked fine. Although there was a tiny metal speck/debris sitting on the seat.

 

[c2ypt1c]

rockers laying loose under valve cover.

+1 When my timing belt snapped and bent my valves, I had some loose rockers.

 

[george89]

thanks everybody im pulling the head off tomorrowwill post pics any body know of a good machinest id like to have it rebuilt thanks again

 

[haddixjl]

I think I have the same problem, I bought a non running car knowing no compression in the #4 cylinder, I tried turning the motor over by hand with a wrench and it rotates a little bit and stops, hopefully the valves are all that is hurt. What the best place to buy new valves from? The block is SBR stage 1 with 8.5:1 so if I'm going to rebuild the head I may aswell put decent parts into it.
Thanks
Jason